2 models
Ranked by Design Arena: website
JSON 1036.0

Deliberate o-series reasoner for hard math, coding, and multi-step analysis

openai/o3 2025-04-16 200K context $2/M input $8/M output
23 providers
Reasoning Tools JSON 985.0

Fast o-series model for compact reasoning, coding, and tool use

openai/o4-mini 2025-04-16 200K context $1.1/M input $4.4/M output
22 providers