# Best AI model per dollar for math — October 2026

As of Oct 15, 2026, GPT-6 Astra & Gemini 3.1 Pro Preview & Claude Sonnet 5.5 & Gemini 3.8 Flash & Claude Haiku 5.5 are tied for state of the art in Math, best per dollar (tracked since Oct 14, 2026; sources Humanity's Last Exam; methodology v1.0).

Category board: https://isitsota.com/c/math?slice=pareto

## Top 10

- #1 GPT-6 Astra
- #1 Gemini 3.1 Pro Preview
- #1 Claude Sonnet 5.5
- #1 Gemini 3.8 Flash
- #1 Claude Haiku 5.5
- #2 Claude Fable 5.1
- #6 GPT-5.4 Pro
- #9 GPT-5.4
- #10 Claude Opus 4.7
- #11 Claude Opus 4.6

## Crown changes


## Weights

- Humanity's Last Exam: primary, weight 1
- FrontierMath: primary, weight 1
- LMArena Text (style-controlled, math): primary, weight 0.8