GPT-5 Nano
OpenAI · Multimodal · Released Aug 2025
OpenAI's smallest general-purpose model in the GPT-5 family, optimized for speed and low latency.
- Strengths
- Delivers fast inference with minimal computational overhead while maintaining reasoning capability across a 400k token context window.
- Best for
- High-throughput applications, real-time interactions, and tasks where latency matters more than maximum reasoning depth.
- Limitations
- Sits at the bottom of the GPT-5 reasoning tier; GPT-5 Mini offers stronger reasoning for tasks that can tolerate higher latency.
Input / 1M
$0.05
Output / 1M
$0.4
Cached input / 1M
$0.005
Context window
400K
Price history
Input (solid)Output (dashed)
Price change
- 30d
- in — out —
- 90d
- in decreased 0.0% out decreased 0.0%
- 1y
- in decreased 0.0% out decreased 0.0%
- Since launch
- in decreased 0.0% out decreased 0.0%
Snapshots
| Effective | Input | Output | Cached in | Note | Source |
|---|---|---|---|---|---|
| 13 Jul 2026 | $0.05 | $0.4 | $0.005 | Imported from OpenRouter | openrouter.ai |
| 11 Jun 2026 | $0.05 | $0.4 | $0.01 | Imported from OpenRouter | openrouter.ai |