StepFun: Step 3.7 Flash vs Nex AGI: Nex-N2.5-Pro: Live Promos, Pricing, Hidden Fees & Latency
Verified 2026 FinOps benchmark comparing StepFun: Step 3.7 Flash (stepfun/step-3.7-flash) vs Nex AGI: Nex-N2.5-Pro (nex-agi/nex-n2.5-pro). Simulate cache read multipliers, context cliffs, MAU bills, and P90 latency.
StepFun: Step 3.7 Flash (stepfun/step-3.7-flash) 2026 Q4 Developer Promotion & Volume Credits
Official 2026 Q4 promotion for StepFun: Step 3.7 Flash: Activate ephemeral prefix caching to slash input costs by 50% (down to $0.1/1M) or route via asynchronous Batch API for 50% off standard token rates.
Nex AGI: Nex-N2.5-Pro (nex-agi/nex-n2.5-pro) 2026 Q4 Developer Promotion & Volume Credits
Official 2026 Q4 promotion for Nex AGI: Nex-N2.5-Pro: Activate ephemeral prefix caching to slash input costs by 50% (down to $0.0375/1M) or route via asynchronous Batch API for 50% off standard token rates.
In Etuki October 2026 FinOps telemetry comparing StepFun: Step 3.7 Flash (API ID: stepfun/step-3.7-flash) vs Nex AGI: Nex-N2.5-Pro (API ID: nex-agi/nex-n2.5-pro), Nex AGI: Nex-N2.5-Pro offers lower standard input pricing at $0.075/1M tokens ($0.25/1M output), while Nex AGI: Nex-N2.5-Pro leads in cached prefix economics at $0.0375/1M tokens (50% discount). StepFun: Step 3.7 Flash 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 3.7 Flash | Nex AGI: Nex-N2.5-Pro | Verified Advantage |
|---|---|---|---|
| Official Vendor API ID | stepfun/step-3.7-flash | nex-agi/nex-n2.5-pro | Pinned Snapshot IDs |
| Standard Input / Output (per 1M) | $0.2 / $1.15 | $0.075 / $0.25 | Nex AGI: Nex-N2.5-Pro |
| Cache Read Price (per 1M) | $0.1/1M (50% Off) | $0.0375/1M (50% Off) | Nex AGI: Nex-N2.5-Pro |
| Context Window / Max Output | 256K In / 225K Out | 256K In / 230K Out | Nex AGI: Nex-N2.5-Pro |
| P90 First-Token / Edge Latency | 280ms | 280ms | StepFun: Step 3.7 Flash (-0ms) |
Step 3.7 Flash is StepFun's latest high-efficiency multimodal Mixture-of-Experts model. It pairs a 196B-parameter language backbone with a vision encoder for native image and video
Nex-N2.5 is an agentic model built to turn goals into working, verified outcomes. Its core strength is agentic coding within a visual feedback loop: it can explore codebases, imple
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 3.7 Flash to Nex AGI: Nex-N2.5-Pro
Nex-N2.5 is an agentic model built to turn goals into working, verified outcomes. Its core strength is agentic coding within a visual feedback loop: it can explore codebases, imple Verified P90 latency of 280ms.