OpenAI: Gpt 5.1 chat

openai/gpt-5.1-chat

GPT-5.1 Chat (AKA Instant is the fast, lightweight member of the 5.1 family, optimized for low-latency chat while retaining strong general intelligence. It uses adaptive reasoning to selectively “think” on harder queries, improving accuracy on math, coding, and multi-step tasks without slowing down typical conversations. The model is warmer and more conversational by default, with better instruction following and more stable short-form reasoning. GPT-5.1 Chat is designed for high-throughput, interactive workloads where responsiveness and consistency matter more than deep deliberation.

Model specifications

Input
text, image, audio
Output
text
Context
128,000 tokens
Max output
16,400 tokens
Input price
.25 / 1M tokens
Output price
0 / 1M tokens
Released
2026-02-11

Capabilities

  • Streaming
  • Function calling
  • Vision
  • Playground

Provider pricing, discounts and data privacy

Compare effective provider prices, published discounts, regions, retention policies, training use, compliance, and privacy links by service tier.

Standard service tier

2 available providers · tier input average .25 / 1M tokens · tier output average 0 / 1M tokens

Azure

Tier: Standard · Region: US

Pricing
Input
.25 / 1M tokens
Output
0 / 1M tokens

No provider discount is currently published.

Data privacy and compliance
Region
US
Zero data retention
Yes
Data retention
Zero retention
Used for training
No
Data collection
Moderated
Yes
GDPR compliant
Yes
HIPAA compliant
Yes
SOC 2 certified
Yes
BYOK supported
No

Privacy policy · Terms · Official website · Documentation · Status

OpenAI

Tier: Standard · Region: US

Pricing
Input
.25 / 1M tokens
Output
0 / 1M tokens

No provider discount is currently published.

Data privacy and compliance
Region
US
Zero data retention
Yes
Data retention
Zero retention
Used for training
No
Data collection
Moderated
Yes
GDPR compliant
Yes
HIPAA compliant
Yes
SOC 2 certified
Yes
BYOK supported
Yes

Privacy policy · Terms · Official website · Documentation · Status

Frequently asked questions

What is OpenAI: Gpt 5.1 chat?
GPT-5.1 Chat (AKA Instant is the fast, lightweight member of the 5.1 family, optimized for low-latency chat while retaining strong general intelligence. It uses adaptive reasoning to selectively “think” on harder queries, improving accuracy on math, coding, and multi-step tasks without slowing down typical conversations. The model is warmer and more conversational by default, with better instruction following and more stable short-form reasoning. GPT-5.1 Chat is designed for high-throughput, interactive workloads where responsiveness and consistency matter more than deep deliberation.
How much does OpenAI: Gpt 5.1 chat cost?
Input costs start at .25 / 1M tokens and output costs start at 0 / 1M tokens. Provider-level prices vary by service tier.
What is the context length of OpenAI: Gpt 5.1 chat?
OpenAI: Gpt 5.1 chat supports a 128,000 token context window and up to 16,400 output tokens.
What capabilities does OpenAI: Gpt 5.1 chat support?
OpenAI: Gpt 5.1 chat supports Streaming, Function calling, Vision, Playground.
Which providers offer OpenAI: Gpt 5.1 chat?
OpenAI: Gpt 5.1 chat is available from Azure, OpenAI.
How do providers handle data privacy for OpenAI: Gpt 5.1 chat?
2 of 2 providers report that customer data is not used for training, and 2 offer zero-data-retention routing. Retention, compliance, and privacy-policy links are listed per provider.

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