OpenAIReleased on Nov 13, 2025

GPT-5.1: Benchmarks, Pricing & Context Window

GPT-5.1 is a language model from OpenAI, released in November 2025, with multimodal input.

The best model for coding and agentic tasks with configurable reasoning effort. GPT-5.1 is our flagship model for coding and agentic tasks with configurable reasoning and non-reasoning effort.

Input
TextImage
Output
Text
Speed
TTFT1.21s
Throughput160char/s
Cost
$2.22/ 1M · 8:1 in:out
$1.25 in · $10.0 out

GPT-5.1 pricing

Providers

GPT-5.1 starts at $1.25 per million input tokens and $10.00 per million output tokens via OpenAI.

ProviderInput $/MOutput $/MMax InputMax OutputLatency sThroughputQuantInputOutput
OpenAI logoOpenAI
$1.25$10.00400.0K128.0K
1.21
160 c/s
—

GPT-5.1 API

API access coming soon

GPT-5.1 will be available through our gateway shortly.

GPT-5.1 examples

Recent arena outputs from GPT-5.1, picked from the highest-ranked matchups.

GPT-5.1 license

GPT-5.1 is released under the Proprietary license, which restricts commercial use, has a knowledge cutoff of September 2024.

License
Proprietary
Non-commercial
Knowledge cutoff
September 2024

Proprietary license - usage restrictions apply

FAQ

Common questions about GPT-5.1.

What is the GPT-5.1 release date?

GPT-5.1 was released on November 13, 2025 by OpenAI.

Who created GPT-5.1?

GPT-5.1 was created by OpenAI.

What is the license for GPT-5.1?

GPT-5.1 is released under the Proprietary license.

What is the knowledge cutoff date for GPT-5.1?

GPT-5.1 has a knowledge cutoff of September 2024. This means the model was trained on data up to this date and may not have information about events after this time.

Is GPT-5.1 multimodal?

Yes, GPT-5.1 is a multimodal model that can process both text and images as input.