# GPT-6 Astra vs Kimi K2 5

As of Oct 15, 2026, GPT-6 Astra leads Kimi K2 5 in 2 of 2 shared categories: Math and Abstraction (ARC).

GPT-6 Astra: $20 per 1M blended tokens.

Kimi K2 5: $1.0000000000000002 per 1M blended tokens.

GPT-6 Astra: closed weights.

Kimi K2 5: open weights.

- Which to pick, Math: As of Oct 15, 2026, GPT-6 Astra leads Kimi K2 5 in Math at #1 against #17.
- Which to pick, Abstraction (ARC): As of Oct 15, 2026, GPT-6 Astra leads Kimi K2 5 in Abstraction (ARC) at #1 against #35.

As of Oct 15, 2026, GPT-6 Astra is state of the art in Math (since Sep 28, 2026; sources Humanity's Last Exam; methodology v1.0).

As of Oct 15, 2026, Kimi K2 5 is ranked #17 in Math (since Oct 15, 2026; sources Humanity's Last Exam; methodology v1.0).