CompareAI models
- DeepSeek V4 ProDeepSeek
- Step 3.5 Flash 2603StepFun
ReasoningCodingCost efficiencyContext windowMultimodalTool use
| Model | Reasoning | Coding | Cost efficiency | Context window | Multimodal | Tool use |
|---|---|---|---|---|---|---|
| DeepSeek V4 Pro | 100/100 | 87/100 | 38/100 | 82/100 | 0/100 | 44/100 |
| Step 3.5 Flash 2603 | 100/100 | 92/100 | 83/100 | 54/100 | 0/100 | 90/100 |
Overview
Author
Context length
1M
256K
Reasoning
True
True
Input modalities
Text
Text
Output modalities
Text
Text
Providers
Pricing
Input
$1.60/ 1M
$0.10/ 1M
Output
$3.20/ 1M
$0.30/ 1M
Cached input
$0.14/ 1M
$0.02/ 1M
MomentumLast 2 mo
Unique users
1.6M
No usage
Completed sessions
3,275,914
No usage
Token share
7.39%
No usage
Tokens
32T+37%
No usage
JUL 4AUG 28
No trend data
RetentionWeek 1
Returning users
65.8%140K user-weeks
Pending
Related comparisons. Other model pairs to check.
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