Benchmark Almanac

Online-Mind2Web

UI-TARS-2 88.2% leads since Sep 2025 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.

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)
Made by Ohio State University (OSU NLP Group) Released Apr 2025 Web browsing All tasks public Last in a launch post May 2026 , dropped after it saturated Last model added Jun 2026
Level
Everyday Most adults, without training
Scored
Graded by a model A language model scores each response, usually against a rubric.
Answers
Agent task Many steps in a terminal, browser, desktop, app, game or robot.
8
Models scored in lab cards
8
Launch posts list it, from 4 labs
6
System cards report it, from 4 labs

UI-TARS-2 leads with 88.2% among models released by May 2026

Best score per model as labs report them in their own cards. Labs pick their own settings, so these compare less cleanly than independent runs.

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

  1. 1 UI-TARS-2 88.2%
  2. 2 Seed1.8 85.9%
  3. 3 Seed1.5-VL 76.4%
  4. 4 UI-TARS-1.5 75.8%
  5. 5 Fara1.5-27B 72.3%
  6. 6 Gemini 2.5 Computer Use 69%
  7. 7 MolmoWeb 8B 35.3%
  8. 8 Fara-7B 34.1%
#ModelScoreSettingDateSource
1 UI-TARS-2 88.2% Sep 2025 Model card
2 Seed1.8 85.9% Dec 2025 Model card
3 Seed1.5-VL 76.4% May 2025 Model card
4 UI-TARS-1.5 75.8% Apr 2025 Model card
5 Fara1.5-27B 72.3% May 2026 Model card
6 Gemini 2.5 Computer Use 69% Oct 2025 Model card
7 MolmoWeb 8B 35.3% Mar 2026 Model card
8 Fara-7B 34.1% Nov 2025 Model card

3 models have held number one since its release in Apr 2025

Lab claims count from the day the card came out, independent runs from the model’s release.

ByteDance Seed
Lab claims Passed 85% in Sep 2025, by UI-TARS-2
UI-TARS-2 88.2%

The best score passed 85% in Sep 2025

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

Reported by the lab in its model card Best so far
0% 20% 40% 60% 80% 100% 2025 2026 Near the ceiling (85%) UI-TARS-2 Seed1.5-VL 0% 20% 40% 60% 80% 100% 2025 2026 Near the ceiling (85%) UI-TARS-2 Seed1.5-VL

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
Ai2
DateLaunch postScoreAs the post writes it
21 May 2026 Fara1.5-27B 72.3 Online-Mind2Web
24 Mar 2026 MolmoWeb 8B 35.3 Online-Mind2Web (pass@1)
18 Dec 2025 Seed1.8 85.9 Online-Mind2web
24 Nov 2025 Fara-7B 34.1 Online-M2W
7 Oct 2025 Gemini 2.5 Computer Use 69 Online-Mind2Web, official leaderboard (Browserbase 65.7)
2 Sep 2025 UI-TARS-2 88.2 Online-Mind2web
12 May 2025 Seed1.5-VL 76.4 Online-Mind2Web
16 Apr 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
18 Jun 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
9 Apr 2026 MolmoWeb 8B technical report 35.3 Online-Mind2Web, o4-mini judge, 100 steps (Table 4). Pass@4 60.5 (Figure 6) Capabilities
21 Mar 2026 Seed1.8 model card 85.9 Online-Mind2web (Table 5) Capabilities
24 Nov 2025 Fara-7B technical report 34.1 Online-M2W success rate, mean of 3 runs, 34.1 ± 3.7 (Table 9, Table 19) Capabilities
7 Oct 2025 Gemini 2.5 Computer Use model card 69 Online-Mind2Web, Official Leaderboard, 65.7 measured by Browserbase (results table, p.3) Capabilities
11 May 2025 Seed1.5-VL technical report 76.4 Online-Mind2Web, thinking (Table 8) Capabilities

More in Computer and browser use

All 56 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. Kimi K3 74.4%