GPT-5.1 Instant
Overview
GPT-5.1 Instant is the next iteration of GPT-5, designed to be more conversational than earlier chat models. It features improved instruction following and an adaptive reasoning capability that lets it decide when to think before responding. GPT-5.1 Instant offers clearer and more engaging interactions, reducing jargon and enhancing user comprehension. It demonstrates significant improvements in coding tasks, making it a valuable tool for developers. GPT-5.1 Auto routes each query to the model best suited for it, so users typically don't need to choose a model manually.
GPT-5.1 Instant was released on November 12, 2025. API access is available through OpenAI.
Performance
Timeline
Specifications
Benchmarks
GPT-5.1 Instant Performance Across Datasets
Scores sourced from the model's scorecard, paper, or official blog posts
llm-stats.com - Thu Jan 08 2026Pricing
Pricing, performance, and capabilities for GPT-5.1 Instant across different providers:
| Provider | Input ($/M) | Output ($/M) | Max Input | Max Output | Latency (s) | Throughput | Quantization | Input | Output |
|---|---|---|---|---|---|---|---|---|---|
OpenAI | $1.25 | $10.00 | 400.0K | 128.0K | 2.0 | 100.0 c/s | — | Text Image Audio Video | Text Image Audio Video |
API Access
API Access Coming Soon
API access for GPT-5.1 Instant will be available soon through our gateway.
Recent Posts
Recent Reviews
FAQ
Common questions about GPT-5.1 Instant