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GPT 5.5
by OpenAI · Language Models
Context 1050K tokensVisionReasoning / thinkingFunction calling
by OpenAI · Language Models
A new class of intelligence for coding and professional work. GPT-5.5 is OpenAI's flagship model for the most complex professional tasks, with stronger reasoning, higher reliability, and a 1.05M context window. Supports text and image input, tool calling, and configurable reasoning effort.
$6.475 in · $38.85 out / 1M
| Usage | Rate (USD) | Unit |
|---|---|---|
| Input tokens | $6.47 | per 1M tokens |
| Cached input (cache hit) | $0.65 | per 1M tokens |
| Output tokens | $38.85 | per 1M tokens |
TuneRouter live platform pricing · currency: USD · pre-deduction settled by actual usage
OpenAI-compatible · base URL https://api.tunerouter.com/v1/
curl https://api.tunerouter.com/v1/chat/completions \
-H "Authorization: Bearer $TUNEROUTER_API_KEY" \
-H "Content-Type: application/json" \
-d '{"model": "gpt-5.5", "messages": [{"role": "user", "content": "Hello!"}]}'Model ID: gpt-5.5 · works with OpenAI SDKs — just point base_url at api.tunerouter.com