OpenAI: GPT-5.1 (batch)
OpenAI GPT-5.1 (batch) is a versatile AI model capable of processing text, images, and files, with an extensive context length of 400,000 tokens and robust support for reasoning tools. While it offers structured output, this feature is not explicitly enabled in the current configuration. This model should be considered by users requiring diverse input modalities and strong reasoning capabilities, despite its higher price point at $0.625 per million input tokens and $5.0 per million output tokens. With a blended benchmark score of 59.5 across three independent benchmarks, GPT-5.1 delivers solid performance but may not outshine more specialized models in highly technical or narrowly defined tasks.
Benchmark results
Independent, published benchmarks. Blended score 59.5 across 3 benchmarks, last refreshed 2026-08-13. How scoring works →
| Benchmark | Measures | Score |
|---|---|---|
| AI Index | broad capability composite | 61.8 |
| AI Index Coding | software engineering tasks | 81.5 |
| AI Index Agentic | multi-step tool-using tasks | 35.7 |
- Model ID
- openai/gpt-5.1:batch
- 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 $0.62/M input and $5.00/M output rates. Run your own numbers →
| Job | Tokens | Cost |
|---|---|---|
| Summarize a 50-page report | 30k in / 1.5k out | $0.03 |
| Classify 1,000 customer emails | 500k in / 50k out | $0.56 |
| A month of a busy support chatbot | 5M in / 2M out | $13.12 |
Category rankings
Where OpenAI: GPT-5.1 (batch) places across the 1 category it ranks in. How we rank →
| # | Category | Score |
|---|---|---|
| #23 | Image CaptioningVision · of 25 ranked | 120 |
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Quick answers
- How much does OpenAI: GPT-5.1 (batch) cost?
- $0.62 per million input tokens and $5.00 per million output tokens.
- What is OpenAI: GPT-5.1 (batch)'s context window?
- 400,000 tokens, roughly 600 pages of text in a single request.
- Does OpenAI: GPT-5.1 (batch) support tool calling?
- It supports tool calling, structured output, a reasoning mode.
- Can OpenAI: GPT-5.1 (batch) process images?
- Yes, it accepts image input.