LLMAPI only
GPT-5.4
OpenAI
Updated May 21, 2026 · Benchmarks via Artificial Analysis, specs & pricing via OpenRouter · Methodology · Report an error
Superseded by GPT-5.5
Specifications
- Type
- LLM
- Access
- API only
- Released
- March 5, 2026
- License
- Proprietary
- Context window
- 1,050,000 tokens
- Output speed
- 84 tok/s
- Latency (TTFT)
- 0.63s
- Input
- Text, Image
- Output
- Text
- API pricing
- $2.50 in · $15.00 out / 1M tokens
Capabilities
Function callingStructured outputWeb search
Benchmarks
Our take
First mainline OpenAI model with built-in computer use and a 1M-token context, launched as Thinking and Pro tiers.