StepFun: Step 5 Preview vs ByteDance Seed: Seed-2.0-Mini: Live Promos, Pricing, Hidden Fees & Latency
Verified 2026 FinOps benchmark comparing StepFun: Step 5 Preview (stepfun/step-5-preview) vs ByteDance Seed: Seed-2.0-Mini (bytedance-seed/seed-2.0-mini). 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.
ByteDance Seed: Seed-2.0-Mini (bytedance-seed/seed-2.0-mini) 2026 Q4 Developer Promotion & Volume Credits
Official 2026 Q4 promotion for ByteDance Seed: Seed-2.0-Mini: Activate ephemeral prefix caching to slash input costs by 50% (down to $0.05/1M) 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 ByteDance Seed: Seed-2.0-Mini (API ID: bytedance-seed/seed-2.0-mini), ByteDance Seed: Seed-2.0-Mini offers lower standard input pricing at $0.1/1M tokens ($0.4/1M output), while ByteDance Seed: Seed-2.0-Mini leads in cached prefix economics at $0.05/1M 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 | ByteDance Seed: Seed-2.0-Mini | Verified Advantage |
|---|---|---|---|
| Official Vendor API ID | stepfun/step-5-preview | bytedance-seed/seed-2.0-mini | Pinned Snapshot IDs |
| Standard Input / Output (per 1M) | $1 / $2.7 | $0.1 / $0.4 | ByteDance Seed: Seed-2.0-Mini |
| Cache Read Price (per 1M) | $0.5/1M (50% Off) | $0.05/1M (50% Off) | ByteDance Seed: Seed-2.0-Mini |
| Context Window / Max Output | 1024K In / 63K Out | 256K In / 128K Out | ByteDance Seed: Seed-2.0-Mini |
| 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
Seed-2.0-mini targets latency-sensitive, high-concurrency, and cost-sensitive scenarios, emphasizing fast response and flexible inference deployment. It delivers performance compar
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 ByteDance Seed: Seed-2.0-Mini
Seed-2.0-mini targets latency-sensitive, high-concurrency, and cost-sensitive scenarios, emphasizing fast response and flexible inference deployment. It delivers performance compar Verified P90 latency of 280ms.