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Toolathlon leaderboard
Toolathlon
7 models tested · Updated 2026-06-09 · Verified sources only
Claude Mythos 5
leads at
61.7%
1
Claude Mythos 5
Anthropic ·
Blog/OpenAI
· 2026-06-09
Beats GPT-5.6 Sol (58) on Toolathlon; matches Mythos Preview (61.1) and Fable 5 (61.7).
61.7%
2
Claude Opus 4.8
Anthropic ·
Blog/Z.ai
· 2026-06-13
Highest among compared models.
59.9%
3
Gemini 3.5 Flash
Google DeepMind ·
Blog/Google DeepMind
· 2026-06-10
Highest among compared models. Edges GPT-5.5 (55.6).
56.5%
4
GPT-5.5
OpenAI ·
Blog/OpenAI
· 2026-04-23
Toolathlon evaluates tool-use proficiency across diverse real-world tasks.
55.6%
5
DeepSeek V4 Pro
DeepSeek ·
HuggingFace/deepseek-ai
· 2026-04-24
Strong tool-use for open-weights model. Trails GPT-5.5 by 4pp.
51.8%
6
Step 3.7 Flash
StepFun ·
Blog/StepFun
· 2026-05-29
Toolathlon. Multi-tool coordination.
49.5%
7
GLM-5.2
Z.ai ·
Blog/Z.ai
· 2026-06-13
Up from GLM-5.1 (40.7). Agentic tool use.
48.2%