o1 Preview
o1 Preview is OpenAI's language model with a 128K context window and up to 33K output tokens, available from 2 providers, starting at $15.00 / 1M input and $60.00 / 1M output. A research preview of the o1 reasoning series, trained with reinforcement learning to think through complex problems via an internal chain of thought before responding.
| Benchmarks | |
|---|---|
| Intelligence Index | #246 |
| Coding Index | #105 |
| Math Index | #89 |
| MMLU-Pro | #40 |
| GPQA | #191 |
| Time to First Token | #258 |
| MATH-500 | #65 |
| AIME 2025 | #89 |
| Output TPS | #490 |
Capabilities
Input2/5
Text✓
Image·
Audio·
Video·
PDF✓
Output1/5
Text✓
Image·
Audio·
Video·
Embedding·
Capabilities6/13
Reasoning✓
Adaptive Reasoning·
Function Calling✓
Parallel Function Calling✓
Structured Outputs✓
Native JSON Schema✓
Web Search·
URL Context·
Computer Use·
Code Execution·
File Search·
Prompt Caching✓
Assistant Prefill·
Pricing by Provider
US Dollar ($)
Per 1M tokens
| Provider | Standard | ||
|---|---|---|---|
| Input $ / 1M | Output $ / 1M | Cache Read $ / 1M | |
| $15.00 | $60.00 | $8.25 | |
| $15.00 | $60.00 | $7.50 | |
Cost Calculator
US Dollar ($)
Preset:
Versions
| Version | Released | Context | Input / 1M | Output / 1M | Status |
|---|---|---|---|---|---|
| o4 Mini Deep Research | 200K | $2.00 | $8.00 | Deprecated | |
| o3 Deep Research | 200K | $2.50 | $40.00 | Deprecated | |
| o3 Pro | 200K | $20.00 | $80.00 | Deprecating | |
| o3 | 200K | $2.00 | $8.00 | Deprecated | |
| o4 Mini | 200K | $1.00 | $4.00 | Deprecating | |
| o4 Mini High | 200K | $1.10 | $4.40 | Available | |
| o1 Pro | 200K | $150.00 | $600.00 | Deprecating | |
| o3 Mini High | 200K | $1.10 | $4.40 | Available | |
| o3 Mini | 200K | $1.10 | $4.40 | Deprecating | |
| o1 | 200K | $15.00 | $60.00 | Deprecating | |
| o1 Preview | — | 128K | $15.00 | $60.00 | Current |