Step-3.5-Flash vs Kimi K2.5
Data-driven comparison powered by the gentic.news knowledge graph
Step-3.5-Flash:↑ rising
Kimi K2.5:↑ rising
competes with (1 sources)
Step-3.5-Flash
ai model
METRIC
Kimi K2.5
ai model
1
Total Mentions
4
1
Last 30 Days
4
1
Last 7 Days
2
↑ rising
Momentum
↑ rising
Positive (+0.80)
Sentiment (30d)
Positive (+0.35)
Mar 24, 2026
First Covered
Mar 4, 2026
Kimi K2.5 leads by 4.0x
Ecosystem
Step-3.5-Flash
usesSparse Mixture-of-Experts1 sources
competes withKimi K2.51 sources
competes withClaude Opus 4.61 sources
usesAIME 20251 sources
usesLiveCodeBench v61 sources
Kimi K2.5
usesMixture-of-Experts1 sources
usesSSD Streaming1 sources
Step-3.5-Flash
Step-3.5-Flash, developed by StepFun, is a 196B parameter open-source model that uses a sparse mixture-of-experts architecture with 11B active parameters to deliver frontier-level reasoning and coding performance efficiently.
Kimi K2.5
Kimi K2.5 is an open-source, multimodal AI model from Moonshot AI, featuring 1 trillion parameters, vision capabilities, and Agent Swarm technology for complex task orchestration.
Recent Events
Step-3.5-Flash
2026-02-24
Open-source MoE model released, outperforming Kimi K2.5 and Claude Opus 4.5 on key benchmarks with 18.9x lower operational cost.
Kimi K2.5
2026-03-24
Demonstrated running a 1T parameter MoE model on 96GB Mac hardware via SSD streaming.