Frontier models

Start with GPT-5.5 for complex reasoning and coding, or choose a Claude Code model when your workflow needs the Claude CLI route.

gpt-5.5

Frontier

New class of intelligence for pro work.

Model ID

Reasoning

nonelowmediumhighxhigh

Input125 cr / per 1M tokens

Output750 cr / per 1M tokens

SpeedFast

opus 4.7

claude-opus-4.7

Frontier

Frontier Claude Code for complex reasoning.

Model ID

Reasoning

lowmediumhigh

Input125 cr / per 1M tokens

Output625 cr / per 1M tokens

SpeedMedium

5.3-codex-spark

Coding

Most capable agentic coding model.

Model ID

Reasoning

lowmediumhighxhigh

Input43.75 cr / per 1M tokens

Output350 cr / per 1M tokens

SpeedFaster