Auto57%Harbor: pendingAgentic / Tool UseAbstract Reasoning

Learn2Play Bench

Learn2Play Bench: How Well Do LLM Agents Learn from Experience in Unfamiliar Environments?

A benchmark of newly designed text-based games with hidden rules to evaluate how well LLM agents learn from experience and adapt to unfamiliar environments through interaction.

How to run

ltb · learn2play-bench
$ npm i -g lettokenburn-cli
$ ltb bench info learn2play-bench

External harness. No Harbor adapter has been generated for this benchmark yet. `ltb bench info` prints the known links.

Runs happen on your machine with your own subscription; only the score summary is pushed. CLI docs

Scores

13 sourced entries
HarnessSourceConfidenceLink
Claude Opus 573.0claude codeIndependentmediumOct 6, 2026arxiv.org
Kimi K359.8evotestIndependentmediumOct 6, 2026arxiv.org
GPT-5.6 Sol59.5codexIndependentmediumOct 6, 2026arxiv.org
Kimi K356.6reflexionIndependentmediumOct 6, 2026arxiv.org
Qwen3.8 Max56.4opencodeIndependentmediumOct 6, 2026arxiv.org
Kimi K356.2opencodeIndependentmediumOct 6, 2026arxiv.org
Claude Opus 554.7evotestIndependentmediumOct 6, 2026arxiv.org
Claude Opus 550.3opencodeIndependentmediumOct 6, 2026arxiv.org
Kimi K347.7awmIndependentmediumOct 6, 2026arxiv.org
Kimi K347.0reasoningbankIndependentmediumOct 6, 2026arxiv.org
Claude Opus 546.2memoryIndependentmediumOct 6, 2026arxiv.org
GPT-5.6 Sol46.1opencodeIndependentmediumOct 6, 2026arxiv.org
Kimi K346.0memoryIndependentmediumOct 6, 2026arxiv.org

Every number links to where it was published. Low-confidence rows are muted and need per-cell verification.

Reproduced by the community

All runs
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About

Learn2Play Bench features novel text-based games with counterintuitive hidden rules, requiring agents to discover mechanics through interaction rather than pretrained knowledge. It includes deterministic feedback, automatic scoring, and re-shuffled instances to test knowledge transfer.

Scoring is automated based on game performance. Key findings indicate that retaining raw interaction history aids learning more than summarization, humans outperform top agents, and agent harnesses significantly impact both performance and inference cost.