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ModelsZ.aiGLM 5.1

GLM 5.1

z-ai/glm-5.1203k context Compare →
MedianThe median blended price among comparable offers: one price per provider (its cheapest route), standard tier, current prices only. Priority tiers and prices converted from points are not counted.
$1.96
Most expensiveThe highest blended price among comparable offers: one price per provider (its cheapest route), standard tier, current prices only. Priority tiers and prices converted from points are not counted.
$2.15
Offers
70
Providers
36

Cheapest right now

Chutes

The provider's published policy: prompts are not used for training.

directYou buy access straight from the company that runs the model on its servers. · fp8 · 203k

$1.40 blended / 1M tokens

-2.1%7D
in
$0.90
out
$2.90
Cached input
$0.09
See pricing See pricing at Chutes (opens in a new tab)at Chutes

Public leaderboards

  • Text Arena, style controlThe series the source publishes by default for text since 16 May 2025: ranks corrected for the style of the answers (style control). #43 of 419Best rank in the source's rank spread, 43rd to 63rd, given the confidence intervals of all ranked models. 54th by score. 1,465 1,462 to 1,469Arena Score · 66,771 votes
  • Code Arena (WebDev)The Code Arena ranking (WebDev). The source publishes no style-corrected series (as read on 9 October 2026). #56 of 152Best rank in the source's rank spread, 56th to 66th, given the confidence intervals of all ranked models. 63rd by score. 1,508 1,501 to 1,515Arena Score · 10,647 votes

Source: Arena (opens in a new tab) · Data under the CC BY 4.0 license (creativecommons.org/licenses/by/4.0) · CC BY 4.0 (opens in a new tab) · scores and ranks as published on 28 Oct 2026; the presentation is ours

GLM 5.1 costs from $1.40 per million tokens (at a 3:1 input:output mix): the cheapest of 21 comparable offers, at Chutes, checked on ; 70 offers are listed.

Listed offers, by price

Comparable offersOther offersSolid steps are comparable offers; dashed steps are the other offers, which are not counted in cheapest, median or most expensive.Official list price

Offers not counted in cheapest, median or most expensive (49)

  • $1.15 · NanoGPT via NanoGPT · cannot be designated the cheapest
  • $1.30 · Avian · cannot be designated the cheapest
  • $1.38 · Baidu via OpenRouter · cannot be designated the cheapest
  • $1.40 · Alibaba via Eden AI · cannot be designated the cheapest
  • $1.40 · Chutes via Kilo Gateway · cannot be designated the cheapest
  • $1.40 · Chutes via OpenRouter · another route of the same provider
  • $1.48 · Glama via Glama · cannot be designated the cheapest
  • $1.48 · Martian via Martian · cannot be designated the cheapest
  • $1.58 · UCloud · cannot be designated the cheapest
  • $1.58 · ShengSuanYun via ShengSuanYun · cannot be designated the cheapest
  • $1.66 · DeepInfra via Eden AI · cannot be designated the cheapest
  • $1.66 · FastRouter via FastRouter · cannot be designated the cheapest
  • $1.66 · DeepInfra via LLM Gateway · cannot be designated the cheapest
  • $1.66 · DeepInfra via Requesty · another route of the same provider
  • $1.83 · SiliconFlow via Kilo Gateway · cannot be designated the cheapest
  • $1.94 · AtlasCloud via Kilo Gateway · cannot be designated the cheapest
  • $1.94 · AtlasCloud via OpenRouter · another route of the same provider
  • $1.96 · Phala via Kilo Gateway · cannot be designated the cheapest
  • $2.04 · Alibaba via Kilo Gateway · cannot be designated the cheapest
  • $2.13 · Cortecs via Cortecs · cannot be designated the cheapest
  • $2.14 · Novita via Kilo Gateway · cannot be designated the cheapest
  • $2.14 · Novita via Vercel AI Gateway · another route of the same provider
  • $2.14 · Novita via LLM Gateway · another route of the same provider
  • $2.14 · Novita via Requesty · another route of the same provider
  • $2.14 · Novita via OpenRouter · another route of the same provider
  • $2.15 · Arkanecloud via Eden AI · cannot be designated the cheapest
  • $2.15 · Baidu via Kilo Gateway · cannot be designated the cheapest
  • $2.15 · Friendli via Kilo Gateway · cannot be designated the cheapest
  • $2.15 · GMICloud via Kilo Gateway · cannot be designated the cheapest
  • $2.15 · Nebius via Eden AI · cannot be designated the cheapest
  • $2.15 · Nebius via Kilo Gateway · cannot be designated the cheapest
  • $2.15 · StreamLake via Kilo Gateway · cannot be designated the cheapest
  • $2.15 · TensorX via Eden AI · cannot be designated the cheapest
  • $2.15 · Z.AI via Eden AI · cannot be designated the cheapest
  • $2.15 · Z.AI via Kilo Gateway · cannot be designated the cheapest
  • $2.15 · Z.AI via LLM API · cannot be designated the cheapest
  • $2.15 · Nous Portal via Nous Portal · cannot be designated the cheapest
  • $2.15 · OrcaRouter via OrcaRouter · cannot be designated the cheapest
  • $2.15 · Baidu via LLM Gateway · cannot be designated the cheapest
  • $2.15 · Z.AI via LLM Gateway · another route of the same provider
  • $2.15 · Nebius via LLM Gateway · cannot be designated the cheapest
  • $2.15 · Together via LLM Gateway · cannot be designated the cheapest
  • $2.15 · Z.AI via Requesty · another route of the same provider
  • $2.15 · Friendli via OpenRouter · another route of the same provider
  • $2.15 · Nebius via OpenRouter · another route of the same provider
  • $2.15 · Z.AI via OpenRouter · another route of the same provider
  • $2.15 · io.net · cannot be designated the cheapest
  • $2.37 · Venice · another route of the same provider
  • $2.37 · Venice via Kilo Gateway · cannot be designated the cheapest

