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ModelsOpenAIGPT-5.6 Sol

GPT-5.6 Sol

openai/gpt-5.6-sol1.1M 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.
$8.80
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.
$11.25
Offers
56
Providers
21

Cheapest right now

NanoGPT

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

1.1M

$4.00 blended / 1M tokens

-50.0%7D
in
$2.00
out
$10.00
Cached input
$0.20

Below the lab's list price: Resold below the lab's list price (−50% vs lab list price), without a declared discount.

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).xHigh setting #13 of 419Best rank in the source's rank spread, 13th to 35th, given the confidence intervals of all ranked models. 22nd by score. 1,485 1,481 to 1,489Arena Score · 43,796 votes listed as “GPT-5.6 Sol (xHigh)”
  • Agent Arena aggregateThe Agent Arena aggregate score: a score of another kind (not an Arena score), on a scale of its own; it cannot be compared with the other series.xHigh setting #13 of 57Best rank in the source's rank spread, 13th to 17th, given the confidence intervals of all ranked models. 14th by score. 0.048 0.038 to 0.058IPS score · 6,126,242 observations listed as “GPT-5.6 Sol (xHigh)”

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

GPT-5.6 Sol: the lowest current price is $4.00 per million tokens (at a 3:1 input:output mix), a price below the lab's list price at NanoGPT, checked on ; the median of the 22 comparable offers is $8.80.

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 (34)

  • $5.63 · Glama via Glama · cannot be designated the cheapest
  • $8.00 · OpenAI via Eden AI · cannot be designated the cheapest
  • $8.00 · OpenAI via Kilo Gateway · cannot be designated the cheapest
  • $8.00 · OpenAI via LLM API · cannot be designated the cheapest
  • $8.00 · OpenAI via Vercel AI Gateway · another route of the same provider
  • $8.00 · Amazon Bedrock via Kilo Gateway · cannot be designated the cheapest
  • $8.00 · Azure via Eden AI · cannot be designated the cheapest
  • $8.00 · Azure via Kilo Gateway · cannot be designated the cheapest
  • $8.00 · Azure via LLM API · cannot be designated the cheapest
  • $8.00 · Novita via LLM API · cannot be designated the cheapest
  • $8.00 · Abacus RouteLLM via Abacus RouteLLM · cannot be designated the cheapest
  • $8.00 · FastRouter via FastRouter · cannot be designated the cheapest
  • $8.00 · Martian via Martian · cannot be designated the cheapest
  • $8.00 · Nous Portal via Nous Portal · cannot be designated the cheapest
  • $8.00 · OrcaRouter via OrcaRouter · cannot be designated the cheapest
  • $8.00 · OpenAI via LLM Gateway · another route of the same provider
  • $8.00 · OpenAI via Requesty · another route of the same provider
  • $8.00 · OpenAI via OpenRouter · another route of the same provider
  • $8.00 · Azure via OpenRouter · another route of the same provider
  • $8.42 · ShengSuanYun via ShengSuanYun · cannot be designated the cheapest
  • $8.80 · Amazon Bedrock via Eden AI · cannot be designated the cheapest
  • $8.80 · Amazon Bedrock via Eden AI · cannot be designated the cheapest
  • $8.80 · Amazon Bedrock via Kilo Gateway · cannot be designated the cheapest
  • $8.80 · Azure via Eden AI · cannot be designated the cheapest
  • $8.80 · Azure via Eden AI · cannot be designated the cheapest
  • $8.80 · Azure via Kilo Gateway · cannot be designated the cheapest
  • $8.80 · Azure via Kilo Gateway · cannot be designated the cheapest
  • $8.80 · Aws-mantle via LLM Gateway · cannot be designated the cheapest
  • $8.80 · Amazon Bedrock via OpenRouter · another route of the same provider
  • $8.82 · Cortecs via Cortecs · cannot be designated the cheapest
  • $11.25 · Azure via Vercel AI Gateway · another route of the same provider
  • $16.00 · OpenAI via Kilo Gateway · cannot be designated the cheapest
  • $16.00 · Vercel AI Gateway via Vercel AI Gateway · priority tier
  • $16.00 · OpenAI via OpenRouter · priority tier

