Model Tracker
Grok 4.1
Grok 4.1 is an AI model made by xAI. xAI released it on 17 November 2025.
- Released
- 17 November 2025 — x.ai, read 16 October 2026
- Status
- Not confirmed: two readings disagree: ga and retired
- Takes
- Not confirmed: The examined maker pages do not specify Grok 4.1's accepted input modalities.
- Returns
- Not confirmed: The examined maker pages do not specify Grok 4.1's output modalities as a field or model specification.
- Open weights
- Not confirmed: The examined maker pages do not state whether Grok 4.1's weights are open or downloadable.
- Licence
- Not confirmed: The examined maker pages do not name a licence for Grok 4.1.
- Context window
- Not confirmed: The examined maker pages do not print a context-window figure for Grok 4.1.
- Longest answer
- Not confirmed: The examined maker pages do not print a standard maximum-output token limit for Grok 4.1.
- Knowledge cutoff
- Not confirmed: The examined maker pages do not state a knowledge-cutoff date for Grok 4.1.
- API price, input
- Not confirmed: The maker's current model and pricing documentation does not give a standard API input price for Grok 4.1.
- API price, output
- Not confirmed: The maker's current model and pricing documentation does not give a standard API output price for Grok 4.1.
- Where
- Consumer app — x.ai, read 16 October 2026
- Parameters
- Not confirmed: The examined maker pages do not publish a parameter count for Grok 4.1.
- Model card
- https://data.x.ai/2025-11-17-grok-4-1-model-card.pdf — data.x.ai, read 16 October 2026
Benchmarks
Measured by others, not by the maker: each score with the name the measurer gives the model and the setting it ran, its day and its licence.
Arena
- Text Arena, grok-4.1-thinking: 1,465 (1,462–1,468, 66,509 votes), published 15 October 2026
- Text Arena, grok-4.1: 1,459 (1,456–1,462, 68,648 votes), published 15 October 2026
- Code Arena (WebDev), Grok 4.1 (Thinking): 1,215 (1,190–1,240, 961 votes), published 18 October 2026
Arena’s leaderboard dataset (lmarena-ai/leaderboard-dataset on Hugging Face), CC BY 4.0: ratings from people’s votes between two anonymous models, as Arena publishes them. Data · CC BY 4.0
Questions
When was Grok 4.1 released?
xAI released Grok 4.1 on 17 November 2025.
More from xAI
- Grok 3
- Grok 3 (Think)
- Grok 3 mini
- Grok 3 mini (Think)
- Grok 4
- Grok 4 Fast
- Grok 4 Heavy
- Grok 4.1 Fast
- Grok 4.20
- Grok 4.20 Multi-Agent Beta
- Grok 4.3
- Grok 4.5
- Grok 4.6
- Grok 4.7
- Grok Build 0.1
- Grok Code Fast 1
- Grok Imagine Image 2.0
- Grok Imagine Video 1.5
- Grok Voice 1.0
- Grok Voice 2.0
- Grok Voice 3.0
- Grok-1
- Grok-1.5V
- Grok-2
Sources
- Grok 4.1 | SpaceXSI (read 16 October 2026)
- Grok 4.1 Model Card (read 16 October 2026)
- Grok Models & Pricing | SpaceXSI Docs (read 16 October 2026)
- May 15, 2026 Model Retirement | SpaceXSI Docs (read 16 October 2026)