All Models

OpenAI: GPT-5.4

Reasoning Tool Calling Attachments

GPT-5.4 is OpenAI’s latest frontier model, unifying the Codex and GPT lines into a single system. It features a 1M+ token context window (922K input, 128K output) with support for...

Providers 1
Released Mar 6, 2026
Input Modalities image, pdf, text
Output Modalities text
Tarsk Use coding

Benchmarks

56.8
Intelligence Index
57.3
Coding Index

Available Providers (1)

Provider Model ID Input Cost Output Cost Context Max Output Docs
Kilo Gateway openai/gpt-5.4 $2.50/MTok $15.00/MTok 1.1M 128K

Capabilities

Reasoning
Tool Calling
Attachments
Open Weights
Structured Output