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$4.00, OpenAI$8.00
2026-10-03$4.00, OpenAI$8.00
2026-10-04$4.00, OpenAI$8.00
2026-10-05$4.00, OpenAI$8.00
2026-10-06$4.00, OpenAI$8.00
2026-10-07$4.00, OpenAI$8.00
2026-10-08$4.00, OpenAI$8.00
2026-10-09$4.00, OpenAI$8.00
2026-10-10$4.00, OpenAI$8.00
2026-10-11$4.00, OpenAI$8.00
2026-10-12$4.00, OpenAI$8.00
2026-10-13$4.00, OpenAI$8.00
2026-10-14$4.00, OpenAI$8.00
2026-10-15$4.00, NanoGPT$8.00
2026-10-16$4.00, NanoGPT$8.00
2026-10-17$4.00, NanoGPT$8.00
2026-10-18$4.00, NanoGPT$8.00
2026-10-19$8.00, OpenAI$8.00
2026-10-20$8.00, OpenAI$8.00
2026-10-21$8.00, OpenAI$8.00
2026-10-22$8.00, OpenAI$8.00
2026-10-23$8.00, OpenAI$8.00
2026-10-24$8.00, OpenAI$8.00
2026-10-25$8.00, OpenAI$8.00
2026-10-26$4.00, NanoGPT$8.00
2026-10-27$4.00, NanoGPT$8.00
2026-10-28$4.00, NanoGPT$8.00
2026-10-29$4.00, NanoGPT$8.00
2026-10-30$4.00, NanoGPT$8.00
2026-10-31$4.00, NanoGPT$8.00

