This model was retired on 2026-10-21. The pricing below is the last-known rate, kept for migration reference.
Context
200K
Max output
100K
Serving providers
5
Cheapest input
$15.00 /1M
Prices are on-demand list rates. Enterprise commitments (committed-use discounts, provisioned throughput, negotiated rates) can be materially lower.
Benchmarks
independent evaluations · source: Artificial AnalysisHeadline indices
Intelligence Index
23.9
of 100
Coding Index
39.7
of 100
Individual benchmarks · click a row for effort variants
| Benchmark | Best score | Effort | Cost / task | |
|---|---|---|---|---|
| CritPt | 0% | default | — | |
| GPQA Diamond | 75% | default | — | |
| Humanity's Last Exam | 7% | default | — | |
| IFBench | 70% | default | — | |
| LiveCodeBench | 68% | default | — | |
| Long-Context Reasoning | 63% | default | — | |
| MMLU-Pro | 84% | default | — | |
| Omniscience | -11.1 | default | — | |
| Omniscience Accuracy | 0.3 | default | — | |
| Omniscience Non Hallucination | 0.3 | default | — | |
| SciCode | 36% | default | — | |
| TerminalBench Hard | 13% | default | — | |
| τ²-bench | 63% | default | — |
Pricing by serving provider
last-known · per 1M tokens · click a provider to expand| Serving provider | Input /1M | Output /1M | Endpoints | ||||||||||||||||||||||||||
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| Azure | $15.00 | $60.00 | 1 | ||||||||||||||||||||||||||
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| OpenAI | $15.00 | $60.00 | 1 | ||||||||||||||||||||||||||
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| Replicate | $15.00 | $60.00 | 1 | ||||||||||||||||||||||||||
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| Vercel AI Gateway | $15.00 | $60.00 | 1 | ||||||||||||||||||||||||||
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| OpenRouter | $15.00 | $60.00 | 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$7,800
estimated / month
Model IDs
copy the exact identifier for your platformazure/o1o1replicate/openai/o1vercel_ai_gateway/openai/o1openai/o1
Frequently asked questions
o1 pricing, context and availabilityIs o1 still available?
o1 was retired on 2026-10-21. The pricing on this page is the last-known rate, kept for migration reference.
How much did o1 cost?
o1's last-known pricing, before it was retired on 2026-10-21, was $15.00 per 1M input tokens and $60.00 per 1M output tokens.
What was the context window of o1?
o1 had a 200K token context window and could return up to 100K output tokens.
What could o1 do?
o1 supported image input (vision), tool use, reasoning, prompt caching and structured output.
Other OpenAI models
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