GPT-5.1
DeprecatesGPT-5.1 is OpenAI's language model with a 410K context window and up to 128K output tokens, available from 7 providers, starting at $1.25 / 1M input and $10.00 / 1M output. OpenAI's flagship LLM for coding and agentic tasks with configurable reasoning effort levels, available via the Responses API.
| Benchmarks | |
|---|---|
| Coding Index | #67 |
| Math Index | #13 |
| MMLU-Pro | #16 |
| GPQA | #73 |
| HLE | #107 |
| LiveCodeBench | #11 |
| IFBench | #44 |
| Time to First Token | #454 |
| SciCode | #127 |
| AIME 2025 | #17 |
| LCR | #52 |
| TerminalBench Hard | #25 |
| TAU2 | #111 |
| Output TPS | #91 |
Capabilities
Input3/5
Text✓
Image✓
Audio·
Video·
PDF✓
Output1/5
Text✓
Image·
Audio·
Video·
Embedding·
Capabilities7/13
Reasoning✓
Adaptive Reasoning·
Function Calling✓
Parallel Function Calling✓
Structured Outputs✓
Native JSON Schema✓
Web Search✓
URL Context·
Computer Use·
Code Execution·
File Search·
Prompt Caching✓
Assistant Prefill·
Pricing by Provider
US Dollar ($)
Per 1M tokens
| Provider | Standard | Flex | Fast | Batch | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Input $ / 1M | Output $ / 1M | Cache Read $ / 1M | Cache Write 5m $ / 1M | Web Search $ / request | Input $ / 1M | Output $ / 1M | Cache Read $ / 1M | Input $ / 1M | Output $ / 1M | Cache Read $ / 1M | Cache Write 5m $ / 1M | Input $ / 1M | Output $ / 1M | Cache Read $ / 1M | |
| N/A | $11.00 | N/A | N/A | N/A | — | — | — | $2.75 | $22.00 | $0.275 | N/A | N/A | $5.50 | N/A | |
| N/A | $10.00 | N/A | N/A | N/A | — | — | — | $2.50 | $20.00 | $0.25 | N/A | N/A | $5.00 | N/A | |
| N/A | $13.75 | N/A | N/A | N/A | — | — | — | N/A | N/A | N/A | N/A | N/A | N/A | N/A | |
| $1.25 | $10.00 | $0.125 | $1.25 | N/A | — | — | — | $2.50 | $20.00 | $0.25 | $2.50 | — | — | — | |
| $1.25 | $10.00 | N/A | N/A | N/A | — | — | — | — | — | — | — | — | — | — | |
| $1.25 | $10.00 | $0.125 | N/A | N/A | $0.625 | $5.00 | $0.0625 | $2.50 | $20.00 | $0.25 | N/A | $0.625 | $5.00 | $0.0625 | |
| $1.25 | $10.00 | $0.125 | N/A | $0.010 | — | — | — | — | — | — | — | — | — | — | |
| $1.25 | $10.00 | $0.125 | N/A | N/A | — | — | — | — | — | — | — | — | — | — | |
| $1.50 | $12.00 | N/A | N/A | N/A | — | — | — | — | — | — | — | $0.75 | $6.00 | N/A | |
Cost Calculator
US Dollar ($)
Preset:
Versions
| Version | Released | Context | Input / 1M | Output / 1M | Status |
|---|---|---|---|---|---|
| GPT-6.1 Terra | 1.1M | $1.00 | $5.00 | Available | |
| GPT-6.1 Sol | 1.1M | $2.00 | $10.00 | Available | |
| GPT-6 Sol | 1.1M | $2.00 | $10.00 | Available | |
| GPT-6 Luna | 1.1M | $0.100 | $0.500 | Available | |
| GPT-6 Astra | 1.1M | $10.00 | $50.00 | Available | |
| GPT-5.6 Terra | 1.1M | $2.00 | $12.00 | Deprecating | |
| GPT-5.1 | 410K | $1.25 | $10.00 | Current | |
| GPT-4o Audio | 128K | $2.50 | $10.00 | Deprecated | |
| GPT-4.1 mini | 1.0M | $0.200 | $0.800 | Available | |
| GPT-4.1 | 1.0M | $2.00 | $8.00 | Deprecated | |
| GPT-4.1 Batch | 1.0M | $1.00 | $4.00 | Available |