Step 3.5 Flash
Released · 13 days after Step3 VL 10B
Key info
Context window
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Max output
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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 — composite indices for reasoning, coding, and math, plus individual eval scores where available.
Global rank#260 of 676 LLMs
TierEfficient
Intelligence Index16.6
Reasoning & knowledge
GPQA Diamond
83%
Humanity's Last Exam
21%
Long-context reasoning
50%
Agentic & tool use
Terminal-Bench Hard
27%
τ²-Bench Telecom
94%
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.
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