Step 5 Preview
By StepFun · released 2026-09-18 (5 weeks) · 1 effort level
1 of 1 on the frontier at launchOff the frontier todayopen weights
- Intelligence index
- 43.70
- Cost to run the AA index
- $1190
- Price per 1M tokens (in / out)
- $1.00 / $2.70
Today
Where Step 5 Preview stands on the 2026-10-25 frontier
No measured level is on the frontier today.
| Level | Input modalities | Intelligence | Cost | E2E | Today | Matchup |
|---|---|---|---|---|---|---|
| Step 5 Preview | Text, Image | 43.70 | $1190 | 12.0s | beaten by GPT-6.1 Sol (Max) | Compare |
Step 5 Preview effort levelsToday's Pareto frontierOpen-weights frontierEvery other model
Matchup
Compare head to head
Suggested: what beats it, its effort levels, and frontier models near its price.
Launch day
What Step 5 Preview did to the frontier on 2026-09-18
Reached the frontier
Step 5 Preview
Reached the frontier1 of 1
Impact (hypervolume gained)0.20
Rank, past year's releases#34 of 46
Smartest level43.70
Cheapest level$1190
Reached the frontierMissed itDisplaced from the old frontierFrontier the day beforeFrontier after the releaseRegion gained (impact)
Agents:
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