o1
OpenAI · chat model
o1 is listed here as a chat model from OpenAI. This page shows simple API pricing, token limits, and capability flags so you can compare it with similar options.
Input
$15.0000 / 1M tokens
Output
$60.0000 / 1M tokens
Cached input
$7.5000 / 1M tokens
Context
100.0K
Quick read
Best for
Use this page when you need a fast view of cost, context size, and supported features before testing the model in your own workload.
Things to verify
Always check the provider page for discounts, cache pricing, region rules, and any model limits that may not appear in public metadata.
Pricing
| Item | Price |
|---|---|
| Input | $15.0000 / 1M tokens |
| Output | $60.0000 / 1M tokens |
| Cached input | $7.5000 / 1M tokens |
| Embedding | $15.0000 / 1M tokens |
Token limits
Context window
100.0K
Max input tokens
200.0K
Max output tokens
100.0K
Max tokens
100.0K
Capabilities
| Capability | Supported |
|---|---|
| Vision | ✅ |
| Function calling | ✅ |
| Parallel function calling | — |
| Tool choice | ✅ |
| Prompt caching | ✅ |
| Reasoning | ✅ |
| Response schema | ✅ |
| System messages | ✅ |
| Audio input | — |
| Audio output | — |
| Web search | — |
| PDF input | ✅ |
| Video input | — |
Sources
| Source links | |
| Pricing data | LiteLLM model cost map |
| Synced at | 2026-05-28 |
Docs
| Official docs |
Similar models
This list is ranked by overall similarity. Use filters to emphasize the lens that matters most for the replacement you are making.
Comparing from
| Model | Cost | Input shape | Features | Context | Why it is close |
|---|---|---|---|---|---|
| o1 OpenAI | In $15.0000 / 1M tokens Out $60.0000 / 1M tokens | imagepdftext
Output: text | VisionFunction callingTool choicePrompt caching | 100.0K | Current model Reference row |
| Model | Cost | Input shape | Features | Context | Why it is close |
|---|---|---|---|---|---|
| o1-2024-12-17 OpenAI | In $15.0000 / 1M tokens Out $60.0000 / 1M tokens | imagepdftext
Output: text | VisionFunction callingTool choicePrompt caching | 100.0K | Same provider Overall 97% |
| azure Azure | In $15.0000 / 1M tokens Out $60.0000 / 1M tokens | imagepdftext
Output: text | VisionFunction callingTool choicePrompt caching | 100.0K | Text + image covered Overall 89% |
| o1-2024-12-17 Azure | In $15.0000 / 1M tokens Out $60.0000 / 1M tokens | imagepdftext
Output: text | VisionFunction callingTool choicePrompt caching | 100.0K | Text + image covered Overall 89% |
| openai vercel_ai_gateway | In $15.0000 / 1M tokens Out $60.0000 / 1M tokens | imagepdftext
Output: text | VisionFunction callingTool choiceResponse schema | 100.0K | Text + image covered Overall 88% |
| o1-2024-12-17 Azure | In $16.5000 / 1M tokens Out $66.0000 / 1M tokens | imagepdftext
Output: text | VisionFunction callingTool choicePrompt caching | 100.0K | Text + image covered Overall 84% |
| o1-2024-12-17 Azure | In $16.5000 / 1M tokens Out $66.0000 / 1M tokens | imagepdftext
Output: text | VisionFunction callingTool choicePrompt caching | 100.0K | Text + image covered Overall 84% |
| openai OpenRouter | In $15.0000 / 1M tokens Out $60.0000 / 1M tokens | imagepdftext file
Output: text | VisionFunction callingTool choicePrompt caching | 100.0K | Text + image covered Overall 84% |
| gpt-5.5 OpenAI | In $5.0000 / 1M tokens Out $30.0000 / 1M tokens | imagepdftext
Output: text | VisionFunction callingTool choicePrompt caching | 128.0K | Same provider Overall 80% |
| gpt-5.5-2026-04-23 OpenAI | In $5.0000 / 1M tokens Out $30.0000 / 1M tokens | imagepdftext
Output: text | VisionFunction callingTool choicePrompt caching | 128.0K | Same provider Overall 80% |
| gpt-5.4 OpenAI | In $2.5000 / 1M tokens Out $15.0000 / 1M tokens | imagepdftext
Output: text | VisionFunction callingTool choicePrompt caching | 128.0K | Same provider Overall 78% |
| gpt-5.4-2026-03-05 OpenAI | In $2.5000 / 1M tokens Out $15.0000 / 1M tokens | imagepdftext
Output: text | VisionFunction callingTool choicePrompt caching | 128.0K | Same provider Overall 78% |
| o3 OpenAI | In $2.0000 / 1M tokens Out $8.0000 / 1M tokens | imagepdftext
Output: text | VisionFunction callingTool choicePrompt caching | 100.0K | Same provider Overall 77% |
| gpt-5.1-2025-11-13 Azure | In $1.2500 / 1M tokens Out $10.0000 / 1M tokens | imagepdftext
Output: text | VisionFunction callingTool choicePrompt caching | 128.0K | Text + image covered Overall 77% |
| gpt-5 Azure | In $1.2500 / 1M tokens Out $10.0000 / 1M tokens | imagepdftext
Output: text | VisionFunction callingTool choicePrompt caching | 128.0K | Text + image covered Overall 77% |
| gpt-5-2025-08-07 Azure | In $1.2500 / 1M tokens Out $10.0000 / 1M tokens | imagepdftext
Output: text | VisionFunction callingTool choicePrompt caching | 128.0K | Text + image covered Overall 77% |
| gpt-5-mini Azure | In $0.2500 / 1M tokens Out $2.0000 / 1M tokens | imagepdftext
Output: text | VisionFunction callingTool choicePrompt caching | 128.0K | Text + image covered Overall 74% |
| gpt-5-mini-2025-08-07 Azure | In $0.2500 / 1M tokens Out $2.0000 / 1M tokens | imagepdftext
Output: text | VisionFunction callingTool choicePrompt caching | 128.0K | Text + image covered Overall 74% |
| gpt-5-chat Azure | In $1.2500 / 1M tokens Out $10.0000 / 1M tokens | imagepdftext
Output: text | VisionFunction callingTool choicePrompt caching | 16.4K | Text + image covered Overall 67% |
| o1-preview-2024-09-12 Azure | In $15.0000 / 1M tokens Out $60.0000 / 1M tokens | imagepdftext
Output: text | Function callingPrompt cachingReasoningPDF input | 32.8K | Partial I/O overlap Overall 64% Missing image |
| o1-preview Azure | In $15.0000 / 1M tokens Out $60.0000 / 1M tokens | imagepdftext
Output: text | Function callingPrompt cachingReasoning | 32.8K | Partial I/O overlap Overall 61% Missing image |
| gemini-3.1-pro-preview OpenRouter | In $2.0000 / 1M tokens Out $12.0000 / 1M tokens | imagepdftext audiofile
Output: text | VisionFunction callingTool choicePrompt caching | 65.5K | Text + image covered Overall 61% |
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