Poolside: Laguna XS 2.1 vs xAI Grok 4.7: Live Promos, Pricing, Hidden Fees & Latency
Poolside: Laguna XS 2.1 (poolside/laguna-xs-2.1) 2026 Q4 Developer Promotion & Volume Credits
Official 2026 Q4 promotion for Poolside: Laguna XS 2.1: Activate ephemeral prefix caching to slash input costs by 50% (down to 0.03/1M) or route via asynchronous Batch API for 50% off standard token rates.
xAI Grok 4.7 (x-ai/grok-4.7) 2026 Q4 Developer Promotion & Volume Credits
Official 2026 Q4 promotion for xAI Grok 4.7: Activate ephemeral prefix caching to slash input costs by 75% (down to 0.5/1M) or route via asynchronous Batch API for 50% off standard token rates.
In Etuki October 2026 FinOps telemetry comparing Poolside: Laguna XS 2.1 (API ID: poolside/laguna-xs-2.1) vs xAI Grok 4.7 (API ID: x-ai/grok-4.7), Poolside: Laguna XS 2.1 offers lower standard input pricing at $0.06/1M tokens ($0.12/1M output), while Poolside: Laguna XS 2.1 leads in cached prefix economics at $0.03/1M tokens (50% discount). xAI Grok 4.7 achieves a 150ms faster P90 time-to-first-token latency (130ms vs 280ms).
Auto-discovered via live global telemetry registry.
⚠️ 200K Full-Request Cliff: Prompts >=200,000 tokens (including cached tokens) double to $4.00/$12.00 ($1.00 cache). US regional endpoint adds +10%.
| Specification / FinOps Dimension | Poolside: Laguna XS 2.1 | xAI Grok 4.7 | Verified Advantage |
|---|---|---|---|
| Official Vendor API ID | poolside/laguna-xs-2.1 | x-ai/grok-4.7 | Pinned Snapshot IDs |
| Standard Input / Output (per 1M) | $0.06 / $0.12 | $2 / $6 | Poolside: Laguna XS 2.1 |
| Cache Read Price (per 1M) | $0.03/1M (50% Off) | $0.5/1M (75% Off) | Poolside: Laguna XS 2.1 |
| Context Window / Max Output | 256K In / 32K Out | 500K In / 128K Out | xAI Grok 4.7 |
| P90 First-Token / Edge Latency | 280ms | 130ms | xAI Grok 4.7 (-150ms) |
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
xAI Grok 4.7 frontier reasoning model: <200K tokens at $2.00/$6.00 (Cache $0.50/1M); >=200K tokens jumps 2x to $4.00/$12.00 (Cache $1.00/1M) for the full request.
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 Poolside: Laguna XS 2.1 to xAI Grok 4.7
xAI Grok 4.7 frontier reasoning model: <200K tokens at $2.00/$6.00 (Cache $0.50/1M); >=200K tokens jumps 2x to $4.00/$12.00 (Cache $1.00/1M) for the full request. Verified P90 latency of 130ms.