CompareAI models
- Claude Sonnet 5Anthropic
- Step 3.5 Flash 2603StepFun
ReasoningCodingCost efficiencyContext windowMultimodalTool use
| Model | Reasoning | Coding | Cost efficiency | Context window | Multimodal | Tool use |
|---|---|---|---|---|---|---|
| Claude Sonnet 5 | 100/100 | 92/100 | 20/100 | 82/100 | 50/100 | 92/100 |
| 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, Image, Pdf
Text
Output modalities
Text
Text
Providers
Pricing
Input
$2.00/ 1M
$0.10/ 1M
Output
$10/ 1M
$0.30/ 1M
Cached input
$0.20/ 1M
$0.02/ 1M
MomentumLast 2 mo
Unique users
No usage
No usage
Completed sessions
No usage
No usage
Token share
No usage
No usage
Tokens
No usage
No usage
No trend data
No trend data
RetentionWeek 1
Returning users
Pending
Pending
Related comparisons. Other model pairs to check.
Nearby alternativeClaude Sonnet 5 vs Gemma-SEA-LION-v4-27B-ITClaude Sonnet 5·Gemma-SEA-LION-v4-27B-ITNearby alternativeStep 3.5 Flash 2603 vs Gemma-SEA-LION-v4-27B-ITStep 3.5 Flash 2603·Gemma-SEA-LION-v4-27B-ITRelated comparisonClaude Sonnet 5 vs Qwen3.8 FlashClaude Sonnet 5·Qwen3.8 FlashRelated comparisonStep 3.5 Flash 2603 vs Qwen3.8 FlashStep 3.5 Flash 2603·Qwen3.8 Flash