FAST & FRUGAL · OpenAI
GPT-5.4 Nano
GPT-5.4 Nano is a reasoning, tool-using model from OpenAI in the GPT family, living in Silvergrass Fields (fast & frugal). It reads text, files and images and writes text, with a 400K-token context window and up to 128K tokens of output. On OpenRouter it costs $0.200 per million input tokens and $1.25 per million output tokens.
See GPT-5.4 Nano in 3DOpen in the WorktableView on OpenRouter
Specifications
- Provider
- OpenAI
- Family
- GPT
- Province
- Silvergrass Fields
- Context window
- 400K tokens
- Maximum output
- 128K tokens
- Input / 1M tokens
- $0.200
- Output / 1M tokens
- $1.25
- Accepts
- text, files, images
- Produces
- text
- Reasoning
- Yes
- Tool use
- Yes
- Added to OpenRouter
- 2026-03-17
- Model ID
openai/gpt-5.4-nano- Price history
- —All recorded prices
From the 2026-10-24 catalog snapshot. Prices are US dollars per million tokens.
More GPT models
- GPT-5.4 Mini400K · $0.750 / $4.50
- gpt-oss-safeguard-20b131K · $0.080 / $0.300
- GPT-5 Mini400K · $0.250 / $2.00
- GPT-5 Nano400K · $0.050 / $0.400
- gpt-oss-20b131K · $0.020 / $0.090
- GPT-4o-mini128K · $0.150 / $0.600
- GPT-4o-mini (2024-07-18)128K · $0.150 / $0.600