This model was retired on 2027-05-15. The pricing below is the last-known rate, kept for migration reference.
GPT 5.1 (2025-11-13)Deprecated
VisionTool useReasoningPrompt cachingStructured outputWeb search
Context
272K
Max output
128K
Serving providers
2
Cheapest input
$1.25 /1M
Prices are on-demand list rates. Enterprise commitments (committed-use discounts, provisioned throughput, negotiated rates) can be materially lower.
Benchmarks
independent evaluations · source: ARC PrizeIndividual benchmarks · click a row for effort variants
| Benchmark | Best score | Effort | Cost / task | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ARC-AGI-2 | 18% | high | $1.17 | |||||||||||||||||||||
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Pricing by serving provider
last-known · per 1M tokens · click a provider to expand| Serving provider | Input /1M | Output /1M | Endpoints | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Azure | $1.25 | $10.00 | 1 | |||||||||||||||||||||
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| OpenAI | $1.25 | $10.00 | 1 | |||||||||||||||||||||
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Price history
input + output $/1M since we started tracking Input Output
Cost calculator
estimate your monthly spend on this model$1,050
estimated / month
Model IDs
copy the exact identifier for your platformazure/gpt-5.1-2025-11-13gpt-5.1-2025-11-13
Frequently asked questions
GPT 5.1 (2025-11-13) pricing, context and availabilityIs GPT 5.1 (2025-11-13) still available?
GPT 5.1 (2025-11-13) was retired on 2027-05-15. The pricing on this page is the last-known rate, kept for migration reference.
How much did GPT 5.1 (2025-11-13) cost?
GPT 5.1 (2025-11-13)'s last-known pricing, before it was retired on 2027-05-15, was $1.25 per 1M input tokens and $10.00 per 1M output tokens.
What was the context window of GPT 5.1 (2025-11-13)?
GPT 5.1 (2025-11-13) had a 272K token context window and could return up to 128K output tokens.
What could GPT 5.1 (2025-11-13) do?
GPT 5.1 (2025-11-13) supported image input (vision), tool use, reasoning, prompt caching, structured output and web search.
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