GPT-5.6 Sol
GPT-5.6 SolAlternatives?
CheaperGPT-6.1 Solmax+5%-10%$0.72Remove unsupported parameters+5
OpenMuse Spark Openxhighsame+4%$0.84Context: 1.05M → 1M+2Lower effortSame modelmediumsame-37%$0.50
CheaperClaude Opus 5.5low+3%-32%$0.55Context: 1.05M → 1M+6
CheaperGemini 3.8 Flashlow+3%-81%*$0.75 / $3.75Context: 1.05M → 1M+2GPT-6.1 Solmax+5%-10%$0.72Remove unsupported parameters+5Claude Opus 5.5low+3%-32%$0.55Context: 1.05M → 1M+6Gemini 3.8 Flashlow+3%-81%*$0.75 / $3.75Context: 1.05M → 1M+2GPT-6 Solxhighsame-36%$0.52
DeepSeek V4.1 Flash 1017maxOpen-1%-68%$0.26Context: 1.05M → 1M+5GPT-6.1 Solmedium+3%-74%$0.21Remove unsupported parameters+5Claude Opus 5.5low+3%-32%$0.55Context: 1.05M → 1M+6GPT-6 Astralow+3%same$0.82Monitoring can return HTTP 403+2Gemini 3.8 Flashmedium+3%+15%*$0.93Context: 1.05M → 1M+2Claude Opus 5xhigh+3%+504%$4.88Context: 1.05M → 1MMuse Spark OpenxhighOpensame+4%$0.84Context: 1.05M → 1M+2DeepSeek V4.1 Flash 1017maxOpen-1%-68%$0.26Context: 1.05M → 1M+5
Kimi K3maxOpen-2%+148%$2.00Context: 1.05M → 1M+4
Qwen3.8 FlashthinkingOpen-3%-54%$0.37Context: 1.05M → 262K+6Kimi K2.6thinkingOpen-3%same$0.80Context: 1.05M → 256KGPT-6 Astrahigh+6%+114%$1.73Monitoring can return HTTP 403+2GPT-6.1 Solhigh+4%-61%$0.32Remove unsupported parameters+5GPT-6 Solhighsame-54%$0.37GPT-5.5highsame+91%$1.54Prompts with >272K input tokensGPT-5.6 Terrahigh-3%-58%$0.34Prompts with >272K input tokensGPT-5.3 Codexxhigh-4%—$1.75 / $14Context: 1.05M → 400K+1GPT-5.6 Lunahigh-5%-95%$0.044GPT-6 Lunahigh-5%-96%$0.029Function calling only with none · Chat Completions+3All OpenAI models →History
3 versionsBenchmarks
in Vision & DocumentsFAQ
How much does GPT-5.6 Sol cost?›
$4 per 1M input tokens and $20 per 1M output tokens; cached input $0.40 per 1M. A typical benchmark task costs about $0.81 at high effort.
Is GPT-5.6 Sol free to use?›
There is no free API; the cheapest paid price is $4 per 1M input tokens.
How good is GPT-5.6 Sol, and what is it best at?›
#21 of 334 in Chat & Knowledge, #29 of 132 in Coding, #30 of 133 in Agents & Tool Use, #12 of 195 in Writing & Language, #11 of 124 in Vision & Documents. Strongest at: Coding, Agents & work tasks, Reasoning, Science, Long context, Knowledge, Instructions, Vision.
Is GPT-5.6 Sol better than Claude Opus 5?›
On MMMU-Pro (vision), GPT-5.6 Sol scores 83.4 vs 84.7 — lower. It is 86% cheaper per task.
How can I use GPT-5.6 Sol?›
Through the API of Amazon Bedrock, Azure, OpenAI.
What is the context window of GPT-5.6 Sol?›
1.05M tokens, with up to 128K output tokens.
When was GPT-5.6 Sol released? Is there a newer version?›
Released 2026-07-09. It has been superseded by GPT-6 Sol.
Is GPT-5.6 Sol open source?›
No, GPT-5.6 Sol is a closed model available through an API. The closest open-weights option here is Muse Spark Open.
Can GPT-5.6 Sol read images?›
It accepts text and images, PDF files as input.
What is GPT-5.6 Sol?›
GPT-5.6 Sol is a closed language model from OpenAI, released Jul 2026, the successor to GPT-4.
What are the best alternatives to GPT-5.6 Sol?›
GPT-6.1 Sol (cheaper), Muse Spark Open (open weights).