| Signal | Grok 4 Fast | Delta | Qwen3.5-Flash |
|---|---|---|---|
Capabilities | 86 | +14 | |
Context window size | 100 | +5 | |
Output Capacity | 75 | -6 | |
Pricing Tier | 1 | +0 | |
Recency | 100 | -- | |
Versatility | 50 | -17 | |
| Overall Result | 3 wins | of 6 | 2 wins |
17
days ranked higher
4
days
9
days ranked higher
xAI
Alibaba
Qwen3.5-Flash saves you $15.00/month
That's $180.00/year compared to Grok 4 Fast at your current usage level of 100K calls/month.
| Metric | Grok 4 Fast | Qwen3.5-Flash | Winner |
|---|---|---|---|
| Overall Score | 64 | 62 | Grok 4 Fast |
| Rank | #35 | #45 | Grok 4 Fast |
| Quality Rank | #35 | #45 | Grok 4 Fast |
| Adoption Rank | #35 | #45 | Grok 4 Fast |
| Parameters | -- | -- | -- |
| Context Window | 2000K | 1000K | Grok 4 Fast |
| Pricing | $0.20/$0.50/M | $0.10/$0.40/M | -- |
| Signal Scores | |||
| Capabilities | 86 | 71 | Grok 4 Fast |
| Context window size | 100 | 95 | Grok 4 Fast |
| Output Capacity | 75 | 80 | Qwen3.5-Flash |
| Pricing Tier | 1 | 0 | Grok 4 Fast |
| Recency | 100 | 100 | Grok 4 Fast |
| Versatility | 50 | 67 | Qwen3.5-Flash |
Grok 4 Fast and Qwen3.5-Flash are extremely close in overall performance (only 2.1000000000000014 points apart). Your best choice depends entirely on which specific strengths matter most for your use case.
Best for Quality
Grok 4 Fast
Marginally better benchmark scores; both are excellent
Best for Cost
Qwen3.5-Flash
29% lower pricing; better value at scale
Best for Reliability
Grok 4 Fast
Higher uptime and faster response speeds
Best for Prototyping
Grok 4 Fast
Stronger community support and better developer experience
Best for Production
Grok 4 Fast
Wider enterprise adoption and proven at scale
by xAI
Grok 4 Fast currently scores higher (64 vs 62), but the best choice depends on your specific use case, budget, and requirements.
Grok 4 Fast is ranked #35 and Qwen3.5-Flash is ranked #45. 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.