Price historyThe cheapest offer each day, against the lab's official list price when it publishes one. Each day at 00:00 UTC, the offer the API would have selected as the cheapest, with the same exclusions as /cheapest. Blended price, promotions included.

Cheapest offer and official list price, by day, 30 days
DayCheapest offerOfficial list price
2026-10-02$1.21, NanoGPT$1.58
2026-10-03$1.21, NanoGPT$1.58
2026-10-04$1.21, NanoGPT$1.58
2026-10-05$1.21, NanoGPT$1.58
2026-10-06$1.21, NanoGPT$1.58
2026-10-07$1.21, NanoGPT$1.58
2026-10-08$1.21, NanoGPT$1.58
2026-10-09$1.21, NanoGPT$1.58
2026-10-10$1.21, NanoGPT$1.58
2026-10-11$1.21, NanoGPT$1.58
2026-10-12$1.21, NanoGPT$1.58
2026-10-13$1.15, NanoGPT$1.58
2026-10-14$1.15, NanoGPT$1.58
2026-10-15$1.15, NanoGPT$1.58
2026-10-16$1.15, NanoGPT$1.58
2026-10-17$1.15, NanoGPT$1.58
2026-10-18$1.15, NanoGPT$1.58
2026-10-19$1.30, Avian$1.58
2026-10-20$1.30, Avian$1.58
2026-10-21$1.30, Avian$1.58
2026-10-22$1.43, Embercloud$1.58
2026-10-23$1.43, Embercloud$1.58
2026-10-24$1.43, Embercloud$1.58
2026-10-25$1.43, Embercloud$1.58
2026-10-26$1.43, Embercloud$1.58
2026-10-27$1.40, Chutes$1.58
2026-10-28$1.40, Chutes$1.58
2026-10-29$1.40, Chutes$1.58
2026-10-30$1.40, Chutes$1.58
2026-10-31$1.40, Chutes$1.58

