Reasoning
Which model can do the mathematics and the science. Four answers — best value for money, best there is, best with open weights, cheapest that still works.
Which model can do the mathematics and the science. 196 measured, 184 of them for sale, and 144 of those stand on two or more of these boards — only those can be picked.
- Best value for money · Best open sourceDeepSeek V4.1 Flash 1017DeepSeek · 15th of 142 on Mystery game puzzles · 2 boards$0.15→$0.6per Mtok in / out21 sellers
- Best frontierClaude Opus 5.5Anthropic · 2nd of 86 on Artificial Analysis · Intelligence Index · 3 boards$4→$20per Mtok in / out27 sellers
- CheapestDeepSeek R1 Distill QWEN 14BDeepSeek · 28th of 108 on Math level 5 · 2 boards$0.07→$0.07per Mtok in / out6 sellers
Judged on
- FrontierMath (Tiers 1-3)
- Humanity's Last Exam (Epoch AI replication)
- GPQA Diamond
- ARC-AGI-1 (Semi-Private)
- ARC-AGI-2 (Semi-Private)
- ARC-AGI-3 (Semi-Private)
- Artificial Analysis · Intelligence Index
- Weirdml — Epoch AI
- Critpt — Epoch AI
- Chess puzzles — Epoch AI
- Math level 5 — Epoch AI
- Arc agi — Epoch AI
- Arc agi 2 — Epoch AI
- Simplebench — Epoch AI
- Proofbench — Epoch AI
- Frontiermath tier 4 — Epoch AI
- Mystery game puzzles — Epoch AI
- Enigma eval — Epoch AI
- Gbaeval — Epoch AI
- ARC-AGI-1 (Public Eval)
- ARC-AGI-2 (Public Eval)
Capability is a model's mean percentile across the boards below, on each board's widest metric. Prices are quoted as you are billed them; where a model charges separately to read and to write, the two are ranked against each other at one part in to three parts out, which for this field puts the middle at $1.41 per million tokens. Best value for money is the most capable at or under that middle, and cheapest is the least expensive of those above the middle for capability — without that second floor the cheapest answer is reliably the worst model in the category. Figures read 2026-10-31.