OpenAI: GPT-5.1
The OpenAI GPT-5.1 is a language model that supports multiple input modalities, including text, image, and file inputs, with a context length of 400,000 tokens. It also offers tools for supporting reasoning and has the ability to output structured information. If you're looking for an AI model that can handle complex tasks across various data types, consider shortlisting the OpenAI GPT-5.1 due to its comprehensive input modalities and benchmarked performance with a blended score of 42.2. However, be aware that it is not free, with pricing set at $1.25 per million input tokens and $10.0 per million output tokens, which may not fit within all budgets.
Benchmark results
Independent, published benchmarks. Blended score 38.9 across 1 benchmark, last refreshed 2026-10-13. How scoring works →
| Benchmark | Measures | Score |
|---|---|---|
| AI Index | broad capability composite | 40.8 |
- Model ID
- openai/gpt-5.1
- Vendor
- openai
- Released
- November 2025
- Tokenizer
- GPT
- Input Modalities
- image, text, file
- Output Modalities
- text
- Max Output
- 128,000 tokens
- Tool Calling
- ✓ supported
- Structured Output
- ✓ supported
- Reasoning Mode
- ✓ supported
- Vision
- ✓ accepts images
- Audio
- no
- Moderated
- yes
What it costs in practice
Computed from the current $1.25/M input and $10.00/M output rates. Run your own numbers →
| Job | Tokens | Cost |
|---|---|---|
| Summarize a 50-page report | 30k in / 1.5k out | $0.05 |
| Classify 1,000 customer emails | 500k in / 50k out | $1.12 |
| A month of a busy support chatbot | 5M in / 2M out | $26.25 |
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Quick answers
- How much does OpenAI: GPT-5.1 cost?
- $1.25 per million input tokens and $10.00 per million output tokens.
- What is OpenAI: GPT-5.1's context window?
- 400,000 tokens, roughly 600 pages of text in a single request.
- Does OpenAI: GPT-5.1 support tool calling?
- It supports tool calling, structured output, a reasoning mode.
- Can OpenAI: GPT-5.1 process images?
- Yes, it accepts image input.