Coding · Benchmark profile
Machine-learning engineering benchmark where agents compete on Kaggle-style tasks; Google reports Average Position Score on the Partial-30 subset.
Data verified 21 Jul 2026 · Methodology 1.6.0
Benchmark score on MLE-Bench
Claude Sonnet 5 leads at 66.9%, followed by Gemini 3.6 Flash (63.9%) and Gemini 3.5 Flash (49.7%).
Visual analysis
Switch between model placement, score distribution and descriptive provider averages. Every view uses the same sourced leaderboard.
6 ranked models · higher is better
| Model | Rank | Provider | Score |
|---|---|---|---|
| Claude Sonnet 5 | #1 | Anthropic | 66.9% |
| Gemini 3.6 Flash | #2 | 63.9% | |
| Gemini 3.5 Flash | #3 | 49.7% | |
| GPT-5.6 Luna | #4 | OpenAI | 47.6% |
| Grok 4.5 | #5 | xAI | 43.2% |
| Gemini 3.1 Pro Preview | #6 | 42.6% |
One best score per model · higher is better
| Rank | Model | Provider | License | Evidence use | Score |
|---|---|---|---|---|---|
| #1 | Claude Sonnet 5 claude-sonnet-5 | Anthropic | closed | Reference only | 66.9% |
| #2 | Gemini 3.6 Flash gemini-3.6-flash | closed | Reference only | 63.9% | |
| #3 | Gemini 3.5 Flash gemini-3.5-flash | closed | Reference only | 49.7% | |
| #4 | GPT-5.6 Luna gpt-5.6-luna | OpenAI | closed | Reference only | 47.6% |
| #5 | Grok 4.5 grok-4.5 | xAI | closed | Reference only | 43.2% |
| #6 | Gemini 3.1 Pro Preview gemini-3.1-pro-preview | closed | Reference only | 42.6% |
The top of this snapshot is led by Claude Sonnet 5 at 66.9%; third place is 17.2 points behind. The top-6 spread is 24.3 points.
About MLE-Bench
Machine-learning engineering benchmark where agents compete on Kaggle-style tasks; Google reports Average Position Score on the Partial-30 subset. Results stay tied to the exact model variant and evaluation system. Multiple systems for the same model use the best published score on this page; overall Lumina scoring uses the median of ranking-eligible rows.
Open benchmark source ↗FAQ
Machine-learning engineering benchmark where agents compete on Kaggle-style tasks; Google reports Average Position Score on the Partial-30 subset.
Claude Sonnet 5 by Anthropic currently leads with 66.9%.
6 models in the LuminaBench cohort have a qualifying score on this benchmark.
No. This benchmark is display-only and does not enter the overall Lumina composite.
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