GPT-6 Sol

Sep 2026
GPT-6 Sol
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$0.13per task?
$2 / $10per 1M in / outcache $0.20
108 tok/sfirst token in 1.4 s?
1.05Mcontext

Alternatives?

History

3 versions
3131.53232.5Oct 26Release dateCritPt5.666.1
3131.53232.5Oct 26Release dateCritPt5.666.1

Benchmarks

in Chat & Knowledge
HealthBench Professional length-adjustedlab60.8
HealthBench length-adjustedlab53.2
HealthBench Hard length-adjustedlab30.1
HealthBench Consensus length-adjustedlab96.2

FAQ

How much does GPT-6 Sol cost?›

$2 per 1M input tokens and $10 per 1M output tokens; cached input $0.20 per 1M. A typical benchmark task costs about $0.13 at low effort.

Is GPT-6 Sol free to use?›

There is no free API; the cheapest paid price is $2 per 1M input tokens.

How good is GPT-6 Sol, and what is it best at?›

#63 of 334 in Chat & Knowledge, #39 of 132 in Coding, #31 of 133 in Agents & Tool Use, #38 of 195 in Writing & Language, #19 of 124 in Vision & Documents. Strongest at: Reasoning, Long context, Knowledge, Vision.

Is GPT-6 Sol better than GPT-5.1?›

On CritPt (physics), GPT-6 Sol scores 30.9 vs 4.9 — higher.

How can I use GPT-6 Sol?›

Through the API of Amazon Bedrock, Azure, OpenAI.

What is the context window of GPT-6 Sol?›

1.05M tokens, with up to 128K output tokens.

When was GPT-6 Sol released? Is there a newer version?›

Released 2026-09-22. It has been superseded by GPT-6.1 Sol.

Is GPT-6 Sol open source?›

No, GPT-6 Sol is a closed model available through an API. The closest open-weights option here is MiMo v2.6 Pro.

Can GPT-6 Sol read images?›

It accepts text and images, PDF files as input.

What is GPT-6 Sol?›

GPT-6 Sol is a closed language model from OpenAI, released Sep 2026, the successor to GPT-5.1.

What are the best alternatives to GPT-6 Sol?›

Claude Haiku 5.5 (cheaper), GPT-6 Luna (better), MiMo v2.6 Pro (open weights).