Z.ai: GLM 5.3 (batch) vs Upstage: Solar Pro 3: Live Promos, Pricing, Hidden Fees & Latency
Verified 2026 FinOps benchmark comparing Z.ai: GLM 5.3 (batch) (z-ai/glm-5.3:batch) vs Upstage: Solar Pro 3 (upstage/solar-pro-3). Simulate cache read multipliers, context cliffs, MAU bills, and P90 latency.
Z.ai: GLM 5.3 (batch) (z-ai/glm-5.3:batch) 2026 Q4 Developer Promotion & Volume Credits
Official 2026 Q4 promotion for Z.ai: GLM 5.3 (batch): Activate ephemeral prefix caching to slash input costs by 50% (down to $0.225/1M) or route via asynchronous Batch API for 50% off standard token rates.
Upstage: Solar Pro 3 (upstage/solar-pro-3) 2026 Q4 Developer Promotion & Volume Credits
Official 2026 Q4 promotion for Upstage: Solar Pro 3: Activate ephemeral prefix caching to slash input costs by 50% (down to $0.075/1M) or route via asynchronous Batch API for 50% off standard token rates.
In Etuki October 2026 FinOps telemetry comparing Z.ai: GLM 5.3 (batch) (API ID: z-ai/glm-5.3:batch) vs Upstage: Solar Pro 3 (API ID: upstage/solar-pro-3), Upstage: Solar Pro 3 offers lower standard input pricing at $0.15/1M tokens ($0.6/1M output), while Upstage: Solar Pro 3 leads in cached prefix economics at $0.075/1M tokens (50% discount). Z.ai: GLM 5.3 (batch) 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 (batch) | Upstage: Solar Pro 3 | Verified Advantage |
|---|---|---|---|
| Official Vendor API ID | z-ai/glm-5.3:batch | upstage/solar-pro-3 | Pinned Snapshot IDs |
| Standard Input / Output (per 1M) | $0.45 / $2 | $0.15 / $0.6 | Upstage: Solar Pro 3 |
| Cache Read Price (per 1M) | $0.225/1M (50% Off) | $0.075/1M (50% Off) | Upstage: Solar Pro 3 |
| Context Window / Max Output | 1024K In / 128K Out | 128K In / 115K Out | Z.ai: GLM 5.3 (batch) |
| P90 First-Token / Edge Latency | 280ms | 280ms | Z.ai: GLM 5.3 (batch) (-0ms) |
GLM-5.3 is a large-scale reasoning model from Z.ai, built for complex software engineering and long-horizon agent tasks. It supports text input and output with a 1M-token context w
Solar Pro 3 is Upstage's powerful Mixture-of-Experts (MoE) language model. With 102B total parameters and 12B active parameters per forward pass, it delivers exceptional performanc
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 (batch) to Upstage: Solar Pro 3
Solar Pro 3 is Upstage's powerful Mixture-of-Experts (MoE) language model. With 102B total parameters and 12B active parameters per forward pass, it delivers exceptional performanc Verified P90 latency of 280ms.