OpenAI: GPT-5 Nano (batch)
The OpenAI GPT-5 Nano (batch) is a versatile AI model capable of processing text, images, and files, with an expansive context length of 400,000 tokens. It supports both reasoning and tool integration, making it suitable for complex tasks that require analysis and interaction with external data sources. While this model excels in handling diverse input modalities and offers robust reasoning capabilities, its benchmark score of 31.6 places it below the coverage threshold, indicating limited independent validation. However, at a pricing point of $0.025 per million input tokens and $0.2 per million output tokens, it is cost-effective for projects with moderate complexity requirements.
Benchmark results
Independent, published benchmarks. Blended score 31.6 across 1 benchmark, last refreshed 2026-07-29. How scoring works →
| Benchmark | Measures | Score |
|---|---|---|
| AI Index | broad capability composite | 32.8 |
- 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.