OTIS Mock AIME leaderboard: which LLMs score highest
OTIS Mock AIME (competition maths (AIME 2024-25 style)) currently has scores for 188 models. The top score is 100.0% by Claude Fable 5.1 (max); the median model scores 57.8% and the lowest scores 0.0%.
| # | Model | Organisation | OTIS Mock AIME score | Cheapest input $/M | Source | Captured |
|---|---|---|---|---|---|---|
| 1 | Claude Fable 5.1 (max) | Anthropic | 100.0% | $10.00 | Epoch AI Benchmarking Hub | 2026-10-05 |
| 2 | Claude Opus 5.5 (max) | Anthropic | 100.0% | $4.00 | Epoch AI Benchmarking Hub | 2026-10-05 |
| 3 | Claude Sonnet 5.5 (max) | Anthropic | 100.0% | $2.00 | Epoch AI Benchmarking Hub | 2026-10-05 |
| 4 | GPT-5.6 Sol (max) | OpenAI | 100.0% | $2.00 | Epoch AI Benchmarking Hub | 2026-10-05 |
| 5 | GPT-6 Astra (max) | OpenAI | 100.0% | $10.00 | Epoch AI Benchmarking Hub | 2026-10-05 |
| 6 | GPT-6 Sol (max) | OpenAI | 100.0% | $2.00 | Epoch AI Benchmarking Hub | 2026-10-05 |
| 7 | GPT-6.1 Sol (max) | OpenAI | 100.0% | $2.00 | Epoch AI Benchmarking Hub | 2026-10-05 |
| 8 | Qwen3.8 Max (0902) (xhigh) | Alibaba | 100.0% | $1.65 | Epoch AI Benchmarking Hub | 2026-10-05 |
| 9 | Claude Fable 5 (max) | Anthropic | 99.7% | $10.00 | Epoch AI Benchmarking Hub | 2026-10-05 |
| 10 | GPT-5.6 Terra (max) | OpenAI | 99.7% | $2.00 | Epoch AI Benchmarking Hub | 2026-10-05 |
| 11 | Qwen3.8 Max (xhigh) | Alibaba | 99.4% | $1.65 | Epoch AI Benchmarking Hub | 2026-10-05 |
| 12 | Grok 4.6 (xhigh) | xAI | 99.2% | $1.25 | Epoch AI Benchmarking Hub | 2026-10-05 |
| 13 | Claude Opus 5 (max) | Anthropic | 98.9% | $5.00 | Epoch AI Benchmarking Hub | 2026-10-05 |
| 14 | Gemini 3.8 Flash (high) | Google DeepMind | 98.9% | $0.750 | Epoch AI Benchmarking Hub | 2026-10-05 |
| 15 | GPT-6 Luna (max) | OpenAI | 98.9% | $0.100 | Epoch AI Benchmarking Hub | 2026-10-05 |
| 16 | DeepSeek V4 Pro 0813 (max) | DeepSeek | 98.6% | $0.660 | Epoch AI Benchmarking Hub | 2026-10-05 |
| 17 | GPT-5.6 Luna (max) | OpenAI | 98.3% | $0.200 | Epoch AI Benchmarking Hub | 2026-10-05 |
| 18 | Grok 4.7 (xhigh) | xAI | 98.1% | $2.00 | Epoch AI Benchmarking Hub | 2026-10-05 |
| 19 | Grok 4.5 (high) | xAI | 97.8% | $2.00 | Epoch AI Benchmarking Hub | 2026-10-05 |
| 20 | Gemini 3.7 Flash (high) | Google DeepMind | 97.2% | $0.750 | Epoch AI Benchmarking Hub | 2026-10-05 |
| 21 | Kimi K3 (max) | Moonshot | 97.2% | $1.29 | Epoch AI Benchmarking Hub | 2026-10-05 |
| 22 | DeepSeek v4 Pro (max) | DeepSeek | 96.7% | $0.435 | Epoch AI Benchmarking Hub | 2026-10-05 |
| 23 | Kimi K2.6 | Moonshot | 96.1% | $0.650 | Epoch AI Benchmarking Hub | 2026-10-05 |
| 24 | GPT-5.2 (xhigh) | OpenAI | 96.1% | $1.75 | Epoch AI Benchmarking Hub | 2026-10-05 |
| 25 | Kimi K2.7 Code | Moonshot | 95.6% | $0.671 | Epoch AI Benchmarking Hub | 2026-10-05 |
| 26 | Qwen3.7 Max | Alibaba | 95.6% | $1.25 | Epoch AI Benchmarking Hub | 2026-10-05 |
| 27 | GPT-5.4 (xhigh) | OpenAI | 95.3% | $2.50 | Epoch AI Benchmarking Hub | 2026-10-05 |
| 28 | DeepSeek V4 Flash 0731 (max) | DeepSeek | 94.4% | $0.015 | Epoch AI Benchmarking Hub | 2026-10-05 |
