GPT-5.1
As of Oct 4, 2026, the cheapest GPT-5.1 API price is $1 per 1M input tokens (Ofox) and $8 per 1M output tokens (Ofox). GPT-5.1 is offered by 31 providers in the gpt family, reasoning enabled. OpenAI's own rate is $10 per 1M output tokens.
API pricing by provider
Metered per-token prices. Cheapest input and output are highlighted; † marks a context-tier surcharge. How prices are ranked.
| Ofox | Cheapest$1 | Cheapest$8 | $0.104 | — | 400k | 16d agoout −20% |
| 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 | $1.25 | 400k | — |
| ZenMux | $1.25 | $10 | $0.12 | — | 400k | — |
| Cortecs | $1.375 | $10.96 | $0.156 | — | 400k | — |
| Requestyeu | $1.375 | $11 | $0.1375 | — | 400k | — |
GPT-5.1 pricing 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.
Token cost calculator
What a month costs at one provider's published rates. Enter the tokens you expect to send and receive; cached tokens use the cached-input price where the provider lists one, and count as ordinary input where it does not.
Estimated
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