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Best LLM for research-level math

GPT-6 Astra leads
93.7%
models ranked
80

FrontierMath, tiers 1 to 3 · read October 21

As of October 21, 2026, OpenAI GPT-6 Astra leads 80 models on FrontierMath, tiers 1 to 3 with 93.7%, ahead of OpenAI GPT-6.1 Sol (93.7%) and Anthropic Claude Opus 5.5 (91.2%).

The full best LLM for math ranking combines this benchmark with others.

Top 20 of 80, higher is better

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Best LLM for research-level math
Rank Model FrontierMath, tiers 1 to 3 Coding evidence Coding index Output $/Mtok
1
GPT-6 Astra OpenAI
93.7%
85.1 $50.00
2
GPT-6.1 Sol OpenAI
93.7%
82.4 $10.00
3
Claude Opus 5.5 Anthropic
91.2%
88.8 $20.00
4
Claude Fable 5.1 Anthropic
90.2%
84.2 $50.00
5
GPT-6 Sol OpenAI
89.8%
76.0 $10.00
6
GPT-5.6 Sol OpenAI
89.1%
73.5 $20.00
7
Claude Sonnet 5.5 Anthropic
88.8%
87.3 $10.00
8
GPT-5.5 Pro OpenAI
87.7%
Not benchmarked $180.00
9
Claude Fable 5 Anthropic
87.0%
79.3 $50.00
10
86.0%
81.0 $10.00
11
GPT-5.6 Terra OpenAI
86.0%
63.9 $12.00
12
Claude Opus 5 Anthropic
85.6%
83.0 $25.00
13
GPT-5.5 OpenAI
85.3%
71.3 $30.00
14
GPT-5.4 Pro OpenAI
82.5%
Not benchmarked $180.00
15
GPT-5.6 Luna OpenAI
82.1%
58.0 $1.20
16
Claude Opus 4.8 Anthropic
80.0%
65.0 $25.00
17
GPT-6 Luna OpenAI
78.9%
57.3 $0.50
18
GPT-5.4 OpenAI
78.6%
64.4 $15.00
19
Claude Haiku 5.5 Anthropic
75.1%
70.7 $0.50
20
74.7%
62.4 $6.00

How this list is built

Generated from the dataset on every refresh. Nobody picks the order by hand.

Models by their FrontierMath, tiers 1 to 3 result, as the board publishes it, best first. Unpublished research-level math problems written by mathematicians, run by Epoch AI. Share solved.

Other lists

Rankings beyond coding · Methodology