OpenAI: GPT-5.4 Nano
The OpenAI GPT-5.4 Nano is an advanced AI model capable of handling text, file, and image inputs within a context length of 400,000 tokens. It supports reasoning and can work with tools for more versatile applications; however, it does not offer structured output or open weights access. This model stands out as a strong contender in its price range, offering $0.2 per million input tokens and $1.25 per million output tokens. With a blended benchmark score of 68.6 across three independent evaluations, it is suitable for users prioritizing cost-effectiveness over the highest performance metrics.
Benchmark results
Independent, published benchmarks. Blended score 68.6 across 3 benchmarks, last refreshed 2026-08-13. How scoring works →
| Benchmark | Measures | Score |
|---|---|---|
| AI Index | broad capability composite | 65.5 |
| AI Index Coding | software engineering tasks | 92.5 |
| AI Index Agentic | multi-step tool-using tasks | 49.0 |
- Model ID
- openai/gpt-5.4-nano
- Vendor
- openai
- Released
- March 2026
- Tokenizer
- GPT
- Input Modalities
- file, image, text
- 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 $0.20/M input and $1.25/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 | $0.16 |
| A month of a busy support chatbot | 5M in / 2M out | $3.50 |
Category rankings
Where OpenAI: GPT-5.4 Nano places across the 11 categories it ranks in. How we rank →
| # | Category | Score |
|---|---|---|
| #8 | Bulk Data LabelingData · of 25 ranked | 134 |
| #10 | Dataset AnnotationResearch · of 25 ranked | 143 |
| #12 | Customer SupportBusiness · of 25 ranked | 133 |
| #14 | JSON ExtractionData · of 25 ranked | 147 |
| #16 | Image CaptioningVision · of 25 ranked | 121 |
| #17 | Short-Form SummarizationWriting · of 25 ranked | 130 |
| #17 | Chat CompanionPersonal · of 25 ranked | 130 |
| #18 | Email DraftingWriting · of 25 ranked | 126 |
| #18 | Language LearningEducation · of 25 ranked | 126 |
| #19 | Code CompletionCode · of 25 ranked | 133 |
| #19 | Trivia & General KnowledgePersonal · of 25 ranked | 120 |
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Quick answers
- How much does OpenAI: GPT-5.4 Nano cost?
- $0.20 per million input tokens and $1.25 per million output tokens.
- What is OpenAI: GPT-5.4 Nano's context window?
- 400,000 tokens, roughly 600 pages of text in a single request.
- Does OpenAI: GPT-5.4 Nano support tool calling?
- It supports tool calling, structured output, a reasoning mode.
- Can OpenAI: GPT-5.4 Nano process images?
- Yes, it accepts image input.