Benchmark Almanac

Online-Mind2Web

Hark Handoff 97.7% tops its leaderboard GPT-5.4 92.7% leads the models we track
GPT-5.4 92.8% leads since March 2026
Fading

Web agents do 300 tasks on 136 live websites. An LLM judge reads the agent's trajectory and decides whether the task succeeded.

From the paper An Illusion of Progress? Assessing the Current State of Web Agents.

Released
April 2025
Kind
Web browsing
Level
Everyday
Scored
Graded by a model
Answers
Agent task
Tasks
All public
Strongest model tested
Claude Opus 4.8 #21 on the capability index
Last in a launch post
May 2026, dropped after it saturated
Last model added
June 2026
Scores refreshed
November 12th, 2026

In the authors’ words

As digitalization and cloud technologies evolve, the web is becoming increasingly important in the modern society. Autonomous web agents based on large language models (LLMs) hold a great potential in work automation. It is therefore important to accurately measure and monitor the progression of their capabilities. In this work, we conduct a comprehensive and rigorous assessment of the current state of web agents. Our results depict a very different picture of the competency of current agents, suggesting over-optimism in previously reported results. This gap can be attributed to shortcomings in existing benchmarks. We introduce Online-Mind2Web, an online evaluation benchmark consisting of 300 diverse and realistic tasks spanning 136 websites. It enables us to evaluate web agents under a setting that approximates how real users use these agents. To facilitate more scalable evaluation and development, we also develop a novel LLM-as-a-Judge automatic evaluation method and show that it can achieve around 85% agreement with human judgment, substantially higher than existing methods. Finally, we present the first comprehensive comparative analysis of current web agents, highlighting both their strengths and limitations to inspire future research.

Abstract of An Illusion of Progress? Assessing the Current State of Web Agents (arXiv:2504.01382, CC0)
10
Entries on its own leaderboard, 5 models we track
10
Launch posts list it, from 6 labs
6
System cards report it, from 4 labs

Hark Handoff tops the leaderboard with 97.7%

Best score per entry from the benchmark's own leaderboard, read on November 12th, 2026. Where a model ran with several settings or harnesses, we keep its best. Names in gray aren't in our model list: fine-tunes, agent systems, products and older models. They don't count toward leaders. The best model we track is GPT-5.4, at 92.7%.

GPT-5.4 leads with 92.8%, claims included

Best score per model from every source, including labs’ own numbers and claims Epoch AI collected from reports and papers. Labs pick their own settings, so a claim can beat an independent run of the same model.

The newest model with a score here came out in March 2026, and nobody has tested a newer one. Among the 20 highest-ranked models on the capability index, these have no score yet:

  1. 1 Hark Handoff 97.7%
  2. 2 n1.5-latest 97.3%
  3. 3 GPT-5.4 92.7%
  4. 4 n1-preview-11-2025 78.7%
  5. 5 Gemini 2.5 Computer Use 69%
  6. 6 OpenAI Computer-Using Agent 61.3%
  7. 7 o3-2025-04-16 and Claude-sonnet-4-20250514 57.3%
  8. 8 Claude 3.7 Sonnet 56.3%
  9. 9 GPT-4o Aug 2024 30.7%
  10. 10 Claude 3.5 Sonnet 29%

Source: Official Online-Mind2Web leaderboard

#EntryScoreSettingDateSource
1 Hark Handoff 97.7% Hark Aug 2026 Official leaderboard
2 n1.5-latest 97.3% Navigator Jun 2026 Official leaderboard
3 GPT-5.4 92.7% ACT-2 Mar 2026 Official leaderboard
4 n1-preview-11-2025 78.7% Navigator Nov 2025 Official leaderboard
5 Gemini 2.5 Computer Use 69% Google Computer Use (09-2025) Oct 2025 Official leaderboard
6 OpenAI Computer-Using Agent 61.3% Operator Mar 2025 Official leaderboard
7 o3-2025-04-16 and Claude-sonnet-4-20250514 57.3% ACT-1-20250814 Aug 2025 Official leaderboard
8 Claude 3.7 Sonnet 56.3% Claude Computer Use 3.7 (w/o thinking) Feb 2025 Official leaderboard
9 GPT-4o Aug 2024 30.7% SeeAct Aug 2024 Official leaderboard
10 Claude 3.5 Sonnet 29% Claude Computer Use 3.5 Jun 2024 Official leaderboard
#ModelScoreSettingDateSource
1 GPT-5.4 92.8% Mar 2026 Lab model card
2 UI-TARS-2 88.2% Sep 2025 Lab model card
3 Seed1.8 85.9% Dec 2025 Lab model card
4 Claude Opus 4.8 84% May 2026 Lab model card
5 Seed1.5-VL 76.4% May 2025 Lab model card
6 UI-TARS-1.5 75.8% Apr 2025 Lab model card
7 Fara1.5-27B 72.3% May 2026 Lab model card
8 Gemini 2.5 Computer Use 69% Google Computer Use (09-2025) Oct 2025 Official leaderboard
9 Claude 3.7 Sonnet 56.3% Claude Computer Use 3.7 (w/o thinking) Feb 2025 Official leaderboard
10 MolmoWeb 8B 35.3% Mar 2026 Lab model card
11 Fara-7B 34.1% Nov 2025 Lab model card
12 GPT-4o Aug 2024 30.7% SeeAct Aug 2024 Official leaderboard
13 Claude 3.5 Sonnet 29% Claude Computer Use 3.5 Jun 2024 Official leaderboard

Labs report scores for 10 models in their cards. Switch the scores above to rank them together.

