OpenAI: GPT-5 Nano (batch)
The OpenAI GPT-5 Nano (batch) is a versatile AI model capable of processing text, images, and files, with a context length of 400,000 tokens and support for reasoning tools. It excels in handling complex tasks but lacks structured output features. This model stands out as a solid choice for those needing robust multi-modal capabilities at a relatively affordable price point, with input costing $0.025 per thousand tokens and outputs $0.2. While its blended benchmark score of 32.1 across multiple independent evaluations is promising, users should consider the lack of structured output support and open weights as potential limitations.
Benchmark results
Independent, published benchmarks. Blended score 32.1 across 1 benchmark, last refreshed 2026-08-13. How scoring works →
| Benchmark | Measures | Score |
|---|---|---|
| AI Index | broad capability composite | 33.2 |
- Model ID
- openai/gpt-5-nano:batch
- Vendor
- openai
- Released
- August 2025
- Tokenizer
- GPT
- Input Modalities
- text, image, 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 $0.03/M input and $0.20/M output rates. Run your own numbers →
| Job | Tokens | Cost |
|---|---|---|
| Summarize a 50-page report | 30k in / 1.5k out | under $0.01 |
| Classify 1,000 customer emails | 500k in / 50k out | $0.02 |
| A month of a busy support chatbot | 5M in / 2M out | $0.53 |
Category rankings
Where OpenAI: GPT-5 Nano (batch) places across the 5 categories it ranks in. How we rank →
| # | Category | Score |
|---|---|---|
| #7 | Social Media PostsWriting · of 25 ranked | 120 |
| #7 | Voice Assistant BackendVoice · of 25 ranked | 124 |
| #7 | Cheap Bulk InferenceCost · of 25 ranked | 137 |
| #12 | Self-Hosted / LocalCost · of 25 ranked | 117 |
| #13 | Real-Time ChatLatency · of 25 ranked | 118 |
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Quick answers
- How much does OpenAI: GPT-5 Nano (batch) cost?
- $0.03 per million input tokens and $0.20 per million output tokens.
- What is OpenAI: GPT-5 Nano (batch)'s context window?
- 400,000 tokens, roughly 600 pages of text in a single request.
- Does OpenAI: GPT-5 Nano (batch) support tool calling?
- It supports tool calling, structured output, a reasoning mode.
- Can OpenAI: GPT-5 Nano (batch) process images?
- Yes, it accepts image input.