Frontier Research Mathematics
Riemann-bench
We evaluate AI models on advanced mathematical problems requiring deep reasoning and novel synthesis. Our benchmark features cutting-edge problems sourced from leading mathematicians, including Ivy League professors, PhD IMO medalists, and graduate students at the top of their field.
Riemann-bench Leaderboard
1

GPT
5.6 Sol (Max reasoning)
74.4
%
1

GPT
6 Astra (Max reasoning)
72
%
1

Claude
Opus 5.5 (Adaptive/Max)
69.6
%
1

Claude
Opus 5 (Adaptive/Max)
68
%
1

GPT
5.6 Terra (Max reasoning)
66.4
%
1

Claude
Fable 5.1 (Adaptive/Max)
65.6
%
1

GPT
6 Sol (Max reasoning)
64.8
%
1

Claude
Fable 5 (Adaptive/Max)
60
%
1

GPT
6 Luna (Max reasoning)
59.2
%
1

GPT
5.5 (xHigh reasoning)
55.2
%
1

Gemini
3.8 Flash (High reasoning)
51.2
%
1

Claude
Opus 4.8 (Adaptive/Max)
47.2
%
1

GPT
5.4 (xHigh reasoning)
41.6
%
1

Gemini
3.7 Flash (High reasoning)
39.2
%
1

DeepSeek
V4 Pro (Max reasoning)
38.4
%
1

Grok
4.5 (High reasoning)
38.4
%
1

GPT
5.2 (xHigh reasoning)
37.6
%
1

Kimi
K3 (Max reasoning)
37.6
%
1

Gemini
3.5 Flash (High reasoning)
36.8
%
1

Gemini
3.1 Pro (High reasoning)
33.6
%
1

Claude
Opus 4.7 (Adaptive/Max)
32.8
%
1

Gemini
3.6 Flash (High reasoning)
30.4
%
1

Muse
Spark 1.3 (xHigh reasoning)
28
%
1

Claude
Opus 4.6 (Adaptive/Max)
27.2
%
1

DeepSeek
V4.1 Flash (Max reasoning)
24
%
1

Hy
Hy4 Preview (High reasoning)
24
%
1

DeepSeek
V4 Flash Vision (experimental) (High reasoning)
23.2
%
1

Muse
Spark 1.2 (xHigh reasoning)
23.2
%
1

Muse
Spark 1.1 (xHigh reasoning)
20.8
%
1

Qwen
3.7 Max (Thinking on)
15.2
%
1

Qwen
3.8 Max (xHigh reasoning)
15.2
%
1

Inkling
Inkling (xHigh reasoning)
15.2
%
1

Muse
Glimmer 30B (xHigh reasoning)
13.6
%
1

GLM
5.3 (Max reasoning)
12
%
1

Kimi
K2.5 (Thinking on)
12
%
1

Claude
Opus 4.5 (Adaptive/Max)
11.2
%
1

Gemini
3.5 Flash-Lite (High reasoning)
11.2
%
1

DeepSeek
V4 Flash (Max reasoning)
10.4
%
1

GLM
5.2 (Max reasoning)
10.4
%
1

GLM
5.3 Flash (Max reasoning)
8.8
%
1

DeepSeek
V3.2 (High reasoning)
8
%
1

Kimi
K2.6 (Thinking on)
7.2
%
1

DeepSeek
V4 Pro (preview) (xHigh reasoning)
5.6
%
1

MAI
Thinking 1
4.8
%