Cheapest offerOfficial list price

Offers

The 25 cheapest of 70 offers

Offers for GLM 5.1, one row per offer, sorted by blended price.
RankProvider · viaYou buy access through an aggregator: one account and one API that forward your requests to other providers. "Via" names the aggregator; the price is the one it charges you. When "via" says "hosted API", no aggregator is involved: the model belongs to a lab and another provider sells it.Input $/1MOutput $/1MBlended $/1MA single price that mixes input and output: 3 input tokens for 1 output token, per million tokens. It makes offers easy to rank; your real cost depends on your own mix.PrecisionHow finely the model's numbers are stored on the provider's servers. Lower precision (fp8, fp4) is cheaper to run and can slightly change answer quality; "unknown" means the provider doesn't say. ContextThe maximum amount of text, counted in tokens, the model can take in and write in a single request. Past this limit, the request is refused or cut.ConditionsWhat a provider says about how it handles your data and who can sign up: training on prompts, processing region, sign-up requirements. Each comes from the provider's published documents; when nothing is published, it stays unknown.SignalsOffer
1 NanoGPT 0.70  2.50 1.15 – 200k Thinking: Thinking: a mode of the model, not its standard offer. Never designated cheapest while a standard offer exists
Go to offer at NanoGPT (opens in a new tab)
2 Avian 0.743 2.97 1.30 – 203k Unverified. Neither seller nor price found on its page for 72 hours: listed, not designated cheapest
See pricing at Avian (opens in a new tab)
3 Baiduvia OpenRouter 0.899 2.82 promo: Promotion announced by OpenRouter · −36% vs its usual price · end date not published1.38 fp8 203k Fee 5.5%: OpenRouter adds a 5.5% fee when you buy credits (read on openrouter.ai/pricing on Oct 30). Offers are ranked with this fee included.
Go to offer at OpenRouter (opens in a new tab)
4 Alibabavia Eden AI 0.91  2.86 1.40 fp8 203k Unverified. No public page for this offer: listed, not designated cheapest
: Eden AI (opens in a new tab). No public price page for this model
5 Chutes 0.90  2.90 1.40 fp8 203k
See pricing at Chutes (opens in a new tab)
6 Chutesvia Kilo Gateway 0.90  2.90 1.40 fp8 203k Unverified. The source page shows one price per model, not this seller's: listed, not designated cheapest
Go to offer at Kilo Gateway (opens in a new tab)
7 Chutesvia OpenRouter 0.90  2.90 1.40 fp8 203k Fee 5.5%: OpenRouter adds a 5.5% fee when you buy credits (read on openrouter.ai/pricing on Oct 30). Offers are ranked with this fee included.
Go to offer at OpenRouter (opens in a new tab)
8 Glama 0.966 3.04 1.48 – 200k Unverified. No public page for this offer: listed, not designated cheapest
: Glama (opens in a new tab). No public price page for this model
9 Martian 0.966 3.04 1.48 – – worldwide Unverified. Neither seller nor price found on its page for 72 hours: listed, not designated cheapest
See pricing at Martian (opens in a new tab)
10 StreamLakevia OpenRouter 0.966 3.04 1.48 fp8 200k Price drop observed: The blended price is 31% lower than before this drop; possibly temporary. · Discount shown by the seller, no end date announced, seen on Oct 30, 2026Fee 5.5%: OpenRouter adds a 5.5% fee when you buy credits (read on openrouter.ai/pricing on Oct 30). Offers are ranked with this fee included.
Go to offer at OpenRouter (opens in a new tab)
11 ZenMux 0.878 3.51 1.54 – 200k prompt up to 32K (31,999) tokens: up to 32K (31,999): $0.878 / $3.51; above that: $1.17 / $4.10 (Input / Output, per million tokens)
Go to offer at ZenMux (opens in a new tab)
12 Qiniu 0.902 3.61 1.58 – 200k prompt up to 32K tokens: up to 32K: $0.902 / $3.61; above that: $1.20 / $4.21 (Input / Output, per million tokens)
See pricing at Qiniu (opens in a new tab)
13 Zhipu AI 0.902 3.61 1.58 – – prompt up to 32K (31,999) tokens: up to 32K (31,999): $0.902 / $3.61; above that: $1.20 / $4.21 (Input / Output, per million tokens)
See pricing at Zhipu AI (opens in a new tab)
14 UCloud 0.902 3.61 1.58 – – Unverified. No public page for this offer: listed, not designated cheapestprompt up to 32K tokens: up to 32K: $0.902 / $3.61; up to 200K: $1.20 / $4.21 (Input / Output, per million tokens)
: UCloud (opens in a new tab). No public price page for this model
15 ShengSuanYun 0.902 3.61 1.58 – 200k Unverified. No public page for this offer: listed, not designated cheapest
: ShengSuanYun (opens in a new tab). No public price page for this model
16 DeepInfravia Eden AI 1.05  3.50 1.66 fp4 203k United States Unverified. No public page for this offer: listed, not designated cheapest
: Eden AI (opens in a new tab). No public price page for this model
17 DeepInfravia Hugging Face 1.05  3.50 1.66 – 203k United States
See pricing at Hugging Face (opens in a new tab)
18 FastRouter 1.05  3.50 1.66 – 203k Unverified. Neither seller nor price found on its page for 72 hours: listed, not designated cheapest
Go to offer at FastRouter (opens in a new tab)
19 DeepInfravia LLM Gateway 1.05  3.50 1.66 fp4 – United States Fee 5%: LLM Gateway adds a 5% fee on credit usage, plus 1.5% for cards issued outside the US (read on llmgateway.io/pricing on Oct 30). Offers are ranked with the 5% included.
Go to offer at LLM Gateway (opens in a new tab)
20 DeepInfravia Requesty 1.05  3.50 1.66 fp4 203k United States Fee 5%: Requesty adds a 5% markup (read on requesty.ai/pricing on Oct 30). Offers are ranked with this fee included.
Go to offer at Requesty (opens in a new tab)
21 SiliconFlowvia Kilo Gateway 1.19  3.74 1.83 fp8 205k Unverified. The source page shows one price per model, not this seller's: listed, not designated cheapest
Go to offer at Kilo Gateway (opens in a new tab)
22 SiliconFlowvia OpenRouter 1.19  3.74 1.83 fp8 205k Fee 5.5%: OpenRouter adds a 5.5% fee when you buy credits (read on openrouter.ai/pricing on Oct 30). Offers are ranked with this fee included.
Go to offer at OpenRouter (opens in a new tab)
23 AtlasCloud 1.26  3.96 1.94 fp8 203k
See pricing at AtlasCloud (opens in a new tab)
24 AtlasCloudvia Kilo Gateway 1.26  3.96 1.94 fp8 203k Unverified. The source page shows one price per model, not this seller's: listed, not designated cheapest
Go to offer at Kilo Gateway (opens in a new tab)
25 AtlasCloudvia OpenRouter 1.26  3.96 1.94 fp8 203k Fee 5.5%: OpenRouter adds a 5.5% fee when you buy credits (read on openrouter.ai/pricing on Oct 30). Offers are ranked with this fee included.
Go to offer at OpenRouter (opens in a new tab)

