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Compare AI models: Kimi K2.8 Preview vs Step 5 Preview

  1. Kimi K2.8 PreviewMoonshotHollow points use fallbacks · hover for details
  2. Step 5 PreviewStepFunHollow points use fallbacks · hover for details
ReasoningCodingCost efficiencyContext windowMultimodalTool use
Normalized model capability scores
ModelReasoningCodingCost efficiencyContext windowMultimodalTool use
Kimi K2.8 Preview50/100 — Reasoning supported; no comparable benchmark50/100 — No data; neutral placeholder50/100 — No data; neutral placeholder93/10050/10050/100 — Tool calling supported; no comparable benchmark
Step 5 Preview50/100 — Reasoning supported; no comparable benchmark50/100 — No data; neutral placeholder38/10082/10050/10050/100 — Tool calling supported; no comparable benchmark
Overview
Author
Context length
1M
1M
Reasoning
True
True
Input modalities
Text, Image, Video
Text, Image, Video
Output modalities
Text
Text
Providers
Pricing
Input
Unknown
$1.06/ 1M
Output
Unknown
$2.86/ 1M
Cached input
Unknown
$0.05/ 1M
MomentumLast 2 mo
Unique users
0
114K
Completed sessions
1
2,630,706
Token share
0%
0.63%
Tokens
00%
7.2T+100%
No trend data
AUG 29OCT 23
RetentionWeek 1
Returning users
Pending
77.1%933 user-weeks

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