GPT-5.4 Mini
OpenAI · Multimodal · Released Mar 2026
A lightweight variant of GPT-5.4 with a 400k token context window, optimized for speed and efficiency in high-volume workloads.
- Strengths
- Delivers fast inference and resource efficiency while maintaining strong reasoning and coding capabilities across the 400k token context.
- Best for
- High-volume applications where speed and efficiency matter more than the maximum reasoning capabilities of GPT-5.4 Pro.
- Limitations
- Smaller and faster than GPT-5.4 Pro, so suited to different workload profiles rather than serving as a general replacement for the full-scale frontier model.
Input / 1M
$0.75
Output / 1M
$4.50
Cached input / 1M
$0.075
Context window
400K
Price history
Snapshots
| Effective | Input | Output | Cached in | Note | Source |
|---|---|---|---|---|---|
| 11 Jun 2026 | $0.75 | $4.50 | $0.075 | Imported from OpenRouter | openrouter.ai |