OpenAI: GPT-5.1 (batch)
The OpenAI GPT-5.1 (batch) is an advanced AI model capable of handling text, images, and file inputs within a vast context length of 400,000 tokens. It supports reasoning and tool integration but does not offer structured output. While its benchmarks across coding and agentic tasks are impressive, covering 3 independent metrics with a blended score of 59.5, the model's pricing at $0.625 per million input tokens and $5.0 per million output tokens might be steep for projects requiring extensive use. This makes it more suitable for users who need high-quality, multi-modal processing but are willing to invest in its capabilities.
Benchmark results
Independent, published benchmarks. Blended score 59.5 across 3 benchmarks, last refreshed 2026-07-29. How scoring works →
| Benchmark | Measures | Score |
|---|---|---|
| AI Index | broad capability composite | 60.8 |
| AI Index Coding | software engineering tasks | 81.5 |
| AI Index Agentic | multi-step tool-using tasks | 34.7 |
- 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 |
|---|---|---|
| #19 | 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.