Cheapest offerPromotional priceOfficial list price

Offers

The 25 cheapest of 56 offers

Offers for GPT-5.6 Sol, 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. 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 2.00 10.00 4.00 1.1M Below the lab's list price: Resold below the lab's list price (−50% vs lab list price), without a declared discount.
2 Glama 2.50 15.00 5.63 1.1M Unverified. No public page for this offer: listed, not designated cheapestBelow the lab's list price: Resold below the lab's list price (−30% vs lab list price), without a declared discount.
3 OpenAI 4.00 20.00 8.00 – prompt up to 272K tokens: up to 272K: $4.00 / $20.00; above that: $8.00 / $30.00 (Input / Output, per million tokens)
4 OpenAIvia Eden AI 4.00 20.00 8.00 1.1M Unverified. No public page for this offer: listed, not designated cheapest
5 OpenAIvia Kilo Gateway 4.00 20.00 8.00 1.1M Unverified. The source page shows one price per model, not this seller's: listed, not designated cheapest
6 OpenAIvia LLM API 4.00 20.00 8.00 – Unconfirmed. Last checked 18 October 2026: the last published value, not a confirmed one Unverified. The source page shows one price per model, not this seller's: listed, not designated cheapest
7 OpenAIvia Vercel AI Gateway 4.00 20.00 8.00 1.1M
8 Amazon Bedrockvia Kilo Gateway 4.00 20.00 8.00 1.1M Unverified. The source page shows one price per model, not this seller's: listed, not designated cheapest
9 Amazon Bedrockvia Vercel AI Gateway 4.00 20.00 8.00 1.1M
10 Azurevia Eden AI 4.00 20.00 8.00 922k Unverified. No public page for this offer: listed, not designated cheapestPrice drop observed: The blended price is 29% lower than before this drop; possibly temporary. · Price drop observed since Sep 23, 2026
11 Azurevia Kilo Gateway 4.00 20.00 8.00 1.1M Unverified. The source page shows one price per model, not this seller's: listed, not designated cheapest
12 Azurevia LLM API 4.00 20.00 8.00 – Unconfirmed. Last checked 18 October 2026: the last published value, not a confirmed one Unverified. The source page shows one price per model, not this seller's: listed, not designated cheapest
13 NEAR AIhosted APISold by a provider other than the lab that made the model. 4.00 20.00 8.00 1.1M
14 Novitavia LLM API 4.00 20.00 8.00 – Unconfirmed. Last checked 18 October 2026: the last published value, not a confirmed one Unverified. The source page shows one price per model, not this seller's: listed, not designated cheapest
15 Abacus RouteLLM 4.00 20.00 8.00 1M United States Unverified. No public page for this offer: listed, not designated cheapest
16 FastRouter 4.00 20.00 8.00 1.1M Unverified. Neither seller nor price found on its page for 72 hours: listed, not designated cheapest
17 Martian 4.00 20.00 8.00 – worldwide Unverified. Neither seller nor price found on its page for 72 hours: listed, not designated cheapest
18 Nous Portal 4.00 20.00 8.00 1.1M Unverified. Neither seller nor price found on its page for 72 hours: listed, not designated cheapest
19 OrcaRouter 4.00 20.00 8.00 1.1M Unverified. Neither seller nor price found on its page for 72 hours: listed, not designated cheapest
20 RedPill 4.00 20.00 8.00 272k Price drop observed: The blended price is 57% lower than before this drop; possibly temporary. · Price drop observed since Oct 26, 2026
21 ZenMux 4.00 20.00 8.00 1.1M prompt up to 272K tokens: up to 272K: $4.00 / $20.00; above that: $8.00 / $30.00 (Input / Output, per million tokens)
22 OpenAIvia LLM Gateway 4.00 20.00 8.00 – 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.
23 Azurevia LLM Gateway 4.00 20.00 8.00 – 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.
24 OpenAIvia Requesty 4.00 20.00 8.00 1.1M Fee 5%: Requesty adds a 5% markup (read on requesty.ai/pricing on Oct 30). Offers are ranked with this fee included.prompt up to 272K (271,999) tokens: up to 272K (271,999): $4.00 / $20.00; above that: $8.00 / $30.00 (Input / Output, per million tokens)
25 Azurevia Requesty 4.00 20.00 8.00 1.1M United States Fee 5%: Requesty adds a 5% markup (read on requesty.ai/pricing on Oct 30). Offers are ranked with this fee included.prompt up to 272K (271,999) tokens: up to 272K (271,999): $4.00 / $20.00; above that: $8.00 / $30.00 (Input / Output, per million tokens)

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

    $4.00

    NanoGPT

    in
    $2.00
    out
    $10.00
    Context
    1.1M

    No training on promptsBelow the lab's list price: Resold below the lab's list price (−50% vs lab list price), without a declared discount.

  • Glama

    $5.63

    Glama

    in
    $2.50
    out
    $15.00
    Context
    1.1M

    No training on promptsUnverified. No public page for this offer: listed, not designated cheapestBelow the lab's list price: Resold below the lab's list price (−30% vs lab list price), without a declared discount.backend 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
  • OpenAI

    $8.00

    OpenAI

    in
    $4.00
    out
    $20.00
    Context
    –

    No training on promptsprompt up to 272K tokens: up to 272K: $4.00 / $20.00; above that: $8.00 / $30.00 (Input / Output, per million tokens)

  • OpenAI

    $8.00

    Eden AI

    in
    $4.00
    out
    $20.00
    Context
    1.1M

    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
  • OpenAI

    $8.00

    Kilo Gateway

    in
    $4.00
    out
    $20.00
    Context
    1.1M

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

  • OpenAI

    $8.00

    LLM API

    in
    $4.00
    out
    $20.00
    Context
    –

    No training on promptsUnconfirmed. Last checked 18 October 2026: the last published value, not a confirmed oneUnverified. The source page shows one price per model, not this seller's: listed, not designated cheapest

