The Orchestrator › Models › OpenAI
OpenAI: GPT-5.1
GPT-5.1 is the latest frontier-grade model in the GPT-5 series, offering stronger general-purpose reasoning, improved instruction adherence, and a more natural conversational style compared to GPT-5. It uses adaptive reasoning...
Specifications
| Provider | OpenAI |
| Model ID | openai/gpt-5.1 |
| Context window | 400K tokens (400,000) |
| Modalities | text + image + file → text |
| Tokenizer | GPT |
| Router sources | OpenRouter, TrustedRouter, Cloudflare |
| Released | 2025-11-13 |
| Tracked since | 2026-11-14 |
| Popularity | Not in the ranked set |
| Reasoning | Supported |
Pricing (per million tokens)
| Variant | Source | API ID | Input | Output | Context |
|---|---|---|---|---|---|
| standard | OpenRouter | openai/gpt-5.1 | $1.25 | $10.00 | 400K |
| batch | OpenRouter | openai/gpt-5.1:batch | $0.625 | $5.00 | 400K |
| standard | TrustedRouter | openai/gpt-5.1 | $1.32 | $10.55 | 400K |
| standard | Cloudflare | openai/gpt-5.1 | $1.25 | $10.00 | — |
Recorded price history
| Date | Input / 1M | Output / 1M | Context |
|---|---|---|---|
| 2026-11-14 | $1.25 | $10.00 | — |
| 2026-11-14 | $1.32 | $10.55 | 400K |
| 2026-11-14 | $1.25 | $10.00 | 400K |
Capabilities
Vision (image input)File inputAgentic tool useStructured outputs256K+ context windowControllable reasoningNo content storage (attested)Zero data retention
Trust flags come from TrustedRouter's per-provider attestations.
Supported parameters
include_reasoning, max_completion_tokens, max_tokens, reasoning, reasoning_effort, response_format, seed, structured_outputs, tool_choice, tools, verbosity