| Signal | o3 | Delta | Step 3.5 Flash |
|---|---|---|---|
Capabilities | 86 | +43 | |
Context window size | 84 | -2 | |
Output Capacity | 83 | -7 | |
Pricing Tier | 8 | +8 | |
Recency | 74 | -26 | |
Versatility | 67 | +33 | |
| Overall Result | 3 wins | of 6 | 3 wins |
30
days ranked higher
0
days
0
days ranked higher
OpenAI
StepFun
Step 3.5 Flash saves you $575.00/month
That's $6900.00/year compared to o3 at your current usage level of 100K calls/month.
| Metric | o3 | Step 3.5 Flash | Winner |
|---|---|---|---|
| Overall Score | 62 | 51 | o3 |
| Rank | #44 | #103 | o3 |
| Quality Rank | #44 | #103 | o3 |
| Adoption Rank | #44 | #103 | o3 |
| Parameters | -- | -- | -- |
| Context Window | 200K | 256K | Step 3.5 Flash |
| Pricing | $2.00/$8.00/M | $0.10/$0.30/M | -- |
| Signal Scores | |||
| Capabilities | 86 | 43 | o3 |
| Context window size | 84 | 86 | Step 3.5 Flash |
| Output Capacity | 83 | 90 | Step 3.5 Flash |
| Pricing Tier | 8 | 0 | o3 |
| Recency | 74 | 100 | Step 3.5 Flash |
| Versatility | 67 | 33 | o3 |
o3 clearly outperforms Step 3.5 Flash with a significant 11.200000000000003-point lead. For most general use cases, o3 is the stronger choice. However, Step 3.5 Flash may still excel in niche scenarios.
Best for Quality
o3
Marginally better benchmark scores; both are excellent
Best for Cost
Step 3.5 Flash
96% lower pricing; better value at scale
Best for Reliability
o3
Higher uptime and faster response speeds
Best for Prototyping
o3
Stronger community support and better developer experience
Best for Production
o3
Wider enterprise adoption and proven at scale
by OpenAI
o3 currently scores higher (62 vs 51), but the best choice depends on your specific use case, budget, and requirements.
o3 is ranked #44 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.