LLM Comparison
Step 3.5 Flash vs Solar Pro 3
Side-by-side specs, pricing & capabilities · Updated April 2026
Add to comparison
2/6 modelsSame tier:
S Step 3.5 Flash | S Solar Pro 3 | |
|---|---|---|
| Organization | StepFun | Upstage |
| OpenTools Score | ||
| Family | Step | Solar |
| Status | Current | Current |
| Release Date | Jan 2026 | Jan 2026 |
| Context Window | 262K tokens | 128K tokens |
| Input Price | $0.10/M tokens | $0.15/M tokens |
| Output Price | $0.30/M tokens | $0.60/M tokens |
| Pricing Notes | — | Cache read: $0.0150/M tokens |
| Capabilities | textcode | textcode |
| Max Output | 66K tokens | — |
| API Identifier | stepfun/step-3.5-flash | upstage/solar-pro-3 |
| View Step 3.5 Flash | View Solar Pro 3 |
Cost Calculator
Enter your expected monthly token usage to compare costs.
| Model | Input | Output | Total / mo | vs Best |
|---|---|---|---|---|
| Step 3.5 FlashCheapest | $0.10 | $0.15 | $0.25 | — |
| Solar Pro 3 | $0.15 | $0.30 | $0.45 | +80% |
StepFun
Step 3.5 Flash
Step 3.5 Flash is a large language model from StepFun. Supports up to 262,144 token context window. Available from $0.10/M input tokens.
Upstage
Solar Pro 3
Solar Pro 3 is a large language model from Upstage. Supports up to 128,000 token context window. Available from $0.15/M input tokens.
More Comparisons
Looking for more AI models?
Browse All LLMs