Benchmark Almanac

CRAB

GPT-4o May 2024 38% leads since July 2024
Not in model cards

Multimodal agents do tasks that span an Ubuntu desktop and an Android phone at once. Graph-based evaluators give credit for intermediate steps.

430 GitHub stars at November 1st, 2026.

Made by
CAMEL-AI and collaborators
Released
July 2024
Kind
Desktop apps
Level
Everyday
Scored
Checked automatically
Answers
Agent task
Tasks
All public
Strongest model tested
GPT-4o May 2024 #161 on the capability index
Last model added
May 2024
Scores refreshed
November 12th, 2026

In the authors’ words

The development of autonomous agents increasingly relies on Multimodal Language Models (MLMs) to perform tasks described in natural language with GUI environments, such as websites, desktop computers, or mobile phones. Existing benchmarks for MLM agents in interactive environments are limited by their focus on a single environment, lack of detailed and generalized evaluation methods, and the complexities of constructing tasks and evaluators. To overcome these limitations, we introduce Crab, the first agent benchmark framework designed to support cross-environment tasks, incorporating a graph-based fine-grained evaluation method and an efficient mechanism for task and evaluator construction. Our framework supports multiple devices and can be easily extended to any environment with a Python interface. Leveraging Crab, we developed a cross-platform Crab Benchmark-v0 comprising 120 tasks in computer desktop and mobile phone environments. We evaluated four advanced MLMs using different single and multi-agent system configurations on this benchmark. The experimental results demonstrate that the single agent with GPT-4o achieves the best completion ratio of 38.01%. All framework code, agent code, and task datasets are publicly available at https://github.com/camel-ai/crab.

Abstract of CRAB: Cross-environment Agent Benchmark for Multimodal Language Model Agents (arXiv:2407.01511, CC0)
6
Entries on its own leaderboard, 3 models we track

GPT-4o leads with 38% among models released by May 2024

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 newest model with a score here came out in May 2024, and nobody has tested a newer one. Among the 20 highest-ranked models on the capability index, these have no score yet:

  1. 1 GPT-4o May 2024, SoM (GroundingDino+EasyOCR); Tool calling API 38%
  2. 2 GPT-4 Turbo Apr 2024, SoM (GroundingDino+EasyOCR); Tool calling API 33.4%
  3. 3 Claude 3 Opus SoM (GroundingDino+EasyOCR); Tool calling API 19.6%
  4. 4 Gemini 1.5 PRO (snapshot unspecified) SoM (GroundingDino+EasyOCR); Tool calling API 15.5%
  5. 5 Pixtral-12B-2409 SoM (GroundingDino+EasyOCR); model-generated JSON 9.50%
  6. 6 llava-onevision-qwen2-72b-ov-chat SoM (GroundingDino+EasyOCR); model-generated JSON 6.64%

Source: Official CRAB leaderboard

#EntryScoreSettingDateSource
1 GPT-4o May 2024 38% SoM (GroundingDino+EasyOCR); Tool calling API, CRAB May 2024 Official leaderboard
2 GPT-4 Turbo Apr 2024 33.4% SoM (GroundingDino+EasyOCR); Tool calling API, CRAB Apr 2024 Official leaderboard
3 Claude 3 Opus 19.6% SoM (GroundingDino+EasyOCR); Tool calling API, CRAB Feb 2024 Official leaderboard
4 Gemini 1.5 PRO (snapshot unspecified) 15.5% SoM (GroundingDino+EasyOCR); Tool calling API, CRAB Official leaderboard
5 Pixtral-12B-2409 9.50% SoM (GroundingDino+EasyOCR); model-generated JSON, CRAB Official leaderboard
6 llava-onevision-qwen2-72b-ov-chat 6.64% SoM (GroundingDino+EasyOCR); model-generated JSON, CRAB Official leaderboard

Number one over time

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

OpenAI
Own leaderboard Not tested since Jul 2024
GPT-4o 38%

Source: Official CRAB leaderboard

Scores over time

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 Best so far
0% 20% 40% 60% 80% 100% 2024 Near the ceiling (85%) GPT-4o GPT-4 Turbo Claude 3 Opus 0% 20% 40% 60% 80% 100% 2024 Near the ceiling (85%) GPT-4o Claude 3 Opus

Source: Official CRAB leaderboard

No lab model card reports it yet

We read the headline results of 522 launch posts from 52 labs, and none of them list this benchmark.

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%