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Comparison

Deepseek Chat V3.1 vs Step 3.5 Flash

Side-by-side comparison of DeepSeek Deepseek Chat V3.1 and Stepfun Step 3.5 Flash. Pricing, quality benchmarks, and context windows.

Quality Benchmarks

LiveBench / 0-100

Coding85 / 79Math85 / 79Reasoning85 / 79Language85 / 79

Deepseek Chat V3.1

84.5Frontier

Step 3.5 Flash

79.3Frontier

Deepseek Chat V3.1
Step 3.5 Flash

Input Price (per 1M)

$0.2100
$0.0900
57% less

Output Price (per 1M)

$0.7900
$0.3000
62% less

Context Window

163.8K
262.1K
1.6x

Max Output

32.8K
2.0x
16.4K

DeepSeek

Deepseek Chat V3.1

vs

Stepfun

Step 3.5 Flash

Pricing per 1M Tokens

$0.2100

Input

Input

$0.0900

57% cheaper

Input

$0.7900

Output

Output

$0.3000

62% cheaper

Output

Token Limits

Context

163.8K

Context

Context

262.1K

Max Output

32.8K

Max Output

Max Output

16.4K

Tools
Tools

Deepseek Chat V3.1 Details

$0.2100 in / $0.7900 out

Step 3.5 Flash Details

$0.0900 in / $0.3000 out

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