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Head-to-head comparison

Laguna XS 2.1 vs Grok Build 0.1

Laguna XS 2.1 (Poolside) and Grok Build 0.1 (xAI) compared on the ModelCap Index, API price, context window, provider availability, weight access and every public benchmark board they share. Figures are the same ones shown on the live rankings; nothing here is a hidden score.

Snapshot as of 18 August 2026

As of 18 August 2026, Grok Build 0.1 holds the stronger ModelCap Index position (#205 vs #207); Laguna XS 2.1 is 16.7× cheaper per output token ($0.12/1M vs $2.00/1M); and Laguna XS 2.1 offers the longer context window (262K vs 256K tokens).

Which should you choose?

Choose Laguna XS 2.1 if…

  • API cost matters — $0.12/1M output tokens against $2.00/1M, about 16.7× cheaper.
  • your workload is prompt-heavy — input tokens cost $0.06/1M against $1.00/1M.
  • you need the longer context window — 262K tokens against 256K.
  • you want the more recently listed model — Laguna XS 2.1 was listed 2 July 2026, Grok Build 0.1 20 May 2026.

Choose Grok Build 0.1 if…

  • you want the stronger overall ModelCap Index position — #205 against #207 (7.3 vs 4.7 points).

Laguna XS 2.1 vs Grok Build 0.1: specs, pricing and context

Specification comparison of Laguna XS 2.1 and Grok Build 0.1
FieldLaguna XS 2.1PoolsideGrok Build 0.1xAI
ModelCap Index position#207#205
Index score4.77.3
EvidenceEstimatedMeasured
Input price / 1M tokens$0.06$1.00
Output price / 1M tokens$0.12$2.00
Context window262K tokens256K tokens
Max output tokens33K—
API providers listed11
Weight accessRestricted licenseAPI only
Input modalitiesTextText, Image, File
First listed2 July 202620 May 2026
PublisherPoolsidexAI

Evidence: placed against measured peers on publisher-reported benchmarks, discounted for self-report optimism · 1 public benchmark observation across 1 board. Prices are the lowest listed API offer per million tokens observed on the OpenRouter catalogue.

Benchmark scores: Laguna XS 2.1 vs Grok Build 0.1

Public benchmark boards where Laguna XS 2.1 or Grok Build 0.1 has a published result
BoardLaguna XS 2.1Grok Build 0.1Leads
LMArena AgentLMArena—-9.1%-10.0%–-8.2%Only one result

Scores are the sources' own published figures for each model's best evaluated configuration; ModelCap never re-runs a benchmark.

Want a different pairing? Open the interactive comparison tool to swap either model for any current ranked language model.

Laguna XS 2.1 vs Grok Build 0.1: common questions

Is Laguna XS 2.1 better than Grok Build 0.1?

Grok Build 0.1 ranks higher on the ModelCap Index as of 18 August 2026: #205 against #207. That is a capability ranking built from public benchmark evidence with published uncertainty; whether it is "better" for you also depends on price, context and where you can run it.

Is Laguna XS 2.1 cheaper than Grok Build 0.1?

Laguna XS 2.1 is cheaper on output tokens: $0.12/1M against $2.00/1M. Input tokens are $0.06/1M for Laguna XS 2.1 and $1.00/1M for Grok Build 0.1. Prices are the lowest listed API offer ModelCap observed, in USD per million tokens.

Which has the bigger context window, Laguna XS 2.1 or Grok Build 0.1?

Laguna XS 2.1 has the larger context window: 262K tokens against 256K.

Which is better for coding, Laguna XS 2.1 or Grok Build 0.1?

The two models do not share a coding benchmark board on ModelCap yet, so no head-to-head coding score is published; the ModelCap Index position is the closest overall signal.

Are Laguna XS 2.1 and Grok Build 0.1 open-weight models?

Laguna XS 2.1: Restricted license. Grok Build 0.1: API only. Open weights mean the checkpoint can be downloaded and self-hosted under its licence; API-only models are available solely through hosted endpoints.

Where can I run Laguna XS 2.1 and Grok Build 0.1?

ModelCap currently lists 1 API provider for Laguna XS 2.1 and 1 for Grok Build 0.1, from the OpenRouter catalogue snapshot the site serves; each model page lists the providers and their prices.

How current is this Laguna XS 2.1 vs Grok Build 0.1 comparison?

Every figure comes from the sealed ModelCap dataset published 18 August 2026; the page re-renders within a minute of each data refresh, and the ModelCap Index positions are the same ones shown on the live rankings.

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