StepFun: Step 5 Preview vs TheDrummer: UnslopNemo 12B: Live Promos, Pricing, Hidden Fees & Latency
Verified 2026 FinOps benchmark comparing StepFun: Step 5 Preview (stepfun/step-5-preview) vs TheDrummer: UnslopNemo 12B (thedrummer/unslopnemo-12b). Simulate cache read multipliers, context cliffs, MAU bills, and P90 latency.
StepFun: Step 5 Preview (stepfun/step-5-preview) 2026 Q4 Developer Promotion & Volume Credits
Official 2026 Q4 promotion for StepFun: Step 5 Preview: Activate ephemeral prefix caching to slash input costs by 50% (down to $0.5/1M) or route via asynchronous Batch API for 50% off standard token rates.
TheDrummer: UnslopNemo 12B (thedrummer/unslopnemo-12b) 2026 Q4 Developer Promotion & Volume Credits
Official 2026 Q4 promotion for TheDrummer: UnslopNemo 12B: Activate ephemeral prefix caching to slash input costs by 50% (down to $0.2/1M) or route via asynchronous Batch API for 50% off standard token rates.
In Etuki October 2026 FinOps telemetry comparing StepFun: Step 5 Preview (API ID: stepfun/step-5-preview) vs TheDrummer: UnslopNemo 12B (API ID: thedrummer/unslopnemo-12b), TheDrummer: UnslopNemo 12B offers lower standard input pricing at $0.4/1M tokens ($0.4/1M output), while TheDrummer: UnslopNemo 12B leads in cached prefix economics at $0.2/1M tokens (50% discount). StepFun: Step 5 Preview achieves a 0ms faster P90 time-to-first-token latency (280ms vs 280ms).
Auto-discovered via live global telemetry registry.
Auto-discovered via live global telemetry registry.
| Specification / FinOps Dimension | StepFun: Step 5 Preview | TheDrummer: UnslopNemo 12B | Verified Advantage |
|---|---|---|---|
| Official Vendor API ID | stepfun/step-5-preview | thedrummer/unslopnemo-12b | Pinned Snapshot IDs |
| Standard Input / Output (per 1M) | $1 / $2.7 | $0.4 / $0.4 | TheDrummer: UnslopNemo 12B |
| Cache Read Price (per 1M) | $0.5/1M (50% Off) | $0.2/1M (50% Off) | TheDrummer: UnslopNemo 12B |
| Context Window / Max Output | 1024K In / 63K Out | 1000K In / 800K Out | TheDrummer: UnslopNemo 12B |
| P90 First-Token / Edge Latency | 280ms | 280ms | StepFun: Step 5 Preview (-0ms) |
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 softwar
UnslopNemo v4.1 is the latest addition from the creator of Rocinante, designed for adventure writing and role-play scenarios.
Real-Time Stack Cost & Hidden-Fee Simulator (MAU / Token / Egress / GMV)
Calibrated with Reddit r/FinOps & r/devops telemetry: Includes Context Caching, Bandwidth Egress, and MoR Tax
🛰️Switch from StepFun: Step 5 Preview to TheDrummer: UnslopNemo 12B
UnslopNemo v4.1 is the latest addition from the creator of Rocinante, designed for adventure writing and role-play scenarios. Verified P90 latency of 280ms.