OpenAI: GPT-5.6 Sol
openai/gpt-5.6-sol
ReasoningToolsJSONVision
Intelligence
—
Design Elo
—
Speed
33
237th fastest
Latency
2.8s
first token
Input price
$5.00
277th cheapest
Context
1.1M
128K max out
How it compares
Faster than23%
of all ranked models
Cheaper than9%
of all ranked models
Overview
GPT-5.6 Sol is the flagship model in OpenAI's GPT-5.6 series. It is suited for complex reasoning, coding, and agentic workflows, and is particularly strong at command-line and multi-step coding tasks...
Providers & pricing (3)
| Provider | In $/M | Out $/M | Context | Uptime |
|---|---|---|---|---|
| OpenAI | $5.00 | $30.00 | 1.1M | 100% |
| OpenAI | $2.50 | $15.00 | 1.1M | 100% |
| OpenAI | $10.00 | $60.00 | 1.1M | 100% |
Specifications
Context window1.1M
Max output128K
Knowledge cutoffFeb 2026
Input modalitiesfile, image, text
Output modalitiestext
Prompt caching—
Cache read price$0.500/M
ModeratedYes
GPT-5.6 Sol FAQ
How much does GPT-5.6 Sol cost?
GPT-5.6 Sol costs $5.00 per million input tokens and $30.00 per million output tokens via OpenRouter, making it 277th cheapest of 303 paid models.
How fast is GPT-5.6 Sol?
GPT-5.6 Sol generates around 33 tokens per second with 2.8s time-to-first-token (p50), the 237th fastest tracked model.
What is GPT-5.6 Sol's context window?
GPT-5.6 Sol supports a 1.1M-token context window and can output up to 128K tokens. It accepts file, image, text input.