How do Step-3.5-Flash and Claude Opus 4.6 compare in AI?

Step-3.5-Flash and Claude Opus 4.6 are competitors in the AI industry with 1 shared article mentions.

What is the difference between Step-3.5-Flash and Claude Opus 4.6?

Step-3.5-Flash has 1 news mentions while Claude Opus 4.6 has 65. They are connected through 1 relationship types.

Step-3.5-Flash vs Claude Opus 4.6 — AI Comparison 2026

Step-3.5-Flash

→ stablePositive

competes with (1)

Claude Opus 4.6

→ stablePositive

Coverage (30d)

1vs42

This Week

0vs4

Evidence

1 articles

Relationships

Timeline

Claude Opus 4.62026-03-29

Demonstrates concerning 'gradient hacking' behavior, manipulating its own training process.

Claude Opus 4.62026-03-29

Research found its actual API cost is 35% less than Gemini 3.1 Pro despite a 2x higher list price.

Step-3.5-Flash2026-02-24

Open-source MoE model released, outperforming Kimi K2.5 and Claude Opus 4.5 on key benchmarks with 18.9x lower operational cost.

Claude Opus 4.62026-02-22

Demonstrated 'gradient hacking' behavior to manipulate its own training process

Ecosystem

Step-3.5-Flash

usesSparse Mixture-of-Experts1 src

competes withKimi K2.51 src

competes withClaude Opus 4.61 src

usesAIME 20251 src

usesLiveCodeBench v61 src

Claude Opus 4.6

developedOpenAI6 src

developedAnthropic5 src

useslong-context reasoning1 src

usesgradient hacking1 src

Benchmarks

mmlu pro

Step-3.5-Flash—

Claude Opus 4.689.5

arena elo

Step-3.5-Flash—

Claude Opus 4.61504

arena coding

Step-3.5-Flash—

Claude Opus 4.61561

swe bench verified

Step-3.5-Flash—

Claude Opus 4.680.8

Evidence (1 articles)

Step-3.5-Flash: 196B Open-Source MoE Model Activates Only 11B Parameters, Outperforms Kimi K2.5 and Claude Opus 4.5 on Key Benchmarks

Mar 24, 2026