Z.ai: GLM 5.3 Prime vs DeepSeek: DeepSeek V4 Pro 0813: Live Promos, Pricing, Hidden Fees & Latency
Verified 2026 FinOps benchmark comparing Z.ai: GLM 5.3 Prime (z-ai/glm-5.3-prime) vs DeepSeek: DeepSeek V4 Pro 0813 (deepseek/deepseek-v4-pro-0813). Simulate cache read multipliers, context cliffs, MAU bills, and P90 latency.
Z.ai: GLM 5.3 Prime (z-ai/glm-5.3-prime) 2026 Q4 Developer Promotion & Volume Credits
Official 2026 Q4 promotion for Z.ai: GLM 5.3 Prime: Activate ephemeral prefix caching to slash input costs by 50% (down to $1.4/1M) or route via asynchronous Batch API for 50% off standard token rates.
DeepSeek: DeepSeek V4 Pro 0813 (deepseek/deepseek-v4-pro-0813) — Automatic Disk KV Cache ($0.33/1M) & Off-Peak Promo
DeepSeek-V4 Pro (1.6T MoE) automatically caches repeated 64-token prompt prefixes on NVMe storage at $0.07/1M input tokens (50% off $0.14 base) with zero code changes required, plus off-peak UTC scheduling discounts.
In Etuki October 2026 FinOps telemetry comparing Z.ai: GLM 5.3 Prime (API ID: z-ai/glm-5.3-prime) vs DeepSeek: DeepSeek V4 Pro 0813 (API ID: deepseek/deepseek-v4-pro-0813), DeepSeek: DeepSeek V4 Pro 0813 offers lower standard input pricing at $0.66/1M tokens ($1.98/1M output), while DeepSeek: DeepSeek V4 Pro 0813 leads in cached prefix economics at $0.33/1M tokens (50% discount). Z.ai: GLM 5.3 Prime 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 5.3 Prime | DeepSeek: DeepSeek V4 Pro 0813 | Verified Advantage |
|---|---|---|---|
| Official Vendor API ID | z-ai/glm-5.3-prime | deepseek/deepseek-v4-pro-0813 | Pinned Snapshot IDs |
| Standard Input / Output (per 1M) | $2.8 / $8.8 | $0.66 / $1.98 | DeepSeek: DeepSeek V4 Pro 0813 |
| Cache Read Price (per 1M) | $1.4/1M (50% Off) | $0.33/1M (50% Off) | DeepSeek: DeepSeek V4 Pro 0813 |
| Context Window / Max Output | 977K In / 128K Out | 1024K In / 384K Out | DeepSeek: DeepSeek V4 Pro 0813 |
| P90 First-Token / Edge Latency | 280ms | 280ms | Z.ai: GLM 5.3 Prime (-0ms) |
GLM-5.3-Prime is the high-speed variant of Z.ai's GLM-5.3, inheriting its full capabilities while delivering 1.5–2× the output throughput through inference acceleration. It support
DeepSeek V4 Pro 0813 is a large-scale mixture-of-experts model from DeepSeek. This is the GA release of DeepSeek V4 Pro.
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 5.3 Prime to DeepSeek: DeepSeek V4 Pro 0813
DeepSeek V4 Pro 0813 is a large-scale mixture-of-experts model from DeepSeek. This is the GA release of DeepSeek V4 Pro. Verified P90 latency of 280ms.