GPT-5.1 Thinking
OpenAIOverview
GPT-5.1 Thinking is the next iteration of GPT-5, designed with enhanced adaptive reasoning capabilities. Unlike GPT-5.1 Instant, GPT-5.1 Thinking adapts thinking time more precisely to each question, providing more thorough reasoning for complex queries. It offers improved conversational abilities with clearer and more engaging interactions, reducing jargon and enhancing user comprehension. GPT-5.1 Thinking demonstrates significant improvements in coding tasks and complex reasoning scenarios, making it valuable for developers and users who need deeper analysis.
GPT-5.1 Thinking was released on November 12, 2025. API access is available through OpenAI.
Performance
Timeline
Other Details
Related Models
Compare GPT-5.1 Thinking to other models by quality (GPQA score) vs cost. Higher scores and lower costs represent better value.
Performance visualization loading...
Gathering benchmark data from similar models
Benchmarks
GPT-5.1 Thinking Performance Across Datasets
Scores sourced from the model's scorecard, paper, or official blog posts
llm-stats.com - Wed Dec 17 2025Pricing
Pricing, performance, and capabilities for GPT-5.1 Thinking 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 | 3.0 | 80.0 tok/s | — | Text Image Audio Video | Text Image Audio Video |
Example Outputs
Recent Posts
Recent Reviews
API Access
API Access Coming Soon
API access for GPT-5.1 Thinking will be available soon through our gateway.
FAQ
Common questions about GPT-5.1 Thinking