2 models
Ranked by Agentic Index
Tools 26.5

Original GPT-5 workhorse for reasoning, coding, writing, and tool workflows

openai/gpt-5 2025-08-07 400K context $1.25/M input $10/M output
30 providers
Tools Open weights 21.7

Earlier Kimi frontier model for long-context agents, coding, and multimodal work

moonshotai/kimi-k2.5 2026-01 262.144K context $0.3/M input $1.9/M output
46 providers