| Signal | DeepSeek V3.1 | Delta | Step 3.5 Flash |
|---|---|---|---|
Capabilities | 57 | +14 | |
Context window size | 72 | -14 | |
Output Capacity | 64 | -26 | |
Pricing Tier | 1 | +1 | |
Recency | 97 | -3 | |
Versatility | 33 | -- | |
| Overall Result | 2 wins | of 6 | 3 wins |
6
days ranked higher
1
days
23
days ranked higher
DeepSeek
StepFun
Step 3.5 Flash saves you $27.50/month
That's $330.00/year compared to DeepSeek V3.1 at your current usage level of 100K calls/month.
| Metric | DeepSeek V3.1 | Step 3.5 Flash | Winner |
|---|---|---|---|
| Overall Score | 50 | 51 | Step 3.5 Flash |
| Rank | #120 | #103 | Step 3.5 Flash |
| Quality Rank | #120 | #103 | Step 3.5 Flash |
| Adoption Rank | #120 | #103 | Step 3.5 Flash |
| Parameters | -- | -- | -- |
| Context Window | 33K | 256K | Step 3.5 Flash |
| Pricing | $0.15/$0.75/M | $0.10/$0.30/M | -- |
| Signal Scores | |||
| Capabilities | 57 | 43 | DeepSeek V3.1 |
| Context window size | 72 | 86 | Step 3.5 Flash |
| Output Capacity | 64 | 90 | Step 3.5 Flash |
| Pricing Tier | 1 | 0 | DeepSeek V3.1 |
| Recency | 97 | 100 | Step 3.5 Flash |
| Versatility | 33 | 33 | DeepSeek V3.1 |
DeepSeek V3.1 and Step 3.5 Flash are extremely close in overall performance (only 1.3999999999999986 points apart). Your best choice depends entirely on which specific strengths matter most for your use case.
Best for Quality
DeepSeek V3.1
Marginally better benchmark scores; both are excellent
Best for Cost
Step 3.5 Flash
56% lower pricing; better value at scale
Best for Reliability
DeepSeek V3.1
Higher uptime and faster response speeds
Best for Prototyping
DeepSeek V3.1
Stronger community support and better developer experience
Best for Production
DeepSeek V3.1
Wider enterprise adoption and proven at scale
by DeepSeek
Step 3.5 Flash currently scores higher (51 vs 50), but the best choice depends on your specific use case, budget, and requirements.
DeepSeek V3.1 is ranked #120 and Step 3.5 Flash is ranked #103. 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.