ModelsOpenAI
GPT-5.1
Context
400K
tokens
Released
Nov 13, 2025
on OpenRouter
Token share
0.2%
OpenRouter · Jun 9, 2026
Pricing
Price per million tokens
Input $/MTok
$0.6350%
OpenRouter · Jul 30, 2026
Output $/MTok
$5.0050%
OpenRouter · Jul 30, 2026
Cache read $/MTok
$0.063
OpenRouter
| Source | Tracked slug | In $/MTok | Out $/MTok | Cache read | Cache write | Context | Effective | Last Δ (in) |
|---|---|---|---|---|---|---|---|---|
| OpenRouter | openai/gpt-5.1:batch | $0.63 | $5.00 | $0.063 | — | 400K | Jul 30, 2026 | 50% |
| models.dev | gitlab/duo-chat-gpt-5-1 | $0.00 | $0.00 | — | — | 400K | Jul 30, 2026 | 100% |
| llm-prices.com | gpt-5.1 | $1.25 | $10.00 | $0.13 | — | — | Jul 29, 2026 | — |
latest tracked price per source · Δ = most recent input-price move within that source
3 sources tracking
Input $/MTok
Output $/MTok
per-source step lines · $/MTok
history since Jan 1, 2023
Specs
Context & availability
| Provider | OpenAI |
|---|---|
| Context window | 400K tokens |
| Listed on OpenRouter | Nov 13, 2025 |
| Tracked price sources | llm-prices.com · OpenRouter · models.dev |
| OpenRouter slugs | openai/gpt-5.1 · openai/gpt-5.1-20251113 |
source: OpenRouter model catalog + tracked price feeds
id: gpt-5-1
Usage
Share of OpenRouter tokens
90-day · to Jun 9, 2026
source: OpenRouter model rankings · share of tracked coding-token volume
0.2% on Jun 9, 2026
Benchmarks
Benchmark results
| Benchmark | Configuration | Score | Date | Source |
|---|---|---|---|---|
| AA Agentic Index | openai/gpt-5.1 | 21index | — | or-embedded-aa |
| AA Agentic Index | openai/gpt-5.1:batch | 21index | — | or-embedded-aa |
| AA Coding Index | openai/gpt-5.1 | 49.4index | — | or-embedded-aa |
| AA Coding Index | openai/gpt-5.1:batch | 49.4index | — | or-embedded-aa |
| AA Intelligence Index | openai/gpt-5.1 | 36.9index | — | or-embedded-aa |
| AA Intelligence Index | openai/gpt-5.1:batch | 36.9index | — | or-embedded-aa |
scores as published by each benchmark; configurations differ — compare within a row's benchmark only
Alternatives
Similar models
| # | Model | Tokens/day | 7d Δ | Head-to-head |
|---|---|---|---|---|
| 1 | DeepSeek V4 FlashDeepSeek | 2.7T | 18.7% | vs GPT-5.1 |
| 2 | Hy3Tencent | 1.3T | 11.6% | vs GPT-5.1 |
| 5 | Nemotron 3 UltraNVIDIA | 733B | 106.3% | vs GPT-5.1 |
| 7 | GLM 5.2Z.ai | 533B | 41% | vs GPT-5.1 |
ranked by OpenRouter usage-rank proximity
snapshot Aug 20, 2026
FAQ
GPT-5.1 FAQ
- How much does GPT-5.1 cost per token?
- GPT-5.1 is priced at $0.63 per million input tokens and $5.00 per million output tokens, per OpenRouter as of Jul 30, 2026.
- What is GPT-5.1's context window?
- GPT-5.1 supports a context window of up to 400K tokens, per OpenAI.
- How widely used is GPT-5.1?
- GPT-5.1 accounts for about 0.2% of tracked OpenRouter coding-token volume as of Jun 9, 2026.
- What are the alternatives to GPT-5.1?
- By OpenRouter usage, comparable models include DeepSeek V4 Flash, Hy3, and Nemotron 3 Ultra. Side-by-side comparisons are linked in the alternatives table.
Alerts
Track GPT-5.1
Email me when GPT-5.1's price moves or it gets deprecated.