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APEX-Agents leaderboard
APEX-Agents
7 models tested · Updated 2026-06-09 · Verified sources only
Claude Fable 5
leads at
43.3%
1
Claude Fable 5
Anthropic ·
Blog/Anthropic
· 2026-06-09
Score as cited in Kimi K3 blog (source: Anthropic official). Fable 5 hit fallbacks on 35% of tasks.
43.3%
2
Kimi K3
Moonshot AI ·
Blog/Moonshot AI
· 2026-07-16
41.0%
3
GPT-5.6 Sol
OpenAI ·
Blog/OpenAI
· 2026-07-09
Score as cited in Kimi K3 blog (source: OpenAI official).
39.9%
4
Claude Opus 4.8
Anthropic ·
Blog/Anthropic
· 2026-06-17
Score as cited in Kimi K3 blog (source: Anthropic official).
39.4%
5
GPT-5.5
OpenAI ·
Blog/OpenAI
· 2026-06-26
Score as cited in Kimi K3 blog (source: OpenAI official).
38.5%
6
DeepSeek V4 Pro
DeepSeek ·
HuggingFace/deepseek-ai-DeepSeek-V4-Pro
· 2026-04-24
Apex (Pass@1). Competitive agent benchmark.
38.3%
7
GLM-5.2
Z.ai ·
Blog/Z.ai
· 2026-06-13
Score as cited in Kimi K3 blog (source: Z.ai official).
35.6%