Thoughts on AI, technology, and the future we're building.
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Thoughts on AI, technology, and the future we're building.
New posts every week
A lab-level profile for Stepfun, covering tracked models, category leaders, open/proprietary mix, speed, value, source coverage, and portfolio depth.
Lab rank
#22
By available Arena average
Models tracked
3
1 open-weight models
Portfolio coverage
11%
Average matched benchmark signals
Fastest model
Not listed
Lab profile
The lab page now starts with the portfolio read, then drills into category leaders, value rankings, and model-level coverage rather than repeating source panels.
Portfolio read
The portfolio combines 2 proprietary models and 1 open-weight models. Its average available Arena rank is 82, with a best category rank of #75. Average profile coverage is 11%, so model-level gaps remain visible in the cards below.
Best Arena model
Step 1o Turbo 202506
Best category rank #75
Highest coverage
Step 1o Turbo 202506
11% matched signals
Fastest response
Not listed
No latency match
Access mix
Proprietary
2 / 67%
Open weights
1 / 33%
Value leader
Not listed
Category leaders
Each card shows the highest-ranked model from this lab in a composite benchmark suite, with the global rank and index left intact.
Value
Quality, price, latency, and speed
Not listed
Not enough matched rows for this lab in this suite.
Coding
Code Arena, SWE-bench, and output speed
Not listed
Not enough matched rows for this lab in this suite.
Agents
Search, document, code, and latency
Not listed
Not enough matched rows for this lab in this suite.
Reasoning
Text, document, vision, and mode signals
Step 1o Turbo 202506
reasoning proxy
Context
Document, search, and text proxy
Not listed
Not enough matched rows for this lab in this suite.
Model portfolio
Every tracked model keeps its best Arena rank, coverage score, commercial metrics, and suite placement visible in one scannable grid.
Step 1o Turbo 202506
step-1o-turbo-202506
Coverage
11%
Best Arena
#75
Vision
Value
Not listed
No price match
Coding
Not listed
No coding index
Latency
Not listed
Not listed
Step 3
step-3
Coverage
11%
Best Arena
#82
Vision
Value
Not listed
No price match
Coding
Not listed
No coding index
Latency
Not listed
Not listed
Step 1o Vision 32K Highres
step-1o-vision-32k-highres
Coverage
11%
Best Arena
#89
Vision
Value
Not listed
No price match
Coding
Not listed
No coding index
Latency
Not listed
Not listed
