Step 3.5 Flash by Routeway
Free coding model via Routeway (tier S+, SWE-bench ~74.4%).
Access
Free API tier
Free limits
Free tier
Modality
code, text
Credit card
Not required
Commercial use
Unclear, verify
Context window
256,000 tokens
Model ID
step-3.5-flash:free
Last verified
June 2026
How to use Step 3.5 Flash
Free coding model via Routeway (tier S+, SWE-bench ~74.4%).
Frequently asked
Is Step 3.5 Flash free?
Yes. Routeway offers it as Free API tier with these limits: Free tier. No credit card is required.
Can I use Step 3.5 Flash commercially?
Commercial terms are not clearly documented. Check the provider's current terms before shipping.
How do I start using Step 3.5 Flash?
Free coding model via Routeway (tier S+, SWE-bench ~74.4%).
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