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Comparison

Deepseek V4 Flash vs Step 3.5 Flash

Side-by-side comparison of DeepSeek Deepseek V4 Flash and Stepfun Step 3.5 Flash. Pricing, quality benchmarks, and context windows.

Quality Benchmarks

LiveBench / 0-100

Coding58 / 79Math80 / 79Reasoning72 / 79Language67 / 79

Deepseek V4 Flash

68.9Frontier

Step 3.5 Flash

79.3Frontier

Deepseek V4 Flash
Step 3.5 Flash

Input Price (per 1M)

$0.0983
$0.0900
8% less

Output Price (per 1M)

$0.1966
34% less
$0.3000

Context Window

1.0M
4.0x
262.1K

Max Output

131.1K
8.0x
16.4K

DeepSeek

Deepseek V4 Flash

vs

Stepfun

Step 3.5 Flash

Pricing per 1M Tokens

$0.0983

Input

Input

$0.0900

8% cheaper

Input

$0.1966

34% cheaper

Output

Output

$0.3000

Output

Token Limits

Context

1.0M

Context

Context

262.1K

Max Output

131.1K

Max Output

Max Output

16.4K

Tools
Tools

Deepseek V4 Flash Details

$0.0983 in / $0.1966 out

Step 3.5 Flash Details

$0.0900 in / $0.3000 out

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