GPT-5.6 Sol
GPT-5.6 SolAlternatives?
CheaperClaude Haiku 5.5max+77%-18%$0.21Context: 1.05M → 1M+6BetterGPT-6 Lunamax+16%-74%$0.068Function calling only with none · Chat Completions+3
OpenDeepSeek V4 Pro 0813max+48%+159%$0.67Context: 1.05M → 1M+6
CheaperGemini 3.1 Pro Previewhigh+65%-44%$2 / $12Context: 1.05M → 1M+1CheaperGPT-5.2 (2025-12-11)xhigh+55%-40%$1.75 / $14Context: 1.05M → 400KClaude Haiku 5.5max+77%-18%$0.21Context: 1.05M → 1M+6Gemini 3.1 Pro Previewhigh+65%-44%$2 / $12Context: 1.05M → 1M+1GPT-5.2 (2025-12-11)xhigh+55%-40%$1.75 / $14Context: 1.05M → 400KGPT-5.4 (2026-03-05)xhigh+55%-30%$2.50 / $15GPT-5.4 Nano (2026-03-17)xhigh+45%-94%$0.20 / $1.25Context: 1.05M → 400KGPT-6 Lunamax+16%-74%$0.068Function calling only with none · Chat Completions+3GPT-5.6 Lunamax+39%-32%$0.18Claude Haiku 5.5max+77%-18%$0.21Context: 1.05M → 1M+6DeepSeek V4.1 Flash 1017maxOpen+48%same$0.26Context: 1.05M → 1M+5DeepSeek V4 Pro 0813maxOpen+48%+159%$0.67Context: 1.05M → 1M+6DeepSeek V4 Pro 0813maxOpen+48%+159%$0.67Context: 1.05M → 1M+6DeepSeek V4.1 Flash 1017maxOpen+48%same$0.26Context: 1.05M → 1M+5
Kimi K3highOpen+19%-25%$3 / $15Context: 1.05M → 1M+4
GLM 5.3maxOpen+19%+669%$2.01Context: 1.05M → 1M+5GLM 5.2maxOpen-29%+392%$1.28Context: 1.05M → 1M+1GPT-6 Astramax×2.4+1,150%$3.26Monitoring can return HTTP 403+2GPT-6.1 Solmax×2.2+178%$0.72Remove unsupported parameters+5GPT-5.5 Proxhigh×2—$30 / $180GPT-5.4 Pro (2026-03-05)+90%—$30 / $180No strict JSONGPT-6 Solmax+81%+301%$1.04GPT-5 Pro (2025-10-06)+55%—$15 / $120Context: 1.05M → 400KGPT-6 Lunamax+16%-74%$0.068Function calling only with none · Chat Completions+3o3 (2025-04-16)low+16%—$2 / $8Context: 1.05M → 200KAll OpenAI models →History
3 versionsBenchmarks
in Chat & KnowledgeFAQ
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 $0.26 at low 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?›
#50 of 336 in Chat & Knowledge, #55 of 134 in Coding, #43 of 135 in Agents & Tool Use, #24 of 197 in Writing & Language, #13 of 125 in Vision & Documents. Strongest at: Reasoning, Science, Long context, Knowledge, Vision.
Is GPT-5.6 Sol better than Gemini 4 Argon?›
On Chess Puzzles, GPT-5.6 Sol scores 59 vs 59 — about the same. It is 84% 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 DeepSeek V4 Pro 0813.
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?›
Claude Haiku 5.5 (cheaper), GPT-6 Luna (better), DeepSeek V4 Pro 0813 (open weights).