| Signal | Grok 4.1 Fast | Delta | Grok 4 Fast |
|---|---|---|---|
Capabilities | 86 | -- | |
Context window size | 100 | -- | |
Output Capacity | 75 | -- | |
Pricing Tier | 1 | -- | |
Recency | 100 | -- | |
Versatility | 50 | -- | |
| Overall Result | 0 wins | of 6 | 0 wins |
9
days ranked higher
4
days
17
days ranked higher
xAI
xAI
| Metric | Grok 4.1 Fast | Grok 4 Fast | Winner |
|---|---|---|---|
| Overall Score | 64 | 64 | -- |
| Rank | #34 | #35 | Grok 4.1 Fast |
| Quality Rank | #34 | #35 | Grok 4.1 Fast |
| Adoption Rank | #34 | #35 | Grok 4.1 Fast |
| Parameters | -- | -- | -- |
| Context Window | 2000K | 2000K | -- |
| Pricing | $0.20/$0.50/M | $0.20/$0.50/M | -- |
| Signal Scores | |||
| Capabilities | 86 | 86 | Grok 4.1 Fast |
| Context window size | 100 | 100 | Grok 4.1 Fast |
| Output Capacity | 75 | 75 | Grok 4.1 Fast |
| Pricing Tier | 1 | 1 | Grok 4.1 Fast |
| Recency | 100 | 100 | Grok 4.1 Fast |
| Versatility | 50 | 50 | Grok 4.1 Fast |
Grok 4.1 Fast and Grok 4 Fast are extremely close in overall performance (only 0 points apart). Your best choice depends entirely on which specific strengths matter most for your use case.
Best for Quality
Grok 4.1 Fast
Marginally better benchmark scores; both are excellent
Best for Cost
Grok 4.1 Fast
0% lower pricing; better value at scale
Best for Reliability
Grok 4.1 Fast
Higher uptime and faster response speeds
Best for Prototyping
Grok 4.1 Fast
Stronger community support and better developer experience
Best for Production
Grok 4.1 Fast
Wider enterprise adoption and proven at scale
by xAI
Both models score similarly (64). The best choice depends on your specific use case, budget, and requirements.
Grok 4.1 Fast is ranked #34 and Grok 4 Fast is ranked #35. Rankings are based on a composite score from multiple signals including benchmarks, community sentiment, and adoption metrics.
Compare the detailed pricing breakdown above to see which model offers better value for your usage pattern.