No training on promptsPrompts may be used for trainingTraining terms not published

backend not named. The router bills this price itself without naming who serves the model.

  • NanoGPT

    $1.15

    NanoGPT

    in
    $0.70 
    out
    $2.50
    Precision
    –
    Context
    200k

    No training on promptsThinking: Thinking: a mode of the model, not its standard offer. Never designated cheapest while a standard offer exists

    Go to offer Go to offer at NanoGPT (opens in a new tab)via NanoGPT

  • Avian

    $1.30

    direct

    in
    $0.743
    out
    $2.97
    Precision
    –
    Context
    203k

    No training on promptsUnverified. Neither seller nor price found on its page for 72 hours: listed, not designated cheapest

    See pricing See pricing at Avian (opens in a new tab)at Avian

  • Baidu

    promo: Promotion announced by OpenRouter · −36% vs its usual price · end date not published$1.38

    OpenRouter

    in
    $0.899
    out
    $2.82
    Precision
    fp8
    Context
    203k

    Training terms not publishedFee 5.5%: OpenRouter adds a 5.5% fee when you buy credits (read on openrouter.ai/pricing on Oct 30). Offers are ranked with this fee included.

    Go to offer Go to offer at OpenRouter (opens in a new tab)via OpenRouter

  • Alibaba

    $1.40

    Eden AI

    in
    $0.91 
    out
    $2.86
    Precision
    fp8
    Context
    203k

    Prompts may be used for trainingUnverified. No public page for this offer: listed, not designated cheapest

    Seller's site: Eden AI (opens in a new tab)No public price page for this model

  • Chutes

    $1.40

    direct

    in
    $0.90 
    out
    $2.90
    Precision
    fp8
    Context
    203k

    No training on prompts

    See pricing See pricing at Chutes (opens in a new tab)at Chutes

  • Chutes

    $1.40

    Kilo Gateway

    in
    $0.90 
    out
    $2.90
    Precision
    fp8
    Context
    203k

    Training terms not publishedUnverified. The source page shows one price per model, not this seller's: listed, not designated cheapest

    Go to offer Go to offer at Kilo Gateway (opens in a new tab)via Kilo Gateway

  • Chutes

    $1.40

    OpenRouter

    in
    $0.90 
    out
    $2.90
    Precision
    fp8
    Context
    203k

    No training on promptsFee 5.5%: OpenRouter adds a 5.5% fee when you buy credits (read on openrouter.ai/pricing on Oct 30). Offers are ranked with this fee included.

