Models2in catalog
Largest context262KStep 3.5 Flash
Avg context
259K
Cheapest input
—
Largest output
256K
Step 3.5 Flash (free)
Speed tiers
fast 2
Capabilities
What Stepfun models support across the catalog.
Tool use
2 / 2
100% of models
Function calling
2 / 2
100% of models
Extended thinking
2 / 2
100% of models
Streaming
2 / 2
100% of models
All Stepfun models
Sorted by context window, largest first. Tap a row for full specs.
| Model | Context | Max output | Input $/M | Speed |
|---|---|---|---|---|
| Step 3.5 Flash | 262K | 66K | — | fast |
| Step 3.5 Flash (free) | 256K | 256K | — | fast |
See rankings
How Stepfun models rank against the full catalog.