Step 3.5 Flash
Released · 13 days after Step3 VL 10B
Key info
Context window
—
Max output
—
Input price
$0.10 /1M
Output price
$0.30 /1M
Prices are the median across providers tracked by Artificial Analysis, not Opper billing.
Benchmarks
Independent benchmark scores: the Intelligence Index and the individual evaluations behind it, grouped by skill.
Intelligence Index (previous version)16.6
Agentic & knowledge work
Terminal-Bench Hard
27%
τ²-Bench Telecom
94%
Science & reasoning
Humanity's Last Exam
21%
GPQA Diamond
83%
Long-context reasoning
50%
Math & instruction following
IFBench
65%
See full leaderboard →Benchmarks via Artificial Analysis · View on AA
Available routes
No routes currently available — Step 3.5 Flash isn't routed through the Opper gateway right now. It's tracked here for its release history.
Contact us about this model →