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ModelsOpenAIGPT-6.1 Sol Pro

GPT-6.1 Sol Pro

openai/gpt-6.1-sol-pro1.1M 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.
$4.20
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.
$24.00
Offers
15
Providers
5

Cheapest right now

NanoGPT

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

1.1M

$4.00 blended / 1M tokens

No change7D
in
$2.00
out
$10.00
Cached input
$0.10
Go to offer Go to offer at NanoGPT (opens in a new tab)via NanoGPT

GPT-6.1 Sol Pro costs from $4.00 per million tokens (at a 3:1 input:output mix): the lowest current price, at 3 providers, checked on ; 15 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.

Offers not counted in cheapest, median or most expensive (9)

  • $4.00 · OpenAI via Kilo Gateway · cannot be designated the cheapest
  • $4.00 · Azure via Kilo Gateway · cannot be designated the cheapest
  • $4.00 · Glama via Glama · cannot be designated the cheapest
  • $4.00 · Nous Portal via Nous Portal · cannot be designated the cheapest
  • $4.40 · Azure via Kilo Gateway · cannot be designated the cheapest
  • $4.40 · Azure via Kilo Gateway · cannot be designated the cheapest
  • $8.00 · OpenAI via Kilo Gateway · cannot be designated the cheapest
  • $8.00 · OpenAI via OpenRouter · priority tier
  • $24.00 · OpenAI 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$4.00, Azure–
2026-10-03$4.00, Azure–
2026-10-04$4.00, Azure–
2026-10-05$4.00, Azure–
2026-10-06$4.00, OpenAI–
2026-10-07$4.00, OpenAI–
2026-10-08$4.00, OpenAI–
2026-10-09$4.00, OpenAI–
2026-10-10$4.00, OpenAI–
2026-10-11$4.00, OpenAI–
2026-10-12$4.00, OpenAI–
2026-10-13$4.00, OpenAI–
2026-10-14$4.00, OpenAI–
2026-10-15$4.00, OpenAI–
2026-10-16$4.00, OpenAI–
2026-10-17$4.00, OpenAI–
2026-10-18$4.00, OpenAI–
2026-10-19$4.00, OpenAI–
2026-10-20$4.00, OpenAI–
2026-10-21$4.00, OpenAI–
2026-10-22$4.00, OpenAI–
2026-10-23$4.00, OpenAI–
2026-10-24$4.00, OpenAI–
2026-10-25$4.00, NanoGPT–
2026-10-26$4.00, NanoGPT–
2026-10-27$4.00, NanoGPT–
2026-10-28$4.00, NanoGPT–
2026-10-29$4.00, NanoGPT–
2026-10-30$4.00, NanoGPT–
2026-10-31$4.00, NanoGPT–

Cheapest offer

Offers

15 of 15 offers

Offers for GPT-6.1 Sol Pro, 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
Go to offer at NanoGPT (opens in a new tab)
2 OpenAIvia Kilo Gateway 2.00 10.00 4.00 1.1M Unverified. No public page for this offer: listed, not designated cheapest
: Kilo Gateway (opens in a new tab). No public price page for this model
3 Azurevia Kilo Gateway 2.00 10.00 4.00 1.1M Unverified. No public page for this offer: listed, not designated cheapest
: Kilo Gateway (opens in a new tab). No public price page for this model
4 Glama 2.00 10.00 4.00 1.1M Unverified. No public page for this offer: listed, not designated cheapest
: Glama (opens in a new tab). No public price page for this model
5 Nous Portal 2.00 10.00 4.00 1.1M Unverified. Neither seller nor price found on its page for 72 hours: listed, not designated cheapest
See pricing at Nous Portal (opens in a new tab)
6 OpenAIvia OpenRouter 2.00 10.00 4.00 1.1M 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.prompt up to 272K tokens: up to 272K: $2.00 / $10.00; above that: $4.00 / $15.00 (Input / Output, per million tokens)
Go to offer at OpenRouter (opens in a new tab)
7 Azurevia OpenRouter 2.00 10.00 4.00 1.1M 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.prompt up to 272K tokens: up to 272K: $2.00 / $10.00; above that: $4.00 / $15.00 (Input / Output, per million tokens)
Go to offer at OpenRouter (opens in a new tab)
8 Azurevia Kilo Gateway 2.20 11.00 4.40 1.1M European Union Unverified. No public page for this offer: listed, not designated cheapest
: Kilo Gateway (opens in a new tab). No public price page for this model
9 Azurevia Kilo Gateway 2.20 11.00 4.40 1.1M United States Unverified. No public page for this offer: listed, not designated cheapest
: Kilo Gateway (opens in a new tab). No public price page for this model
10 Azurevia OpenRouter 2.20 11.00 4.40 1.1M European Union 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.prompt up to 272K tokens: up to 272K: $2.20 / $11.00; above that: $4.40 / $16.50 (Input / Output, per million tokens)
Go to offer at OpenRouter (opens in a new tab)
11 Azurevia OpenRouter 2.20 11.00 4.40 1.1M United States 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.prompt up to 272K tokens: up to 272K: $2.20 / $11.00; above that: $4.40 / $16.50 (Input / Output, per million tokens)
Go to offer at OpenRouter (opens in a new tab)
12 OpenAIvia Kilo Gateway 4.00 20.00 8.00 1.1M Unverified. No public page for this offer: listed, not designated cheapestPriority tier: A different service tier, with its own speed and availability conditions.
: Kilo Gateway (opens in a new tab). No public price page for this model
13 OpenAIvia OpenRouter 4.00 20.00 8.00 1.1M Priority tier: A different service tier, with its own speed and availability conditions.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.prompt up to 272K tokens: up to 272K: $4.00 / $20.00; above that: $8.00 / $30.00 (Input / Output, per million tokens)
Go to offer at OpenRouter (opens in a new tab)
14 OpenAIvia Kilo Gateway 12.00 60.00 24.00 1.1M Unverified. No public page for this offer: listed, not designated cheapest
: Kilo Gateway (opens in a new tab). No public price page for this model
15 OpenAIvia OpenRouter 12.00 60.00 24.00 1.1M 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.prompt up to 272K tokens: up to 272K: $12.00 / $60.00; above that: $24.00 / $90.00 (Input / Output, per million tokens)
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

