GPT-5.6 Sol Pro pricing.

Prices checked

GPT-5.6 Sol Pro costs $2 in and $10 out per million tokens from OpenAI; the cheapest price is $4 at NanoGPT, checked .

OpenAI's own price

OpenAI

$4/M tokens

$2 in · $10 out

354% above the typical price of the 392 text models we track.

Cheapest price

NanoGPT

$4/M tokens

$2 in · $10 out

Nobody sells it for less than OpenAI with a reason we can point at.

Web search from this model costs $10 per 1,000 searches, plus its tokens; dedicated search APIs from $1

tool callingreads imagesreasoningstructured output1.1M contextreleased 9 Jul 2026

Every provider selling GPT-5.6 Sol Pro

  1. 1

    NanoGPT

    Same as maker

    $2 in · $10 out

    $4/M tokens
  2. 2

    OpenAI

    Maker's price

    $2 in · $10 out

    $4/M tokens
  3. 3

    OpenRouter

    Costs more

    $4 in · $20 out

    $8/M tokens
  4. 4

    Kilo Gateway

    Costs more

    $4 in · $20 out

    $8/M tokens
  5. 5

    $4 in · $20 out

    $8/M tokens
  6. 6

    Nous Portal

    Costs more

    $4 in · $20 out

    $8/M tokens
  7. 7

    LLMTR

    Costs more

    $4 in · $20 out

    $8/M tokens
  8. 8

    AI/ML API

    Costs more

    $4.23 in · $21.16 out

    $8.46/M tokens
  9. 9

    Prime Inference

    Costs more

    $5 in · $30 out

    $11.25/M tokens
  10. 10

    302.AI

    Costs more

    $5 in · $30 out

    $11.25/M tokens

Something else wrong?

What it costs for your work
pages a month
$1.80

A month at OpenAI's own price

$1.80

A month at NanoGPT, the cheapest

$0

What you save

A page is about 600 tokens in and 60 out, a support reply 200 in and 300 out, an email 150 in and 250 out. Nothing else is counted: no cache discount, no batch rate, no free tier.

How we count

Prices are per million tokens. The big number on each row is blended 3 in : 1 out, the way most work uses a model. A price below OpenAI's own is listed as cheapest only when the provider says why.

Same as maker
Sold by someone else at the price the maker charges.
Maker's price
What the lab that trained the model charges on its own API. Every other row is measured against it.
Costs more
Sold by someone else for more than the maker charges.

Similar models

Models from other labs that do what GPT-5.6 Sol Pro does, cheapest first. Each percentage is against GPT-5.6 Sol Pro's cheapest price, $4 per M tokens.

Frequently asked

Who sells GPT-5.6 Sol Pro cheapest?
No provider sells GPT-5.6 Sol Pro below OpenAI's own price for a reason it publishes. 10 providers sell it at that price or above, and every one of them is on this page.
Is GPT-5.6 Sol Pro open weights?
No. OpenAI keeps the weights, so every price on this page is OpenAI's own or a resale of it. A price below OpenAI's here needs a published reason, or it is listed and not ranked.
How much context does GPT-5.6 Sol Pro hold?
1,050,000 tokens in one call, which is about 1.1M, and it can call your own functions.
How does GPT-5.6 Sol Pro compare with the rest of the market?
At $4 per million tokens, OpenAI's own price is 354% above the typical $0.88 across the 392 text models we track.

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