← Back to directory
xAI
Grok 4.1
Released Nov 17, 2025 · knowledge cutoff 2024-11
- Status
- Unknown
- Location
- United States
- Modality
- Multimodal
- Context window
- 256K
- Max output
- 64K
- Speed
- —
- Price ($/MTok in / out)
- $3 / $15
- Cost per task
- —
- Open weights
- No
Benchmarks2 of 8 reported
GPQA Diamond
88%
LMArena Elo
1483
MMLU-Pro
—
SWE-bench Verified
—
Terminal-Bench 2.1
—
AIME (latest)
—
Humanity's Last Exam
—
ARC-AGI-2
—
Strengths & weaknesses
Strengths
- Noticeably fewer fabricated facts than Grok 4 in ordinary use
- Better emotional register and creative prose than its predecessor
- Still answers directly where rivals hedge
Weaknesses
- Little published detail on how it behaves at long context or under load
- Its real-time-data strengths don't transfer to careful analytical work
For developers
API model strings
Not researched
Licence
Proprietary — weights not released
Retirement
No retirement announced
Lineage
No recorded predecessor