Z.ai: GLM 5V Turbo vs Google: Gemini 3.8 Flash: Live Promos, Pricing, Hidden Fees & Latency
Verified 2026 FinOps benchmark comparing Z.ai: GLM 5V Turbo (z-ai/glm-5v-turbo) vs Google: Gemini 3.8 Flash (google/gemini-3.8-flash). Simulate cache read multipliers, context cliffs, MAU bills, and P90 latency.
Z.ai: GLM 5V Turbo (z-ai/glm-5v-turbo) 2026 Q4 Developer Promotion & Volume Credits
Official 2026 Q4 promotion for Z.ai: GLM 5V Turbo: Activate ephemeral prefix caching to slash input costs by 50% (down to $0.6/1M) or route via asynchronous Batch API for 50% off standard token rates.
Google: Gemini 3.8 Flash (google/gemini-3.8-flash) — Google AI Startup Credits ($350K) & 50% Cache Promo
Google DeepMind is currently subsidizing Gemini 4 Argon at 50% off standard rates ($2.00/1M input & $10.00/1M output instead of $4/$20) until November 30, 2026, alongside 95% off Context Caching ($0.10/1M) and up to $350,000 in Google for Startups Cloud/Vertex AI credits.
In Etuki October 2026 FinOps telemetry comparing Z.ai: GLM 5V Turbo (API ID: z-ai/glm-5v-turbo) vs Google: Gemini 3.8 Flash (API ID: google/gemini-3.8-flash), Google: Gemini 3.8 Flash offers lower standard input pricing at $0.75/1M tokens ($3.75/1M output), while Google: Gemini 3.8 Flash leads in cached prefix economics at $0.375/1M tokens (50% discount). Z.ai: GLM 5V Turbo 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 | Z.ai: GLM 5V Turbo | Google: Gemini 3.8 Flash | Verified Advantage |
|---|---|---|---|
| Official Vendor API ID | z-ai/glm-5v-turbo | google/gemini-3.8-flash | Pinned Snapshot IDs |
| Standard Input / Output (per 1M) | $1.2 / $4 | $0.75 / $3.75 | Google: Gemini 3.8 Flash |
| Cache Read Price (per 1M) | $0.6/1M (50% Off) | $0.375/1M (50% Off) | Google: Gemini 3.8 Flash |
| Context Window / Max Output | 198K In / 128K Out | 1024K In / 64K Out | Z.ai: GLM 5V Turbo |
| P90 First-Token / Edge Latency | 280ms | 280ms | Z.ai: GLM 5V Turbo (-0ms) |
GLM-5V-Turbo is Z.ai’s first native multimodal agent foundation model, built for vision-based coding and agent-driven tasks. It natively handles image, video, and text inputs, exce
Gemini 3.8 Flash is Google's most intelligent Flash model with significant gains from 3.7 Flash across software engineering, agentic tasks, and multi-step reasoning.
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 Z.ai: GLM 5V Turbo to Google: Gemini 3.8 Flash
Gemini 3.8 Flash is Google's most intelligent Flash model with significant gains from 3.7 Flash across software engineering, agentic tasks, and multi-step reasoning. Verified P90 latency of 280ms.