    Go to offer Go to offer at OpenRouter (opens in a new tab)via OpenRouter

  • Glama

    $1.48

    Glama

    in
    $0.966
    out
    $3.04
    Precision
    –
    Context
    200k

    No training on promptsUnverified. No public page for this offer: listed, not designated cheapestbackend not named: The router bills this price itself without naming who serves the model.

    Seller's site: Glama (opens in a new tab)No public price page for this model

  • Martian

    $1.48

    Martian

    in
    $0.966
    out
    $3.04
    Precision
    –
    Context
    –

    Training terms not publishedworldwideUnverified. Neither seller nor price found on its page for 72 hours: listed, not designated cheapestbackend not named: The router bills this price itself without naming who serves the model.

    See pricing See pricing at Martian (opens in a new tab)via Martian

  • StreamLake

    $1.48

    OpenRouter

    in
    $0.966
    out
    $3.04
    Precision
    fp8
    Context
    200k

    Training terms not publishedPrice drop observed: The blended price is 31% lower than before this drop; possibly temporary. · Discount shown by the seller, no end date announced, seen on Oct 30, 2026Fee 5.5%: OpenRouter adds a 5.5% fee when you buy credits (read on openrouter.ai/pricing on Oct 30). Offers are ranked with this fee included.

    Go to offer Go to offer at OpenRouter (opens in a new tab)via OpenRouter

  • ZenMux

    $1.54

    ZenMux

    in
    $0.878
    out
    $3.51
    Precision
    –
    Context
    200k

    Prompts may be used for trainingprompt up to 32K (31,999) tokens: up to 32K (31,999): $0.878 / $3.51; above that: $1.17 / $4.10 (Input / Output, per million tokens)

    Go to offer Go to offer at ZenMux (opens in a new tab)via ZenMux

  • Qiniu

    $1.58

    direct

    in
    $0.902
    out
    $3.61
    Precision
    –
    Context
    200k

    Training terms not publishedprompt up to 32K tokens: up to 32K: $0.902 / $3.61; above that: $1.20 / $4.21 (Input / Output, per million tokens)

    See pricing See pricing at Qiniu (opens in a new tab)at Qiniu

  • Zhipu AI

    $1.58

    Zhipu AI

    in
    $0.902
    out
    $3.61
    Precision
    –
    Context
    –

    Prompts may be used for trainingprompt up to 32K (31,999) tokens: up to 32K (31,999): $0.902 / $3.61; above that: $1.20 / $4.21 (Input / Output, per million tokens)

    See pricing See pricing at Zhipu AI (opens in a new tab)via Zhipu AI

  • UCloud

    $1.58

    direct

    in
    $0.902
    out
    $3.61
    Precision
    –
    Context
    –

    Training terms not publishedUnverified. No public page for this offer: listed, not designated cheapestprompt up to 32K tokens: up to 32K: $0.902 / $3.61; up to 200K: $1.20 / $4.21 (Input / Output, per million tokens)

    Seller's site: UCloud (opens in a new tab)No public price page for this model

  • ShengSuanYun

    $1.58

    ShengSuanYun

    in
    $0.902
    out
    $3.61
    Precision
    –
    Context
    200k

    Training terms not publishedUnverified. No public page for this offer: listed, not designated cheapest

    Seller's site: ShengSuanYun (opens in a new tab)No public price page for this model

  • DeepInfra

    $1.66

    Eden AI

    in
    $1.05 
    out
    $3.50
    Precision
    fp4
    Context
    203k

    Prompts may be used for trainingUnited StatesUnverified. No public page for this offer: listed, not designated cheapest

    Seller's site: Eden AI (opens in a new tab)No public price page for this model

  • DeepInfra

    $1.66

    Hugging Face

    in
    $1.05 
    out
    $3.50
    Precision
    –
    Context
    203k

    No training on promptsUnited States

    See pricing See pricing at Hugging Face (opens in a new tab)via Hugging Face

  • FastRouter

    $1.66

    FastRouter

    in
    $1.05 
    out
    $3.50
    Precision
    –
    Context
    203k

    Training terms not publishedUnverified. Neither seller nor price found on its page for 72 hours: listed, not designated cheapestbackend not named: The router bills this price itself without naming who serves the model.

