High-capability model for reasoning, chat, and professional workflows.
API ID
gpt-5.4Overview
- Context
- 1,050,000 tokens
- Max output
- 128,000 tokens
- Input
- Text, Image
- Output
- Text
- Released
- Mar 2026
- API compatibility
- OpenAI Chat Completions
Recommended for
- General-purpose reasoning
- Long-context analysis
- Production assistants
Keep in mind: A specialized AI Service matches the workload more directly
Supported features
- Function calling: Supported
- Structured outputs: Supported
- Vision: Supported
- Streaming: Supported
- Reasoning: Supported
- Prompt caching: Supported
Supported parameters
View API reference function_callfunctionslogprobsmax_completion_tokensmax_tokensnparallel_tool_callsprompt_cache_keyreasoning_effortresponse_formatseedservice_tierstorestreamstream_optionstemperaturetool_choicetoolstop_logprobstop_pverbosity