o1 mini
by OpenAIChat
O1 Mini is a model that offers a balance between cost and performance.
- Context
- 128K tokens
- Max output
- 65,536 tokens
- Parameters
- 120B active
- Released
- 2025-01-01
- Weights
- Closed
openai/o1-mini · also seen as eu/o1-mini-2024-09-12, o1-mini-2024-09-12, us/o1-mini-2024-09-12, eu/o1-mini, +1 more
Specifications
Full facts as recorded, incl. what is unknown.
- Released
- 2025-01-01
- Weights
- Closed
- Input
- Text
- Output
- Text
- Context window
- 128,000 max across endpoints
- Max output
- 65,536
- Providers
- 3 + 1 gateway, not counted as providers
- Epoch Capabilities Index
- 135.8 ± 2.6 against price
- Direct price range
- $1.10 in · $4.40 out per 1M tokens · across all 3 providers
More details
- Last updated
- 2025-01-01
- Knowledge cutoff
- 2025-01
- Parameters
- 120B active
- Developer country
- United States of America
Capabilities
Across all endpoints: supported if any endpoint supports it.
- Tool calling
- Parallel tools
- Structured outputunknown
- Reasoning
- Image input
- PDF input
- Audio input
- Audio outputunknown
- Video input
- Prompt caching
- Web searchunknown
- Computer useunknown
- System messages
- Assistant prefillunknown
- Temperature
- Streamingunknown
- Attachments
Endpoints
One row per provider and variant; gateways are listed separately.
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Price history
Atom feedNo change since 19 Oct 2026. The cheapest direct price has been $1.10 in / $4.40 out per 1M tokens at OpenAI on every data refresh since then.
Tracked from 19 Oct 2026. Headline-eligible direct prices only, so a price the sanity check flags never draws a spike. Series as JSON
Cost calculator
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Similarly priced models
Blended rate per 1M tokens, each at its own cheapest provider (10M input : 2M output mix).
| Model | Blended/1M | In/1M | Out/1M | Context | vs o1 mini |
|---|---|---|---|---|---|
| o3-miniOpenAI | $1.65 | $1.10 | $4.40 | 200K | +0% |
| o3-mini-highOpenAI | $1.65 | $1.10 | $4.40 | 200K | +0% |
| OpenAI o3-mini (Low)OpenAI | $1.65 | $1.10 | $4.40 | 200K | +0% |
| o4-miniOpenAI | $1.65 | $1.10 | $4.40 | 200K | +0% |
| o4 Mini HighOpenAI | $1.65 | $1.10 | $4.40 | 200K | +0% |
| Gemini Robotics-ER 1.6 PreviewGoogle | $1.67 | $1.00 | $5.00 | 131K | +1% |
| Sonar ReasoningPerplexity | $1.67 | $1.00 | $5.00 | 128K | +1% |
| GLM-4.5 AirXZ.ai (Zhipu AI) | $1.67 | $1.10 | $4.50 | 128K | +1% |
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