StepFun: Step 5 Preview
budgetstepfun/step-5-preview
Step 5 Preview is StepFun's flagship model for agentic work, built on a sparse Mixture-of-Experts architecture (27B active / 600B total parameters). It performs strongly in software engineering and professional...
AA INDEX28.5
CONTEXT1000K
MODALITYtext+image+video->text
OPENNESSProprietary
ADDEDSep 2026
LAST PRICED37 min ago
Input
$1.00 /M
Output
$2.70 /M
Blended (40/60)
$2.02 /M
Cost / IQ
$2.8351 /M
Cost / IQ = Blended Price ÷ (AA Intelligence Score ÷ 40). Normalises price by model intelligence so you can compare value across tiers. Lower = better value per unit of intelligence. Not a transactional price.
24h0%
7d0%
Price History
30-day view, daily close
Low: $2.02/M
High: $2.02/M
Average: $2.02/M
Pricing Variants
Cached Input
$0.10/M
90% cheaper than standard
Provider Comparison
3 providers · click a column to sort
| Provider | Input $/M | Output $/M | Blended $/M ↑ | vs Median |
|---|---|---|---|---|
| ↓Featherless | $1.00 | $2.70 | $2.02 | median |
| Novita | $1.00 | $2.70 | $2.02 | median |
| StepFun | $1.00 | $2.70 | $2.02 | median |
Blended price = 40% input + 60% output. Median price shown in header is the reference price for this model.
Cost / IQ Comparison
Cost / IQ (quality-adjusted $/M)$2.8351/M
Cost per GPT-4-equivalent token. Lower = better value. Comparable across all models.
At or below SIT TPI
Value Ranking (by Cost / IQ)
Rank #157 of 189 budget models
← YOU ARE HERE | StepFun: Step 5 Preview
Data Sources
Source
Aggregator & direct provider data
3 sources · updated recently
API Access
# Get this model's current price
curl https://api.inferenceindexer.ai/v1/models/stepfun/step-5-preview
# Response (truncated)
{ "model_id": "stepfun/step-5-preview", "name": "StepFun: Step 5 Preview", "blended_price_per_m": 2.02, "sit_adjusted_price": 2.835088 }