Scale AI - MCP Atlas: leaderboard

Evaluates real-world tool use through the Model Context Protocol. Part of Scale's SEAL agentic benchmark suite.

Metric: Score. Source: github.com. Source: scale.com. Source: benchmarklist.com. 34 models tracked.

Top models

#ModelScoreOverall rank
1Muse Spark 1.188.1#52
2Claude Fable 5.187.2#9
3Claude Opus 5 (Max)87#12 (Claude Opus 5)
4GLM-5.3 (Max)86.8#39 (GLM-5.3)
5Claude Opus 5 (xHigh)85.8#12 (Claude Opus 5)
6Qwen 3.8 2.4T A95B (xHigh)84.5
7GLM-5.384.2#39
8Hy4 preview83.7#38
9Gemini 3.5 Flash (High)83.6#60 (Gemini 3.5 Flash)
10Claude Fable 5 (Max)83.3#16 (Claude Fable 5)
11Kimi K3 (Max)82.3#30 (Kimi K3)
12Claude Opus 4.8 (Max)82.2#37 (Claude Opus 4.8)
13Muse Spark82.2#64
14GPT-5.6 Sol (Max)81.8#19 (GPT-5.6 Sol)
15Seed 2.1 Turbo80.3#86

No result here: #3 Claude Opus 5.5, #6 GPT-6 Astra, #7 GPT-6.1 Sol.

Interactive version: theaggregate.ai/benchmark?slug=scale-ai-mcp-atlas · How It Works · Data refreshed daily, snapshot 2026-10-20.