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Step 3.5 Flash 2603 – Benchmarks, Pricing & Intelligence Analysis

Not available on LLMBase

Step 3.5 Flash 2603 is not currently available in LLMBase Chat or the LLMBase Inference API. Benchmarks, pricing, and model details remain available for research and comparison.

Input Price$0.10/1M tokens
Output Price$0.30/1M tokens
Intelligence26.0
CodingN/A

Specifications

Technical details and pricing.

ProviderStepfun
Context WindowN/A
Release DateApr 2, 2026
ModalitiesText
AvailabilityNot available

Benchmarks

7 benchmark scores from Artificial Analysis.

GPQA82.6%
HLE22.6%
SciCode38.5%
LCR54.3%
IFBench66.5%
Tau287.4%
TerminalBench Hard32.6%

Composite Indices

Higher is better; speed and price are normalized

Standard Benchmarks

Only benchmarks with data are shown

Frequently Asked Questions

What is Step 3.5 Flash 2603 good for?

Step 3.5 Flash 2603 currently has benchmark and pricing data on this page. Runtime metadata will appear later when the model catalog entry becomes available.

How much does Step 3.5 Flash 2603 cost?

Pricing is based on usage. Current rates are $0.10/1M tokens for input and $0.30/1M tokens for output.

Is Step 3.5 Flash 2603 available in LLMBase Chat yet?

Not yet on this page. We will add chat and inference actions automatically once an exact catalog entry exists for Step 3.5 Flash 2603.

Does Step 3.5 Flash 2603 support images or audio?

Step 3.5 Flash 2603 focuses on text-based tasks.

Benchmarks and pricing use Artificial Analysis where available. Catalog specs are used as a fallback.