GPT-5.1 (High) API Pricing
OpenAI · released 2025-11-13 · merges 2 reasoning-effort tiers
Also searched as: GPT-5.1 pricing · GPT 5.1 price
Benchmarks shown for the highest-scoring reasoning tier. Merged tiers: GPT-5.1 (High), GPT-5.1 (Non-reasoning).
GPT-5.1 price
0.125¢ / 1K
1.00¢ / 1K
0.344¢ / 1K
What it actually costs
| Workload | Tokens | Cost |
|---|---|---|
| Short chat reply | 500 in / 300 out | 0.362¢ |
| RAG query | 4,000 in / 500 out | $0.0100 |
| Long document summary | 50,000 in / 1,000 out | $0.0725 |
| Code review of a 2k-line file | 30,000 in / 2,000 out | $0.0575 |
| 1,000 chat replies/day for 30 days | 30,000 × (500 in / 300 out) | $108.75 |
Cost = (input tokens ÷ 1,000,000 × $1.25) + (output tokens ÷ 1,000,000 × $10.00).
Benchmarks
#97 of 547
#70 of 195
#13 of 249
Similar intelligence, lower price
| Model | Intelligence | Blended $/1M |
|---|---|---|
| Hy3-preview (Reasoning) | 22.7 | $0.10 |
| Ling-3.0-flash-Fin | 22.6 | $0.111 |
| DeepSeek V4 Flash 0420 (High) | 24.4 | $0.142 |
| Solar Mini 4 | 24.1 | $0.175 |
| MiMo-V2.5 | 21.8 | $0.175 |
Leaderboard neighbours
| Model | Intelligence | Blended $/1M |
|---|---|---|
| GPT-5 Codex (High) | 24.9 | $3.438 |
| Grok 4.3 (High) | 24.9 | $1.563 |
| Claude Sonnet 4.6 (Non-reasoning, High) | 24.7 | $6.00 |
| GPT-5.1 (High) | 24.7 | $3.438 |
| Solar Open2 250B | 24.7 | — |
| Ling-3.0-flash-VL | 24.6 | — |
| DeepSeek V4 Flash 0420 (High) | 24.4 | $0.142 |
More from OpenAI
| Model | Intelligence | Blended $/1M |
|---|---|---|
| GPT-6 Astra (Max) | 52.7 | $20.00 |
| GPT-6.1 Sol (Max) | 51.8 | $4.00 |
| GPT-6 Sol (Max) | 47.6 | $4.00 |
| GPT-5.6 Sol (Max) | 47.0 | $8.00 |
| GPT-5.6 Terra (Max) | 42.1 | $4.50 |
| GPT-5.4 (Xhigh) | 39.0 | $5.625 |
| GPT-5.5 (Xhigh) | 38.4 | $11.25 |
| GPT-6 Luna (Max) | 38.1 | $0.20 |
Count tokens & estimate cost for GPT-5.1 (High) See GPT-5.1 (High) on the leaderboard
Source: Artificial Analysis · last synced 2026-10-15
FAQ
Who develops GPT-5.1 (High)?
GPT-5.1 (High) is developed by OpenAI, released 2025-11-13.
How much does GPT-5.1 (High) cost per million tokens?
GPT-5.1 (High) costs $1.25 per 1M input tokens and $10.00 per 1M output tokens ($3.438 blended), per Artificial Analysis's official pricing data.
What is the GPT-5.1 API price?
The GPT-5.1 API price is $1.25 per 1M input tokens and $10.00 per 1M output tokens ($3.438 per 1M blended).
How much does GPT-5.1 cost for a typical request?
A short chat reply (500 in / 300 out tokens) costs about 0.362¢ on GPT-5.1, at $1.25/1M input and $10.00/1M output.
Is GPT-5.1 free?
GPT-5.1's official API list price is $1.25 per 1M input tokens and $10.00 per 1M output tokens. This site tracks list prices only, not free tiers or trial credits — check OpenAI's site for those.
How does GPT-5.1 (High) rank on benchmarks?
GPT-5.1 (High) scores 24.7 on the Artificial Analysis Intelligence Index, ranking #97 of 547 models we track.
Is there a cheaper model with similar intelligence to GPT-5.1 (High)?
Yes — Hy3-preview (Reasoning) scores similar intelligence (22.7) at $0.10/1M blended, versus $3.438/1M for GPT-5.1 (High).
Where does this data come from?
Pricing and benchmark data for GPT-5.1 (High) comes from Artificial Analysis (artificialanalysis.ai), synced daily. Last synced 2026-10-15.