Get Started with GPT-5.4 Mini on OpenRouter
OpenRouter offers access to GPT-5.4 Mini with a 400000 context window. Multi-provider LLM aggregator offering unified API access to 300+ models from all major labs and emerging providers, with automatic failover for reliability.
Pricing
| Type | Price (per 1M) |
|---|---|
| Input tokens | $0.75 |
| Output tokens | $4.50 |
Capabilities
VisionMultimodalReasoningFunction CallingTool UseStructured OutputsCode Execution
About GPT-5.4 Mini
GPT-5.4 Mini is a smaller, cost-efficient variant of GPT-5.4 with a 400K token context window. Designed for tasks requiring long-context processing at lower cost. Model ID: gpt-5.4-mini.
Model Specs
Released2026-03-05
Context400K
ArchitectureDecoder Only
Knowledge cutoff2025-08