3 models have held number one on the official leaderboard since its release in April 2025 5 models have held number one with claims included since its release in April 2025

Lab claims count from the day the card came out, independent runs from the model’s release. We draw one row each for the benchmark’s own leaderboard and what labs claim in their cards.

Anthropic Google DeepMind OpenAI ByteDance Seed
Own leaderboard Passed 85% in Mar 2026, by GPT-5.4
GPT-5.4 92.7%
Lab claims Passed 85% in Sep 2025, by UI-TARS-2
GPT-5.4 92.8%

Sources: Official Online-Mind2Web leaderboard and labs’ model cards

ByteDance Seed’s own number for UI-TARS-2 passed 85% in September 2025

All the scores we have, one dot each, so a model tested at several settings appears more than once.

On the benchmark’s own leaderboard Reported by the lab in its model card Best so far
0% 20% 40% 60% 80% 100% 2024 2025 2026 Near the ceiling (85%) GPT-5.4 UI-TARS-2 Seed1.5-VL Claude 3.7 Sonnet GPT-4o 0% 20% 40% 60% 80% 100% 2024 2025 2026 Near the ceiling (85%) GPT-5.4 Seed1.5-VL

Sources: Official Online-Mind2Web leaderboard and labs’ model cards

Labs headline it less often now, last in May 2026

Launch posts from every lab that has listed it, one tick per post. Tall colored ticks include it, and short gray ones leave it out.

ByteDance Seed
Google DeepMind
Microsoft
OpenAI
Ai2
Anthropic
DateLaunch postScoreAs the post writes it
May 28, 2026 Claude Opus 4.8 84 Online-Mind2Web, 84%
May 21, 2026 Fara1.5-27B 72.3 Online-Mind2Web
Mar 24, 2026 MolmoWeb 8B 35.3 Online-Mind2Web (pass@1)
Mar 5, 2026 GPT-5.4 92.8 Online-Mind2Web, screenshot-based observations only
Dec 18, 2025 Seed1.8 85.9 Online-Mind2web
Nov 24, 2025 Fara-7B 34.1 Online-M2W
Oct 7, 2025 Gemini 2.5 Computer Use 69 Online-Mind2Web, official leaderboard (Browserbase 65.7)
Sep 2, 2025 UI-TARS-2 88.2 Online-Mind2web
May 12, 2025 Seed1.5-VL 76.4 Online-Mind2Web
Apr 16, 2025 UI-TARS-1.5 75.8 Online-Mind2web

6 system cards report it, from 4 labs

Besides launch posts, we read the system cards, model cards and technical reports labs publish with a release. They report far more, including safety and frontier-risk tests.

DateDocumentScoreAs the document writes itSection
Jun 18, 2026 Fara1.5-27B technical report 72.3 Online-Mind2Web task success, WebJudge with o4-mini, mean of 3 runs, 95% CI 3.8 (Tables 3 and 7) Capabilities
Apr 9, 2026 MolmoWeb 8B technical report 35.3 Online-Mind2Web, o4-mini judge, 100 steps (Table 4). Pass@4 60.5 (Figure 6) Capabilities
Mar 21, 2026 Seed1.8 model card 85.9 Online-Mind2web (Table 5) Capabilities
Nov 24, 2025 Fara-7B technical report 34.1 Online-M2W success rate, mean of 3 runs, 34.1 ± 3.7 (Table 9, Table 19) Capabilities
Oct 7, 2025 Gemini 2.5 Computer Use model card 69 Online-Mind2Web, Official Leaderboard, 65.7 measured by Browserbase (results table, p.3) Capabilities
May 11, 2025 Seed1.5-VL technical report 76.4 Online-Mind2Web, thinking (Table 8) Capabilities

2 lab claims next to the leaderboard

Each score a lab reported for its own model, beside the same model's best score on the leaderboard. Gaps mostly come from different harnesses, effort levels and task subsets. 2 of them match, which usually means one side copied the other. Every benchmark.

Model Lab says Board says Gap
GPT-5.4 92.8% Online-Mind2Web, screenshot-based observations only 92.7% Leaderboard, ACT-2 Same
Gemini 2.5 Computer Use 69% Online-Mind2Web, official leaderboard (Browserbase 65.7) 69% Leaderboard, Google Computer Use (09-2025) Same

More in Computer and browser use

All 69 in Computer and browser use
  • BrowseComp In use Hard-to-find facts that need persistent web browsing. Short verifiable answers graded for exact correctness. Claude Fable 5 93.3%
  • ScreenSpot-Pro In use GUI grounding on high-resolution professional-software screenshots. The model must locate the target UI element. GPT-6 Astra 92.7%
  • AndroidWorld In use Agents complete 116 tasks across 20 real Android apps in an emulator. Each task checks the device's system state to judge success. GPT-6 Astra 100%
  • OSWorld 2.1 In use Agents complete 108 long-horizon workflows across 31 self-hosted websites and desktop apps, averaging 318 tool calls. Scored by binary completion and checkpoint partial credit. Claude Opus 5.5 81.8%
  • WebArena-Verified In use Agents complete 812 audited WebArena tasks on self-hosted websites. Deterministic evaluators check the agent's answer and captured network traces. Muse Spark 1.1 69%
  • MobileWorld In use Agents complete 201 tasks across 20 mobile apps, including tasks that need user clarification or MCP tools. Backend checks verify success. GPT-5 55.3%