    Go to offer Go to offer at FastRouter (opens in a new tab)via FastRouter

  • DeepInfra

    $1.66

    LLM Gateway

    in
    $1.05 
    out
    $3.50
    Precision
    fp4
    Context
    –

    No training on promptsUnited StatesFee 5%: LLM Gateway adds a 5% fee on credit usage, plus 1.5% for cards issued outside the US (read on llmgateway.io/pricing on Oct 30). Offers are ranked with the 5% included.

    Go to offer Go to offer at LLM Gateway (opens in a new tab)via LLM Gateway

  • DeepInfra

    $1.66

    Requesty

    in
    $1.05 
    out
    $3.50
    Precision
    fp4
    Context
    203k

    Prompts may be used for trainingUnited StatesFee 5%: Requesty adds a 5% markup (read on requesty.ai/pricing on Oct 30). Offers are ranked with this fee included.

    Go to offer Go to offer at Requesty (opens in a new tab)via Requesty

  • SiliconFlow

    $1.83

    Kilo Gateway

    in
    $1.19 
    out
    $3.74
    Precision
    fp8
    Context
    205k

    Training terms not publishedUnverified. The source page shows one price per model, not this seller's: listed, not designated cheapest

    Go to offer Go to offer at Kilo Gateway (opens in a new tab)via Kilo Gateway

  • SiliconFlow

    $1.83

    OpenRouter

    in
    $1.19 
    out
    $3.74
    Precision
    fp8
    Context
    205k

    Training terms not publishedFee 5.5%: OpenRouter adds a 5.5% fee when you buy credits (read on openrouter.ai/pricing on Oct 30). Offers are ranked with this fee included.

    Go to offer Go to offer at OpenRouter (opens in a new tab)via OpenRouter

  • AtlasCloud

    $1.94

    direct

    in
    $1.26 
    out
    $3.96
    Precision
    fp8
    Context
    203k

    Training terms not published

    See pricing See pricing at AtlasCloud (opens in a new tab)at AtlasCloud

  • AtlasCloud

    $1.94

    Kilo Gateway

    in
    $1.26 
    out
    $3.96
    Precision
    fp8
    Context
    203k

    Training terms not publishedUnverified. The source page shows one price per model, not this seller's: listed, not designated cheapest

    Go to offer Go to offer at Kilo Gateway (opens in a new tab)via Kilo Gateway

  • AtlasCloud

    $1.94

    OpenRouter

    in
    $1.26 
    out
    $3.96
    Precision
    fp8
    Context
    203k

    Training terms not publishedFee 5.5%: OpenRouter adds a 5.5% fee when you buy credits (read on openrouter.ai/pricing on Oct 30). Offers are ranked with this fee included.

    Go to offer Go to offer at OpenRouter (opens in a new tab)via OpenRouter
Show all 70 offers

1 flex or batch offer hidden (lower priority, variable latency).

Blended = (3 × input + output) / 4, per million tokens. Prices in USD, converted at the ECB rate when the provider bills in another currency.

Method

Monthly cost for your workload

Computed by the API for the three cheapest offers, per 30-day month.
  1. Chutes$97.50per month
  2. Baidu$96.30per month+$-1.20 vs the cheapest
  3. ZenMux$105.38per month+$7.88 vs the cheapest

Host it yourself instead? See the break-even

Compare GLM 5.1 with

Related models

More from Z.ai

All Z.ai models

Same index family

Use this data

The index is queryable. The API is free to use.
Free API
curl https://api.inferindex.dev/cheapest?model=z-ai/glm-5.1
MCP server
claude mcp add --transport http inferindex https://mcp.inferindex.dev/mcp

Also works in Cursor and Codex: see the MCP page.