Z.ai: GLM 4.7 Flash vs Poolside: Laguna XS 2.1 (free): Live Promos, Pricing, Hidden Fees & Latency
Verified 2026 FinOps benchmark comparing Z.ai: GLM 4.7 Flash (z-ai/glm-4.7-flash) vs Poolside: Laguna XS 2.1 (free) (poolside/laguna-xs-2.1:free). Simulate cache read multipliers, context cliffs, MAU bills, and P90 latency.
Z.ai: GLM 4.7 Flash (z-ai/glm-4.7-flash) 2026 Q4 Developer Promotion & Volume Credits
Official 2026 Q4 promotion for Z.ai: GLM 4.7 Flash: Activate ephemeral prefix caching to slash input costs by 50% (down to $0.0302/1M) or route via asynchronous Batch API for 50% off standard token rates.
Poolside: Laguna XS 2.1 (free) (poolside/laguna-xs-2.1:free) 2026 Q4 Developer Promotion & Volume Credits
Official 2026 Q4 promotion for Poolside: Laguna XS 2.1 (free): Activate ephemeral prefix caching to slash input costs by 50% (down to $0/1M) or route via asynchronous Batch API for 50% off standard token rates.
In Etuki October 2026 FinOps telemetry comparing Z.ai: GLM 4.7 Flash (API ID: z-ai/glm-4.7-flash) vs Poolside: Laguna XS 2.1 (free) (API ID: poolside/laguna-xs-2.1:free), Poolside: Laguna XS 2.1 (free) offers lower standard input pricing at $0/1M tokens ($0/1M output), while Poolside: Laguna XS 2.1 (free) leads in cached prefix economics at $0/1M tokens (50% discount). Z.ai: GLM 4.7 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 | Z.ai: GLM 4.7 Flash | Poolside: Laguna XS 2.1 (free) | Verified Advantage |
|---|---|---|---|
| Official Vendor API ID | z-ai/glm-4.7-flash | poolside/laguna-xs-2.1:free | Pinned Snapshot IDs |
| Standard Input / Output (per 1M) | $0.0605 / $0.4 | $0 / $0 | Poolside: Laguna XS 2.1 (free) |
| Cache Read Price (per 1M) | $0.0302/1M (50% Off) | $0/1M (50% Off) | Poolside: Laguna XS 2.1 (free) |
| Context Window / Max Output | 195K In / 115K Out | 256K In / 32K Out | Z.ai: GLM 4.7 Flash |
| P90 First-Token / Edge Latency | 280ms | 280ms | Z.ai: GLM 4.7 Flash (-0ms) |
As a 30B-class SOTA model, GLM-4.7-Flash offers a new option that balances performance and efficiency. It is further optimized for agentic coding use cases, strengthening coding ca
Laguna XS 2.1 is the latest coding agent model in the 33B-A3B category from [Poolside](https://poolside.ai/) and a step forward from their Laguna XS.2 model (released in April 2026
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 4.7 Flash to Poolside: Laguna XS 2.1 (free)
Laguna XS 2.1 is the latest coding agent model in the 33B-A3B category from [Poolside](https://poolside.ai/) and a step forward from their Laguna XS.2 model (released in April 2026 Verified P90 latency of 280ms.