Model decision surface
Compare AI models
Start with Intern S2 Preview 397B and Step 3.7 Flash, or choose any two current ranked language models. Compare capability evidence, price, context, provider availability, and weight access without pretending one field decides every use case.
Current public data
Intern S2 Preview 397B vs Step 3.7 Flash
Live dataset updated 9/19/2026, 11:04:59 PM UTC
Open 1200×630 evidence receipt| Field | Intern S2 Preview 397B Internlm | Step 3.7 Flash StepFun |
|---|---|---|
| ModelCap position | #94 | #97 |
| Index score | 49.4 | 49.2 |
| Evidence | Measuredglobal-corpus-prior over 195 held-out anchors (64%); 1 specialist-board observation at 1.2% support (36%); shrunk 5.9 up toward the measured corpus | Estimated3 reported rows against measured corpus ladders (17%); global-corpus-prior over 195 held-out anchors (18%); measured predecessor stepfun/step-3.5-flash less the succession penalty (65%); shrunk 0.8 up toward the measured corpus |
| Input / 1M | Unavailable | $0.20 |
| Output / 1M | Unavailable | $1.15 |
| Pricing status | unavailable | fresh |
| Context | — | 262K |
| Providers | 0 | 3 |
| Weight access | Open weights | Open weights |
Decision facts
- Intern S2 Preview 397B is #94; Step 3.7 Flash is #97 on the same current language board.
- Index scores are 49.4 for Intern S2 Preview 397B and 49.2 for Step 3.7 Flash. Their published uncertainty intervals overlap, so the rank difference alone does not establish a reliable capability advantage for your workload.
- Evidence differs: Intern S2 Preview 397B is Measured; Step 3.7 Flash is Estimated.
- ModelCap currently lists 0 providers for Intern S2 Preview 397B and 3 for Step 3.7 Flash.
These are separate published fields, not a synthetic winner. ModelCap does not collapse price, access, context, and capability evidence into a hidden recommendation score.
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Each comparison page is a permanent, shareable URL with the same live figures as this tool: ModelCap Index position, API pricing, context window, provider count, weight access and every shared benchmark board.