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o1
openai·openai/o1-2·Deprecated·Closed·o series
O-series reasoning model for hard analysis, math, coding, and planning
At a glance
Official price$15.00 / $60.00 per 1M
Cache read $7.50 · OpenAI
Lowest paid$14.00 / $54.00
Poe Gateway · 1.1× spread
Context200,000
Output limit100,000
Capabilities
✓ Reasoning✓ Tool use✓ Structured outputTemperature✓ Attachments
⚠ Providers report capability flags inconsistently
Modalities
TextImagePDF
Knowledge cutoff2023-09
Released / updated2024-12-05 / 2024-12-05
Quality & performanceArtificial Analysis · Intelligence Index v4.1
Intelligence23.9
Value1
Coding39.7
Agentic—
Output speed—
TTFT—
Value formulaIQ 23.9 ÷ min blended $24.000 = 1
Quality is independently evaluated by Artificial Analysis. Speed/latency are model-level medians.
Available at 12 providers12 with public prices
| Provider | Tier | Input | Output | Cache read | Cache write | Context | Output limit | Status |
|---|---|---|---|---|---|---|---|---|
| Poe openai/o1 | Gateway | $14.00 | $54.00 | — | — | 200,000 | 100,000 | |
| Impossibl openai/o1 | Gateway | $15.00 | $60.00 | $7.50 | — | 200,000 | 100,000 | |
| OpenRouter openai/o1 | Gateway | $15.00 | $60.00 | $7.50 | — | 200,000 | 100,000 | |
| OpenAIOfficial o1 | First-party | $15.00 | $60.00 | $7.50 | — | 200,000 | 100,000 | deprecated |
| Merge Gateway openai/o1 | Gateway | $15.00 | $60.00 | $7.50 | — | 200,000 | 100,000 | |
| Cloudflare AI Gateway openai/o1 | Cloud | $15.00 | $60.00 | $7.50 | — | 200,000 | 100,000 | deprecated |
| Azure Cognitive Services o1 | First-party | $15.00 | $60.00 | $7.50 | — | 200,000 | 100,000 | deprecated |
| Azure o1 | First-party | $15.00 | $60.00 | $7.50 | — | 200,000 | 100,000 | deprecated |
| Vercel AI Gateway openai/o1 | Cloud | $15.00 | $60.00 | $7.50 | — | 200,000 | 100,000 | deprecated |
| Eden AI openai/o1 | Gateway | $15.00 | $60.00 | $7.50 | — | 200,000 | 100,000 | |
| DevPass (LLM Gateway) o1 | Gateway | $15.00 | $60.00 | $7.50 | — | 200,000 | 100,000 | |
| Kilo Gateway openai/o1 | Gateway | $15.00 | $60.00 | $7.50 | — | 200,000 | 100,000 |
Sorted by blended price (input×0.75 + output×0.25) asc. The official channel always shows regardless of rank. Whether a gateway's low price is actually usable can't be verified.
Your usage cost
1Impossibl$5,100.00
2OpenRouter$5,100.00
3OpenAI · Official$5,100.00
4Merge Gateway$5,100.00
5Cloudflare AI Gateway$5,100.00
6Azure Cognitive Services$5,100.00
Switch to Impossibl to save $0.00/mo (0%). The gap is small, so staying on the official channel is fine.
Note: this is a gateway; verify availability and rate limits yourself.
Benchmark1 items
| Name | Conditions | Score | Metric | Source |
|---|---|---|---|---|
| Aider Polyglot | — | 61.7 | percent correct | Source ↗ |
The same benchmark scores very differently across harness / dataset, so the qualifying conditions must be shown together.
Reasoning control
effort = loweffort = mediumeffort = higheffort = none
Related models
S2.1 Pro (Free)same series—S2.1 Prosame series—Arrow 1.1same series—GLM-5.2cheaper alternative$1.40 / $4.40GPT OSS 120Bcheaper alternative$1.00 / $4.20Kimi K2.6cheaper alternative$0.95 / $4.00DeepSeek V4 Procheaper alternative$0.435 / $0.87
Price historyone sample accumulated per data sync
Input listOutput listMin blended