GPT-5.6 Sol Pro

openai/gpt-5.6-sol-pro · rates as of 2026-08-04 · Benchmarks · Plans · Calculator

GPT-5.6 Sol Pro is the same underlying model as [GPT-5.6 Sol](https://openrouter.ai/openai/gpt-5.6-sol), served with `reasoning.mode` set to `pro` for higher-quality responses on complex tasks. Learn more in OpenAI's docs: https://developers.openai.com/api/docs/guides/reasoning#reasoning-mode

Cheapest input

$/MTok · models.dev

Cheapest output

$30

$/MTok

Context

1.1M

tokens

Offers

2 sources

Offers

Same model, different listings. First-party, router, and aggregator rows stay separate so you can see the spread instead of a single blended number.

Source	Provider	Input	Output	Cache read	Context
models.devcheapestopenai/gpt-5.6-sol-pro	Kilo Gateway	$5	$30	$0.5	1.1M
OpenRouteropenai/gpt-5.6-sol-pro	OpenRouter	$5	$30	$0.5	1.1M

Capabilities

Reasoning
Tool calling
Structured output
Attachments
In: text
In: image
In: pdf
In: file
Out: text

Knowledge cutoff: 2026-02-16Released: 2026-07-09Family: gpt-sol

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