Step 3.5 Flash
NanoGPT
Step 3.5 Flash by NanoGPT costs $0.20 per 1M input tokens and $0.50 per 1M output tokens, with a 256K-token context window.
Pricing
Input (per 1M tokens)
$0.20
Output (per 1M tokens)
$0.50
Cached input (per 1M)
—
Specifications
- Provider
- NanoGPT
- Context window
- 256K tokens
- Parameters
- —
- Released
- Feb 2026
- Open weights
- No
- Frontier model
- No
Benchmarks
- LMArena (Chatbot Arena) Elohuman-preference
- 1404.3
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FAQ
Pricing is per 1M tokens (USD); confirm with the provider before production use.