    $4.00

    NanoGPT

    in
    $2.00
    out
    $10.00
    Context
    1.1M

    No training on prompts

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

  • OpenAI

    $4.00

    Kilo Gateway

    in
    $2.00
    out
    $10.00
    Context
    1.1M

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

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

  • Azure

    $4.00

    Kilo Gateway

    in
    $2.00
    out
    $10.00
    Context
    1.1M

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

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

  • Glama

    $4.00

    Glama

    in
    $2.00
    out
    $10.00
    Context
    1.1M

    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

  • Nous Portal

    $4.00

    Nous Portal

    in
    $2.00
    out
    $10.00
    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.

    See pricing See pricing at Nous Portal (opens in a new tab)via Nous Portal

  • OpenAI

    $4.00

    OpenRouter

    in
    $2.00
    out
    $10.00
    Context
    1.1M

    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.prompt up to 272K tokens: up to 272K: $2.00 / $10.00; above that: $4.00 / $15.00 (Input / Output, per million tokens)

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

  • Azure

    $4.00

    OpenRouter

    in
    $2.00
    out
    $10.00
    Context
    1.1M

    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.prompt up to 272K tokens: up to 272K: $2.00 / $10.00; above that: $4.00 / $15.00 (Input / Output, per million tokens)

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

  • Azure

    $4.40

    Kilo Gateway

    in
    $2.20
    out
    $11.00
    Context
    1.1M

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

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

  • Azure

    $4.40

    Kilo Gateway

    in
    $2.20
    out
    $11.00
    Context
    1.1M

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

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

  • Azure

    $4.40

    OpenRouter

    in
    $2.20
    out
    $11.00
    Context
    1.1M

    No training on promptsEuropean UnionFee 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.prompt up to 272K tokens: up to 272K: $2.20 / $11.00; above that: $4.40 / $16.50 (Input / Output, per million tokens)

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

  • Azure

    $4.40

    OpenRouter

    in
    $2.20
    out
    $11.00
    Context
    1.1M

    No training on promptsUnited StatesFee 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.prompt up to 272K tokens: up to 272K: $2.20 / $11.00; above that: $4.40 / $16.50 (Input / Output, per million tokens)

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

  • OpenAI

    $8.00

    Kilo Gateway

    in
    $4.00
    out
    $20.00
    Context
    1.1M

    Training terms not publishedUnverified. No public page for this offer: listed, not designated cheapestPriority tier: A different service tier, with its own speed and availability conditions.

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

  • OpenAI

    $8.00

    OpenRouter

    in
    $4.00
    out
    $20.00
    Context
    1.1M

    No training on promptsPriority tier: A different service tier, with its own speed and availability conditions.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.prompt up to 272K tokens: up to 272K: $4.00 / $20.00; above that: $8.00 / $30.00 (Input / Output, per million tokens)

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

  • OpenAI

    $24.00

    Kilo Gateway

    in
    $12.00
    out
    $60.00
    Context
    1.1M

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

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

  • OpenAI

    $24.00

    OpenRouter

    in
    $12.00
    out
    $60.00
    Context
    1.1M

    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.prompt up to 272K tokens: up to 272K: $12.00 / $60.00; above that: $24.00 / $90.00 (Input / Output, per million tokens)

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

3 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$270.00per month+$0.00 vs the cheapest
  3. Azure$270.00per month+$0.00 vs the cheapest

Compare GPT-6.1 Sol Pro with

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More from OpenAI

All OpenAI 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=openai/gpt-6.1-sol-pro
MCP server
claude mcp add --transport http inferindex https://mcp.inferindex.dev/mcp

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