Poolside: Laguna XS 2.1 (free) vs SpaceXAI: Grok 4.3 (batch): Live Promos, Pricing, Hidden Fees & Latency
Verified 2026 FinOps benchmark comparing Poolside: Laguna XS 2.1 (free) (poolside/laguna-xs-2.1:free) vs SpaceXAI: Grok 4.3 (batch) (x-ai/grok-4.3:batch). Simulate cache read multipliers, context cliffs, MAU bills, and P90 latency.
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.
SpaceXAI: Grok 4.3 (batch) (x-ai/grok-4.3:batch) 2026 Q4 Developer Promotion & Volume Credits
Official 2026 Q4 promotion for SpaceXAI: Grok 4.3 (batch): Activate ephemeral prefix caching to slash input costs by 50% (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 (free) (API ID: poolside/laguna-xs-2.1:free) vs SpaceXAI: Grok 4.3 (batch) (API ID: x-ai/grok-4.3:batch), 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). Poolside: Laguna XS 2.1 (free) 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 | Poolside: Laguna XS 2.1 (free) | SpaceXAI: Grok 4.3 (batch) | Verified Advantage |
|---|---|---|---|
| Official Vendor API ID | poolside/laguna-xs-2.1:free | x-ai/grok-4.3:batch | Pinned Snapshot IDs |
| Standard Input / Output (per 1M) | $0 / $0 | $1 / $2 | Poolside: Laguna XS 2.1 (free) |
| Cache Read Price (per 1M) | $0/1M (50% Off) | $0.5/1M (50% Off) | Poolside: Laguna XS 2.1 (free) |
| Context Window / Max Output | 256K In / 32K Out | 977K In / 879K Out | SpaceXAI: Grok 4.3 (batch) |
| P90 First-Token / Edge Latency | 280ms | 280ms | Poolside: Laguna XS 2.1 (free) (-0ms) |
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
Grok 4.3 is a reasoning model from SpaceXAI. It accepts text and image inputs with text output, and is suited for agentic workflows, instruction-following tasks, and applications r
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 (free) to SpaceXAI: Grok 4.3 (batch)
Grok 4.3 is a reasoning model from SpaceXAI. It accepts text and image inputs with text output, and is suited for agentic workflows, instruction-following tasks, and applications r Verified P90 latency of 280ms.