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Step 3.5 Flash API price
step-3.5-flash
The cheapest Step 3.5 Flash API is $0.10/M input at OpenRouter (aggregator) - all 2 providers compared below, per 1M tokens.
SmallStepFun2 sellers
Input
$0.10
per 1M tokens · OpenRouter (aggregator)
Output
$0.30
per 1M tokens · OpenRouter (aggregator)
Where to buy it
Cheapest Step 3.5 Flash API providers compared - 2 sellers, from $0.10/M.
Cost calculator
| Provider | Input $/M | Output $/M | Cached in | Your cost |
|---|---|---|---|---|
| OpenRouter (aggregator)stale | 0.100cheapest | 0.300 | - | |
| TokenRouter (aggregator) | 0.100 | 0.300 | 0.020 |
Against its tier
- This model$0.40
- Cheapest · DeepSeek V4 Flash (0731 snapshot)$0.126
- Tier median · DeepSeek V4.1 Flash$0.60
- Dearest · GPT 5.4 Mini (03-17 snapshot)$5.25
#7 of 19 small · cheaper than 67%
Details
- Context window
- -not published
- Developer
- StepFun
- Intelligence
- 16.6est.
- Sellers
- 2
- Cheapest at
- OpenRouter (aggregator)
- Combined
- $0.40in + out per 1M
- Last checked
- 2026-09-17