o1 (2024-12-17)
API ID o1-2024-12-17
o1-2024-12-17 is an OpenAI model, released December 2024. It has a 200,000-token context window and up to 100,000 output tokens. It takes image input and supports function calling, structured outputs and reasoning. Standard price: from $15.00 input and from $60.00 output per 1M tokens.
- Status
- Deprecated
- Released
- December 2024
- Shutdown
- Oct 23, 2026
- Replacement
- GPT-5.6 Solgpt-5.6-sol
It stops serving on October 23, 2026. Recommended replacement: gpt-5.6-sol.
Free tier: Free for shared data, 1M tokens a day for Launch and Grow (250K for Build), in place when tracking began (October 12, 2026) (source) · All free models
Benchmarks
Scores as each source published themComparing with o1 Preview, the previous model in this line. A score is compared only with the same benchmark from the same source, at the same setting where both have it. Full comparison: prices, limits, features
Arena
| Arena | o1 (2024-12-17) | o1 Preview | Change | Rank | Date | Source |
|---|---|---|---|---|---|---|
TextBy category
| 1402 ±4 | 1389 ±5 | +13 | 157 of 415 27,807 votes | Oct 13, 2026 | source |
| Text: Coding | 1433 ±10 | 1415 ±9 | +18 within range | 180 of 410 3,973 votes | Oct 13, 2026 | source |
| Vision | 1193 ±11 | not rated | 96 of 165 3,694 votes | Oct 9, 2026 | source |
Rated as o1-2024-12-17; o1 Preview as o1-preview. Ratings come from people voting between two anonymous answers; Text and Vision are style-controlled, as on arena.ai. Data: Arena (arena.ai), CC BY 4.0.
Epoch AI
| Benchmark | o1 (2024-12-17) | o1 Preview | Change | Setting | Run | Source |
|---|---|---|---|---|---|---|
FrontierMath Tiers 1-3Other settings
| 14.7% | not run | high effort | Aug 28, 2026 | source | |
GPQA DiamondOther settings
| 76.8% | 50.3% | +26.5 pts | high effort (vs no setting) | Feb 13, 2025 | source |
MATH Level 5Other settings
| 94.7% | 81.6% | +13.1 pts | high effort (vs no setting) | Feb 13, 2025 | source |
OTIS Mock AIME 2024-2025Other settings
| 73.3% | 31.1% | +42.2 pts | high effort (vs no setting) | Jul 15, 2026 | source |
| SimpleQA Verified | 41.1% | not run | high effort | Aug 31, 2026 | source |
Run independently by Epoch AI. Data: Epoch AI, Capabilities & benchmarking (epoch.ai/benchmarks), CC BY.
On cloud platforms
All platform dates| Platform | Platform ID | State | Shutdown | Time left | Replacement | Source |
|---|---|---|---|---|---|---|
| Microsoft Foundryversion 2024-12-17 | o1 | Deprecated | Nov 19, 2026 | 35 days | GPT-5.6 Solgpt-5.6-sol | source |
Microsoft Foundry (version 2024-12-17) retires this model 27 days after OpenAI's own API.
Read daily from each platform's own pages. The shutdown date and countdown on this page use OpenAI's own date. Time left counts to 00:00 UTC on the shutdown date, which is the evening before in ET.
Aliases pointing here: o1 (in place when tracking began (October 7, 2026))
Features
Compare models| Feature | Value | Since | Source |
|---|---|---|---|
| Structured outputsThe model can be held to a JSON schema you supply, so every reply parses without retries or cleanup. | Supported | in place when tracking began (October 7, 2026) | source |
| Function callingAlso called tool use. You describe functions; the model replies with a function name and arguments for your code to run, then uses the result. | Supported | in place when tracking began (October 7, 2026) | source |
| Batch APISend many requests as one job that runs in the background, usually finished within 24 hours, at a lower price than live requests. | Supported | in place when tracking began (October 7, 2026) | source |
| Image inputImages such as screenshots, photos and charts can go in the prompt for the model to read. | Supported | in place when tracking began (October 7, 2026) | source |
| Reasoning / thinkingThe model can work through a problem step by step before it answers: usually better answers to hard questions, at the cost of more tokens and time. | Supported | in place when tracking began (October 7, 2026) | source |
| Fine-tuningYou can train your own version of the model on your examples through the company's API, then call it like any other model. | Not supported | in place when tracking began (October 7, 2026) | source |
| Context windowThe most the model can work with in one request, in tokens: your prompt, conversation history and files. A token is about three-quarters of an English word. | 200,000 tokens | in place when tracking began (October 7, 2026) | source |
| Max output tokensThe longest reply the model can write in one response, in tokens. A token is about three-quarters of an English word. | 100,000 tokens | in place when tracking began (October 7, 2026) | source |
Not published by OpenAI: Prompt caching, PDF input, Built-in web search, temperature parameter, top_p parameter, logprobs.
Price history
USD per 1M tokens, standard tierWe started recording this model's prices on Oct 1, 2026. The history grows with each daily check.
Show as a table
| From | Type | Price |
|---|---|---|
| Oct 1, 2026 | Input | $15.00 |
| Oct 1, 2026 | Output | $60.00 |
Prices
USD per 1M tokens, every type and band, by tier| Type | Band | Price $/1M | In effect |
|---|---|---|---|
| Standard | |||
| input | short context | $15.00 | |
| cached input | short context | $7.50 | |
| output | short context | $60.00 | |
| Batch | |||
| input | short context | $7.50 | |
| output | short context | $30.00 | |
Changelog
Changes we detected on OpenAI's pagesNo changes recorded yet.
Counting to 8:00 pm ET on October 22, 2026, which is 00:00 UTC on October 23, 2026.
Email alerts
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Last checked · Sources: OpenAI deprecations, OpenAI pricing, OpenAI models