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stepfun-ai
Step-3.5-Flash
C++2026–2026
stepfun-ai / Step-3.5-Flash

Step-3.5-Flash

Fast, Sharp & Reliable Agentic Intelligence

AI & Machine Learning
Explore on GitHubRead Hacker News discussions
2Distinct people
2Mentions
0Explicit recommenders
2.1KGitHub stars
REPOSITORY AT A GLANCE

What to know before exploring

What it is

Fast, Sharp & Reliable Agentic Intelligence

GitHub

Where it is used

No documented product use has been verified yet.

What people are saying

No recommendation phrase was found in the indexed comments.

No classified warning is attached to this page. Read the discussions before treating silence as approval.

Also in these discussions

No other repository is repeatedly linked in the same discussions.

This week on Hacker News

Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 3:56:07 PM UTC.

No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.

Mentions over time

HN mentions by day2 dated mentions

Observed mentions: 2026-02-05 15:27:22 UTC to 2026-03-01 01:14:30 UTC.

012026-02-05 00:00:00 UTC to 2026-02-06 00:00:00 UTC (exclusive): 1 mentions; 1 submissions, 0 commentsFeb 52026-02-06 00:00:00 UTC to 2026-02-07 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-02-07 00:00:00 UTC to 2026-02-08 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-02-08 00:00:00 UTC to 2026-02-09 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-02-09 00:00:00 UTC to 2026-02-10 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-02-10 00:00:00 UTC to 2026-02-11 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-02-11 00:00:00 UTC to 2026-02-12 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-02-12 00:00:00 UTC to 2026-02-13 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-02-13 00:00:00 UTC to 2026-02-14 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-02-14 00:00:00 UTC to 2026-02-15 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-02-15 00:00:00 UTC to 2026-02-16 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-02-16 00:00:00 UTC to 2026-02-17 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-02-17 00:00:00 UTC to 2026-02-18 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 commentsFeb 172026-02-18 00:00:00 UTC to 2026-02-19 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-02-19 00:00:00 UTC to 2026-02-20 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-02-20 00:00:00 UTC to 2026-02-21 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-02-21 00:00:00 UTC to 2026-02-22 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-02-22 00:00:00 UTC to 2026-02-23 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-02-23 00:00:00 UTC to 2026-02-24 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-02-24 00:00:00 UTC to 2026-02-25 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-02-25 00:00:00 UTC to 2026-02-26 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-02-26 00:00:00 UTC to 2026-02-27 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-02-27 00:00:00 UTC to 2026-02-28 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-02-28 00:00:00 UTC to 2026-03-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-03-01 00:00:00 UTC to 2026-03-02 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 commentsMar 1

Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.

View mention counts and date ranges
UTC ranges include their start and exclude their end. Select a period to filter the source evidence.
PeriodStart (UTC)End (exclusive, UTC)MentionsSubmissionsComments
Feb 52026-02-05 00:00:00 UTC2026-02-06 00:00:00 UTC110
Feb 62026-02-06 00:00:00 UTC2026-02-07 00:00:00 UTC000
Feb 72026-02-07 00:00:00 UTC2026-02-08 00:00:00 UTC000
Feb 82026-02-08 00:00:00 UTC2026-02-09 00:00:00 UTC000
Feb 92026-02-09 00:00:00 UTC2026-02-10 00:00:00 UTC000
Feb 102026-02-10 00:00:00 UTC2026-02-11 00:00:00 UTC000
Feb 112026-02-11 00:00:00 UTC2026-02-12 00:00:00 UTC000
Feb 122026-02-12 00:00:00 UTC2026-02-13 00:00:00 UTC000
Feb 132026-02-13 00:00:00 UTC2026-02-14 00:00:00 UTC000
Feb 142026-02-14 00:00:00 UTC2026-02-15 00:00:00 UTC000
Feb 152026-02-15 00:00:00 UTC2026-02-16 00:00:00 UTC000
Feb 162026-02-16 00:00:00 UTC2026-02-17 00:00:00 UTC000
Feb 172026-02-17 00:00:00 UTC2026-02-18 00:00:00 UTC000
Feb 182026-02-18 00:00:00 UTC2026-02-19 00:00:00 UTC000
Feb 192026-02-19 00:00:00 UTC2026-02-20 00:00:00 UTC000
Feb 202026-02-20 00:00:00 UTC2026-02-21 00:00:00 UTC000
Feb 212026-02-21 00:00:00 UTC2026-02-22 00:00:00 UTC000
Feb 222026-02-22 00:00:00 UTC2026-02-23 00:00:00 UTC000
Feb 232026-02-23 00:00:00 UTC2026-02-24 00:00:00 UTC000
Feb 242026-02-24 00:00:00 UTC2026-02-25 00:00:00 UTC000
Feb 252026-02-25 00:00:00 UTC2026-02-26 00:00:00 UTC000
Feb 262026-02-26 00:00:00 UTC2026-02-27 00:00:00 UTC000
Feb 272026-02-27 00:00:00 UTC2026-02-28 00:00:00 UTC000
Feb 282026-02-28 00:00:00 UTC2026-03-01 00:00:00 UTC000
Mar 12026-03-01 00:00:00 UTC2026-03-02 00:00:00 UTC101

What Hacker News says

2 sources
kir-gadjello·Mar 1, 2026
Respectfully, from my experience and a few billions of tokens consumed, some opensource models really are strong and useful. Specifically StepFun-3.5-flash https://github.com/stepfun-ai/Step-3.5-Flash I'm working on a pretty complex Rust codebase right now, with hundreds of integration tests and nontrivial concurrency, and stepfun powers through. I have no relation to stepfun, and I'm saying this purely from deep respect to the team that managed to pack this performance in 196B/11B active envelope.
In Qwen3.5 122B and 35B models offer Sonnet 4.5 performance on local computers

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