WebArena is a realistic web environment for evaluating autonomous AI agents on complex, multi-step browser tasks. Agents must navigate e-commerce sites, forums, content management systems, and code repositories to complete practical objectives like purchasing items, finding information, and managing accounts.
BenchLM is tracking WebArena in the local dataset, but exact-source verification records for these rows are still being attached. To avoid a blank benchmark page, BenchLM shows the current tracked rows below as a display-only reference table.
These tracked rows are useful for inspection and spot-checking, but until exact-source attachments are completed they should not be treated as fully verified public benchmark rows.
BenchLM mirrors the published tracked score view for WebArena. Claude Mythos Preview leads the public snapshot at 68.7% , followed by GPT-5.4 Pro (65.8%) and Claude Opus 4.6 (64.5%). BenchLM does not use these results to rank models overall.
Claude Mythos Preview
Anthropic
claude-mythos-preview
GPT-5.4 Pro
OpenAI
gpt-5-4-pro
Claude Opus 4.6
Anthropic
claude-opus-4-6
The published WebArena snapshot is tightly clustered at the top: Claude Mythos Preview sits at 68.7%, while the third row is only 4.2 points behind. The broader top-10 spread is 16.6 points, so the benchmark still separates strong models even when the leaders cluster.
15 models have been evaluated on WebArena. The benchmark falls in the Agentic category. This category carries a 22% weight in BenchLM.ai's overall scoring system. Within that category, WebArena contributes 8% of the category score, so strong performance here directly affects a model's overall ranking.
Version
WebArena 2024
Refresh cadence
Annual
Staleness state
Refreshing
Question availability
Public benchmark set
BenchLM uses freshness metadata to decide whether a benchmark should still be treated as a strong differentiator, a benchmark to watch, or a display-only reference. For the full scoring policy, see the BenchLM methodology page.
WebArena is a realistic web environment for evaluating autonomous AI agents on complex, multi-step browser tasks. Agents must navigate e-commerce sites, forums, content management systems, and code repositories to complete practical objectives like purchasing items, finding information, and managing accounts.
Claude Mythos Preview currently leads the published WebArena snapshot with a tracked score of 68.7%. BenchLM shows this benchmark for display only and does not use it in overall rankings.
15 AI models are included in BenchLM's mirrored WebArena snapshot, based on the public leaderboard captured on April 7, 2026.
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