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Step 3.5 Flash 2603

routing.runOpen weights

Step 3.5 Flash 2603 by routing.run costs $0.10 per 1M input tokens and $0.30 per 1M output tokens, with a 262K-token context window.

Pricing

Input (per 1M tokens)
$0.10
Output (per 1M tokens)
$0.30
Cached input (per 1M)
$0.02

Specifications

Provider
routing.run
Context window
262K tokens
Parameters
—
Released
Apr 2026
Open weights
Yes
Frontier model
No

Compare Step 3.5 Flash 2603 with…

Step 3.5 Flash 2603 vs MiMo V2.5 Pro$1.35/1MStep 3.5 Flash 2603 vs DeepSeek V4 Flash$0.74/1MStep 3.5 Flash 2603 vs Kimi K2.5$2.42/1MStep 3.5 Flash 2603 vs Kimi K2.6$2.42/1MStep 3.5 Flash 2603 vs GLM 5.1$3.00/1MStep 3.5 Flash 2603 vs DeepSeek V4 Pro$0.74/1M

FAQ

Pricing is per 1M tokens (USD); confirm with the provider before production use.