LOCA-bench: leaderboard

Metric: Mean task success rate (%) over the seven environment description lengths (8K to 256K tokens, 75 instances each, 525 in all); 15 seed agentic tasks adapted from Toolathlon with five seeded environment states each, on local mock servers (Canvas, email, calendar, BigQuery, Snowflake, WooCommerce, spreadsheets and more); ReAct scaffold, each model at its maximum context window with the oldest context truncated beyond it; success checked by rule-based scripts on the final environment state; higher is better. Source: arxiv.org. Saturation forecast: Around April 2027. 7 models tracked.

Top models

#ModelScoreOverall rank
1GPT-5.2 (Medium)51.2#105 (GPT-5.2)
2DeepSeek V3.2 (Thinking)42.7#198 (DeepSeek V3.2)
3Gemini 3 Flash38.3#93
4MiniMax-M2.135.8#283
5GLM-4.735.2#185
6Kimi K2 (Thinking)31.2#236 (Kimi K2)

No result here: #3 Claude Opus 5.5, #5 GPT-6 Astra, #8 Claude Fable 5.1.

Interactive version: theaggregate.ai/benchmark?slug=loca-bench · How It Works · Data refreshed daily, snapshot 2026-10-11.