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GPT-5.6 Sol — and what?

Pricing per million tokens, context window, capabilities — pulled from each provider's public docs. All 1 are available via the same AIgateway OpenAI-compatible endpoint; flip the model string to switch.

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GPT-5.6 Sol
openai/gpt-5.6-sol
Provider
OpenAI
Family
GPT-5
Modality
text
Context window
1,050,000 tok
Max output
128,000 tok
Released
2026-07-10
License
Proprietary
Input price
$5.00 /1M
Output price
$30.00 /1M
Tools
yes
Streaming
yes
Vision
yes
JSON mode
yes
Reasoning
yes
Prompt caching
Batch API
Try it
Open in playground →
GPT-5.6 Sol
openai/gpt-5.6-sol
Full spec →

GPT-5.6 Sol is OpenAI's frontier GPT-5.6 model for complex professional work, using the Responses API for reasoning and stateful context management.

Strengths
  • General-purpose chat
  • Long context
  • Tool use
Use cases
ChatbotsContent generationAgentic workflows

Compare with another

Claude Opus 5 vs GPT-5.6 Sol
anthropic/claude-opus-5 · openai/gpt-5.6-sol
Grok 4.5 vs GPT-5.6 Sol
xai/grok-4.5 · openai/gpt-5.6-sol
Kimi K3 vs GPT-5.6 Sol
moonshot/kimi-k3 · openai/gpt-5.6-sol
Gemini 3.6 Flash vs GPT-5.6 Sol
google/gemini-3.6-flash · openai/gpt-5.6-sol
GPT-5.6 Sol vs Claude Fable 5
openai/gpt-5.6-sol · anthropic/claude-fable-5
GPT-5.6 Sol vs DeepSeek V4 Pro
openai/gpt-5.6-sol · deepseek/deepseek-v4-pro
GPT-5.6 Sol vs Gemini 3.1 Pro
openai/gpt-5.6-sol · google/gemini-3.1-pro
GPT-5.6 Sol vs MiniMax M3
openai/gpt-5.6-sol · minimax/m3
GPT-5.6 Sol vs Kimi-K2.6
openai/gpt-5.6-sol · moonshot/kimi-k2.6