| 29 | GLM-5.3-Flash (max) | Z.ai (Zhipu AI) | 93.9% | $0.110 | Epoch AI Benchmarking Hub | 2026-10-05 |
| 30 | GLM-5.1 | Z.ai (Zhipu AI) | 93.3% | $1.05 | Epoch AI Benchmarking Hub | 2026-10-05 |
| 31 | grok-4.3 (high) | xAI | 93.3% | $1.25 | Epoch AI Benchmarking Hub | 2026-10-05 |
| 32 | Qwen 3.6 Plus (2026-04-02) | Alibaba | 93.3% | — | Epoch AI Benchmarking Hub | 2026-10-05 |
| 33 | Qwen3.7 Plus | Alibaba | 93.3% | $0.282 | Epoch AI Benchmarking Hub | 2026-10-05 |
| 34 | grok-4.20-0309-reasoning | xAI | 92.2% | $1.25 | Epoch AI Benchmarking Hub | 2026-10-05 |
| 35 | Kimi K2.5 (Fireworks) | Moonshot | 92.2% | $0.450 | Epoch AI Benchmarking Hub | 2026-10-05 |
| 36 | Gemini 3 Pro Preview | Google DeepMind | 91.4% | $2.00 | Epoch AI Benchmarking Hub | 2026-10-05 |
| 37 | GPT-5 (high) | OpenAI | 91.4% | $1.25 | Epoch AI Benchmarking Hub | 2026-10-05 |
| 38 | Claude Opus 4.6 (max) | Anthropic | 91.1% | $5.00 | Epoch AI Benchmarking Hub | 2026-10-05 |
| 39 | GLM-5.3 (max) | Z.ai (Zhipu AI) | 91.1% | $0.070 | Epoch AI Benchmarking Hub | 2026-10-05 |
| 40 | Qwen 3.6 Max (Preview) | Alibaba | 91.1% | — | Epoch AI Benchmarking Hub | 2026-10-05 |
| 41 | Qwen3.6 27B | Alibaba | 91.1% | $0.150 | Epoch AI Benchmarking Hub | 2026-10-05 |
| 42 | Inkling Small (xhigh) | Thinking Machines | 90.0% | $0.450 | Epoch AI Benchmarking Hub | 2026-10-05 |
| 43 | Muse Spark | Meta AI | 88.9% | — | Epoch AI Benchmarking Hub | 2026-10-05 |
| 44 | GPT-5.4 mini (xhigh) | OpenAI | 88.9% | $0.750 | Epoch AI Benchmarking Hub | 2026-10-05 |
| 45 | gpt-oss-120b (high) | OpenAI | 88.9% | $0.030 | Epoch AI Benchmarking Hub | 2026-10-05 |
| 46 | Inkling (xhigh) | Thinking Machines | 88.9% | $0.950 | Epoch AI Benchmarking Hub | 2026-10-05 |
| 47 | Qwen3.5 397B-A17B | Alibaba | 88.9% | $0.164 | Epoch AI Benchmarking Hub | 2026-10-05 |
| 48 | GPT-5.1 (high) | OpenAI | 88.6% | $1.25 | Epoch AI Benchmarking Hub | 2026-10-05 |
| 49 | Claude Opus 4.7 (max) | Anthropic | 86.7% | $5.00 | Epoch AI Benchmarking Hub | 2026-10-05 |
| 50 | GPT-5 mini (high) | OpenAI | 86.7% | $0.250 | Epoch AI Benchmarking Hub | 2026-10-05 |
Compare all benchmarks side by side on the live leaderboard →
Among the ten highest scorers, the cheapest listed API price belongs to Qwen3.8 Max (0902) (xhigh) at $1.65 per million input tokens (score 100.0%).
What OTIS Mock AIME measures
This board uses mock exams written in the style of the American Invitational Mathematics Examination (AIME), a competition for strong high-school mathematicians in which every answer is an integer from 0 to 999.
How to read these scores
Scores are percentages (higher is better): the share of questions or tasks the model completed correctly. Where a model is listed at several reasoning efforts, only its highest-effort row is shown. See the methodology for how rows are chosen.
Where the data comes from
Epoch AI Benchmarking Hub (CC BY 4.0). Scores were last captured 2026-10-05; the Captured column gives each row's date.