Model Comparison

Step 3.5 Flash
vs. Claude Fable 5.2 (Max, Default Fallback)

Comparing 2 AI models · 0 benchmarks · StepFun, Anthropic

Recommended Pick

Step 3.5 Flash6 metric wins

Strongest on: Input price, Output price, Blended price

Lowest Price

Step 3.5 Flash

$0.10/1M input price

Differences That Matter

Price gap

Step 3.5 Flash is 80x cheaper on input tokens than Claude Fable 5.2 (Max, Default Fallback).

Speed gap

Step 3.5 Flash generates about 1.7x as many tokens per second as Claude Fable 5.2 (Max, Default Fallback).

Top-pick rationale

Step 3.5 Flash wins 6 measurable categories, including Input price, Output price, Blended price, Throughput.

Live compare

Response Face-Off

Run one prompt through the selected models and compare response quality with live speed and cost context.

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Step 3.5 Flash

StepFun

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Claude Fable 5.2 (Max, Default Fallback)

Anthropic

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Full Comparison

Metric	Top Pick St Step 3.5 Flash StepFun	An Claude Fable 5.2 (Max, Default Fallback) Anthropic
Pricing per 1M tokens
Input Cost	$0.10/1M	$8.00/1M
Output Cost	$0.30/1M	$40.00/1M
Blended (3:1)	$0.15/1M	$16.00/1M
Specifications
Organization	StepFun	Anthropic
Release Date	Feb 2, 2026	Nov 9, 2026
Performance & Speed
Throughput	157.4 tok/s	94.7 tok/s
TTFT	3410ms	253380ms
Latency	16110ms	253380ms
Composite Indices
Value Score	—	100.0
Reasoning Score	—	64.6
Intelligence	—	64.6