GPT-5.6 Sol
GPT-5.6 SolAlternatives?
CheaperKimi K3unstatedOpensame-25%$3 / $15Context: 1.05M → 1M+4
OpenGLM 5.3maxsame+69%$2.01Context: 1.05M → 1M+5Lower effortSame modelhighsame-32%$0.81CheaperGPT-5.4mediumsame-30%$2.50 / $15
CheaperMiMo v2.6 ProthinkingOpensame-89%$0.13Context: 1.05M → 1M+4Kimi K3unstatedOpensame-25%$3 / $15Context: 1.05M → 1M+4GPT-5.4mediumsame-30%$2.50 / $15MiMo v2.6 ProthinkingOpensame-89%$0.13Context: 1.05M → 1M+4
Muse Spark 1.1high-69%-75%$1.25 / $4.25Context: 1.05M → 1M+2Muse Spark 1.3high-77%-75%$1.25 / $4.25Context: 1.05M → 1M+6GLM 5.3maxOpensame+69%$2.01Context: 1.05M → 1M+5Kimi K3unstatedOpensame-25%$3 / $15Context: 1.05M → 1M+4MiMo v2.6 ProthinkingOpensame-89%$0.13Context: 1.05M → 1M+4
DeepSeek V4 Pro 0813highOpen-79%-75%$1.32 / $3.96Context: 1.05M → 1M+6GLM 5.2maxOpen-81%+24%$1.47Context: 1.05M → 1M+1GPT-6 Astrahighsame+46%$1.73Monitoring can return HTTP 403+2GPT-5.5xhighsame+122%$2.63Prompts with >272K input tokensGPT-5.4xhighsame—$2.50 / $15GPT-5.2medium-87%—$1.75 / $14Context: 1.05M → 400KGPT OSS 120BunstatedOpen-228%—$0.03 / $0.15Context: 1.05M → 131K+1GPT-6.1 Solmediumn/a—$0.21Remove unsupported parameters+5GPT-6 Lunamediumn/a—$0.017Function calling only with none · Chat Completions+3GPT-6 Solmediumn/a—$0.25All OpenAI models →Benchmarks
in Writing & LanguageFAQ
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 $1.18 at xhigh 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?›
#17 of 334 in Chat & Knowledge, #26 of 132 in Coding, #30 of 133 in Agents & Tool Use, #12 of 195 in Writing & Language, #9 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 Fable 5?›
On Lech Mazur Short-Story, GPT-5.6 Sol scores 2.5 vs 2.9 — about the same.
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 It has been superseded by GPT-6 Sol.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 GLM 5.3.
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?›
Kimi K3 (cheaper), GLM 5.3 (open weights).