  • OpenAI

    $8.00

    Vercel AI Gateway

    in
    $4.00
    out
    $20.00
    Context
    1.1M

    No training on prompts

  • Kilo Gateway

    in
    $4.00
    out
    $20.00
    Context
    1.1M

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

  • Vercel AI Gateway

    in
    $4.00
    out
    $20.00
    Context
    1.1M

    No training on prompts

  • Azure

    $8.00

    Eden AI

    in
    $4.00
    out
    $20.00
    Context
    922k

    Prompts may be used for trainingUnverified. No public page for this offer: listed, not designated cheapestPrice drop observed: The blended price is 29% lower than before this drop; possibly temporary. · Price drop observed since Sep 23, 2026

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

    $8.00

    Kilo Gateway

    in
    $4.00
    out
    $20.00
    Context
    1.1M

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

  • Azure

    $8.00

    LLM API

    in
    $4.00
    out
    $20.00
    Context
    –

    No training on promptsUnconfirmed. Last checked 18 October 2026: the last published value, not a confirmed oneUnverified. The source page shows one price per model, not this seller's: listed, not designated cheapest

  • NEAR AI

    $8.00

    hosted APISold by a provider other than the lab that made the model.

    in
    $4.00
    out
    $20.00
    Context
    1.1M

    No training on prompts

  • Novita

    $8.00

    LLM API

    in
    $4.00
    out
    $20.00
    Context
    –

    No training on promptsUnconfirmed. Last checked 18 October 2026: the last published value, not a confirmed oneUnverified. The source page shows one price per model, not this seller's: listed, not designated cheapest

  • Abacus RouteLLM

    in
    $4.00
    out
    $20.00
    Context
    1M

    No training on promptsUnited StatesUnverified. No public page for this offer: listed, not designated cheapest

    Seller's site: Abacus RouteLLM (opens in a new tab)No public price page for this model
  • FastRouter

    in
    $4.00
    out
    $20.00
    Context
    1.1M

    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.

  • Martian

    $8.00

    Martian

    in
    $4.00
    out
    $20.00
    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.

  • Nous Portal

    in
    $4.00
    out
    $20.00
    Context
    1.1M

    Prompts may be used for trainingUnverified. 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.

  • OrcaRouter

    in
    $4.00
    out
    $20.00
    Context
    1.1M

    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.

  • RedPill

    $8.00

    RedPill

    in
    $4.00
    out
    $20.00
    Context
    272k

    Training terms not publishedPrice drop observed: The blended price is 57% lower than before this drop; possibly temporary. · Price drop observed since Oct 26, 2026

  • ZenMux

    $8.00

    ZenMux

    in
    $4.00
    out
    $20.00
    Context
    1.1M

    Prompts may be used for trainingprompt up to 272K tokens: up to 272K: $4.00 / $20.00; above that: $8.00 / $30.00 (Input / Output, per million tokens)

  • OpenAI

    $8.00

    LLM Gateway

    in
    $4.00
    out
    $20.00
    Context
    –

    No training on promptsFee 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.

  • Azure

    $8.00

    LLM Gateway

    in
    $4.00
    out
    $20.00
    Context
    –

    No training on promptsFee 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.

  • OpenAI

    $8.00

    Requesty

    in
    $4.00
    out
    $20.00
    Context
    1.1M

    Prompts may be used for trainingFee 5%: Requesty adds a 5% markup (read on requesty.ai/pricing on Oct 30). Offers are ranked with this fee included.prompt up to 272K (271,999) tokens: up to 272K (271,999): $4.00 / $20.00; above that: $8.00 / $30.00 (Input / Output, per million tokens)

  • Azure

    $8.00

    Requesty

    in
    $4.00
    out
    $20.00
    Context
    1.1M

    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.prompt up to 272K (271,999) tokens: up to 272K (271,999): $4.00 / $20.00; above that: $8.00 / $30.00 (Input / Output, per million tokens)

Show all 56 offers

5 flex or batch offers 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. NanoGPT$270.00per month
  2. OpenAI$540.00per month+$270.00 vs the cheapest
  3. Amazon Bedrock$540.00per month+$270.00 vs the cheapest

Compare GPT-5.6 Sol with

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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=openai/gpt-5.6-sol
MCP server
claude mcp add --transport http inferindex https://mcp.inferindex.dev/mcp

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