X Browse (xAI)
Grok 4 Fast 58% Dropped
Agents answer questions that need multi-hop search and browsing on the X platform. Scored by answer accuracy.
xAI describes it in one sentence as an internal benchmark and gives no grading details, so the scoring type is assumed.
Made by xAI Released Nov 2025 Deep research Tasks kept private Last in a launch post Nov 2025 , dropped before it saturated
Last model added Nov 2025
- Level
- Expert Specialists with years of training, often over hours of work
- Scored
- Checked automatically A program checks the result against an answer key, unit tests or the expected final state.
- Answers
- Agent task Many steps in a terminal, browser, desktop, app, game or robot.
2
Models scored in lab cards
2
Launch posts list it, from 1 lab
Grok 4 Fast leads with 58%
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.
- 1 Grok 4 Fast 58%
- 2 Grok 4.1 Fast 56.3%
| # | Model | Score | Setting | Date | Source |
|---|---|---|---|---|---|
| 1 | Grok 4 Fast | 58% | Sep 2025 | Model card | |
| 2 | Grok 4.1 Fast | 56.3% | Nov 2025 | Model card |
Scores over time
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
No launch post has listed it since Nov 2025
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.
| Date | Launch post | Score | As the post writes it |
|---|---|---|---|
| 19 Nov 2025 | Grok 4.1 Fast | 56.3 | X Browse (internal, Agent Tools API) |
| 19 Sep 2025 | Grok 4 Fast | 58 | X Browse (internal) pass@1 |
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