Z.ai: GLM 5.2 vs AionLabs: Aion 3.5: Live Promos, Pricing, Hidden Fees & Latency
Verified 2026 FinOps benchmark comparing Z.ai: GLM 5.2 (z-ai/glm-5.2) vs AionLabs: Aion 3.5 (aion-labs/aion-3.5). Simulate cache read multipliers, context cliffs, MAU bills, and P90 latency.
Z.ai: GLM 5.2 (z-ai/glm-5.2) 2026 Q4 Developer Promotion & Volume Credits
Official 2026 Q4 promotion for Z.ai: GLM 5.2: Activate ephemeral prefix caching to slash input costs by 50% (down to $0.0132/1M) or route via asynchronous Batch API for 50% off standard token rates.
AionLabs: Aion 3.5 (aion-labs/aion-3.5) 2026 Q4 Developer Promotion & Volume Credits
Official 2026 Q4 promotion for AionLabs: Aion 3.5: Activate ephemeral prefix caching to slash input costs by 50% (down to $1.5/1M) or route via asynchronous Batch API for 50% off standard token rates.
In Etuki October 2026 FinOps telemetry comparing Z.ai: GLM 5.2 (API ID: z-ai/glm-5.2) vs AionLabs: Aion 3.5 (API ID: aion-labs/aion-3.5), Z.ai: GLM 5.2 offers lower standard input pricing at $0.0264/1M tokens ($7/1M output), while Z.ai: GLM 5.2 leads in cached prefix economics at $0.0132/1M tokens (50% discount). Z.ai: GLM 5.2 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 5.2 | AionLabs: Aion 3.5 | Verified Advantage |
|---|---|---|---|
| Official Vendor API ID | z-ai/glm-5.2 | aion-labs/aion-3.5 | Pinned Snapshot IDs |
| Standard Input / Output (per 1M) | $0.0264 / $7 | $3 / $6 | Z.ai: GLM 5.2 |
| Cache Read Price (per 1M) | $0.0132/1M (50% Off) | $1.5/1M (50% Off) | Z.ai: GLM 5.2 |
| Context Window / Max Output | 1024K In / 922K Out | 256K In / 32K Out | Z.ai: GLM 5.2 |
| P90 First-Token / Edge Latency | 280ms | 280ms | Z.ai: GLM 5.2 (-0ms) |
GLM 5.2 is a large-scale reasoning model from Z.ai. It supports text input and output with a 1M-token context window, and is suited for long-horizon agent workflows, project-level
Aion 3.5 is a multi-model roleplaying and storytelling system from AionLabs, built on the GLM family of models. It uses a collaborative generation process in which multiple special
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 5.2 to AionLabs: Aion 3.5
Aion 3.5 is a multi-model roleplaying and storytelling system from AionLabs, built on the GLM family of models. It uses a collaborative generation process in which multiple special Verified P90 latency of 280ms.