2 models
Ranked by OpenAI MRCR v2
Reasoning Tools JSON 33.6

Strong small GPT for coding subagents, quick tool use, and high-volume work

openai/gpt-5.4-mini 2026-03-17 400K context $0.75/M input $4.5/M output
31 providers
Reasoning Tools JSON 33.1

Cheapest GPT-5.4 lane for simple routing, extraction, and bulk automation

openai/gpt-5.4-nano 2026-03-17 400K context $0.2/M input $1.25/M output
27 providers