# GPT-5.1 API prices

GPT-5.1 (gpt) — 400k context, 131k max output.
31 metered per-token offers from 31 provider(s), in USD per 1M tokens.
Prices as of 2026-10-04.

| Provider | Input $/1M | Output $/1M | Cache read $/1M | Context |
| --- | --- | --- | --- | --- |
| Ofox | $1 | $8 | $0.104 | 400k |
| OpenCode Zen | $1.07 | $8.5 | $0.107 | 400k |
| Poe | $1.1 | $9 | $0.11 | 400k |
| Jiekou.AI | $1.125 | $9 | — | 400k |
| 302.AI | $1.25 | $10 | — | 400k |
| Abacus | $1.25 | $10 | $0.125 | 400k |
| AIHubMix | $1.25 | $10 | $0.13 | 400k |
| Azure | $1.25 | $10 | $0.125 | 400k |
| Azure Cognitive Services | $1.25 | $10 | $0.125 | 400k |
| Cloudflare AI Gateway | $1.25 | $10 | $0.125 | 128k |
| Databricks | $1.25 | $10 | $0.125 | 400k |
| Eden AI | $1.25 | $10 | $0.125 | 400k |
| Helicone | $1.25 | $10 | $0.125 | 400k |
| Impossibl | $1.25 | $10 | $0.125 | 400k |
| Kilo Gateway | $1.25 | $10 | $0.125 | 400k |
| DevPass (LLM Gateway) | $1.25 | $10 | $0.125 | 400k |
| LLM Gateway | $1.25 | $10 | $0.125 | 400k |
| LLM Gateway | $1.25 | $10 | $0.125 | 400k |
| Merge Gateway | $1.25 | $10 | $0.125 | 400k |
| NanoGPT | $1.25 | $10 | $0.125 | 400k |
| NanoGPT | $1.25 | $10 | $0.125 | 400k |
| NEAR AI Cloud | $1.25 | $10 | $0.125 | 400k |
| Neon | $1.25 | $10 | $0.125 | 400k |
| OpenAI | $1.25 | $10 | $0.125 | 400k |
| OpenRouter | $1.25 | $10 | $0.125 | 400k |
| OrcaRouter | $1.25 | $10 | $0.125 | 400k |
| Perplexity Agent | $1.25 | $10 | $0.125 | 400k |
| Pioneer | $1.25 | $10 | $0.125 | 400k |
| ZenMux | $1.25 | $10 | $0.12 | 400k |
| Cortecs | $1.375 | $10.96 | $0.156 | 400k |
| Requesty (eu) | $1.375 | $11 | $0.1375 | 400k |

## Summary

- Cheapest input: $1 per 1M tokens (Ofox)
- Cheapest output: $8 per 1M tokens (Ofox)
- First-party: $10 per 1M output tokens (OpenAI)
- Free offers: none
- Subscription plans (not per-token): none
- Released: 2025-11-13
- Inputs: audio, image, pdf, text

## FAQ

### What is the cheapest GPT-5.1 API?

As of Oct 4, 2026, Ofox has the lowest GPT-5.1 output price at $8 per 1M tokens, and Ofox has the lowest input price at $1 per 1M tokens. Prices are metered per-token rates in USD; free tiers and subscription plans are excluded.

### How much does GPT-5.1 cost on OpenAI?

OpenAI charges $1.25 per 1M input tokens and $10 per 1M output tokens for GPT-5.1.

### How many providers offer GPT-5.1?

31 providers list GPT-5.1 on Sovyron; 31 of them sell it at a metered per-token price.

### Is GPT-5.1 free?

No provider in the Sovyron catalog lists a free tier for GPT-5.1.

### What is the context window of GPT-5.1?

GPT-5.1 supports a 400k-token context window and up to 131k output tokens.

HTML page: https://sovyron.com/models/gpt-5-1/
Full dataset: https://sovyron.com/data/catalog.json