# Gemini 3.8 Flash vs GPT-5.4 Pro

As of Oct 15, 2026, Gemini 3.8 Flash leads GPT-5.4 Pro in 3 of 3 shared categories: Math, Science, and Abstraction (ARC).

Gemini 3.8 Flash: $1.5 per 1M blended tokens.

GPT-5.4 Pro: $67.5 per 1M blended tokens.

Gemini 3.8 Flash: closed weights.

GPT-5.4 Pro: closed weights.

- Which to pick, Math: As of Oct 15, 2026, Gemini 3.8 Flash leads GPT-5.4 Pro in Math at #5 against #6.
- Which to pick, Science: As of Oct 15, 2026, Gemini 3.8 Flash leads GPT-5.4 Pro in Science at #4 against #6.
- Which to pick, Abstraction (ARC): As of Oct 15, 2026, Gemini 3.8 Flash leads GPT-5.4 Pro in Abstraction (ARC) at #1 against #8.

As of Oct 15, 2026, Gemini 3.8 Flash is state of the art on best per dollar in General LLM (since Oct 14, 2026; sources LMArena Text (style-controlled, overall); methodology v1.0).

As of Oct 15, 2026, GPT-5.4 Pro is a former state-of-the-art holder in Math (since Apr 16, 2026; sources Humanity's Last Exam; methodology v1.0).