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Head-to-head comparison

LongCat 2.0 vs Laguna XS 2.1

LongCat 2.0 (Meituan) and Laguna XS 2.1 (Poolside) 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 3 September 2026

As of 3 September 2026, LongCat 2.0 holds the stronger ModelCap Index position (#54 vs #208); Laguna XS 2.1 is 10× cheaper per output token ($0.12/1M vs $1.20/1M); LongCat 2.0 offers the longer context window (1M vs 262K tokens); and LongCat 2.0 ships open weights.

Which should you choose?

Choose LongCat 2.0 if…

  • you want the stronger overall ModelCap Index position — #54 against #208 (47.2 vs 2.0 points).
  • you need the longer context window — 1M tokens against 262K.
  • you want to self-host: LongCat 2.0 ships open weights while Laguna XS 2.1 is restricted license.
  • you want the more recently listed model — LongCat 2.0 was listed 20 July 2026, Laguna XS 2.1 2 July 2026.

Choose Laguna XS 2.1 if…

  • API cost matters — $0.12/1M output tokens against $1.20/1M, about 10× cheaper.
  • your workload is prompt-heavy — input tokens cost $0.06/1M against $0.30/1M.

LongCat 2.0 vs Laguna XS 2.1: specs, pricing and context

Specification comparison of LongCat 2.0 and Laguna XS 2.1
FieldLongCat 2.0MeituanLaguna XS 2.1Poolside
ModelCap Index position#54#208
Index score47.22.0
EvidenceMeasuredEstimated
Input price / 1M tokens$0.30$0.06
Output price / 1M tokens$1.20$0.12
Context window1M tokens262K tokens
Max output tokens262K33K
API providers listed11
Weight accessOpen weightsRestricted license
Input modalitiesTextText
First listed20 July 20262 July 2026
PublisherMeituanPoolside

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

Benchmark scores: LongCat 2.0 vs Laguna XS 2.1

Public benchmark boards where LongCat 2.0 or Laguna XS 2.1 has a published result
BoardLongCat 2.0Laguna XS 2.1Leads
AA Intelligence IndexArtificial Analysis34.0intelligence-index—Only one result
AA Terminal-Bench 2.1Artificial Analysis50.2%terminal-bench-2.1—Only one result
AA Humanity's Last ExamArtificial Analysis33.7%humanitys-last-exam—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.

LongCat 2.0 vs Laguna XS 2.1: common questions

Is LongCat 2.0 better than Laguna XS 2.1?

LongCat 2.0 ranks higher on the ModelCap Index as of 3 September 2026: #54 against #208. 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 LongCat 2.0 cheaper than Laguna XS 2.1?

Laguna XS 2.1 is cheaper on output tokens: $0.12/1M against $1.20/1M. Input tokens are $0.30/1M for LongCat 2.0 and $0.06/1M for Laguna XS 2.1. Prices are the lowest listed API offer ModelCap observed, in USD per million tokens.

Which has the bigger context window, LongCat 2.0 or Laguna XS 2.1?

LongCat 2.0 has the larger context window: 1M tokens against 262K.

Which is better for coding, LongCat 2.0 or Laguna XS 2.1?

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 LongCat 2.0 and Laguna XS 2.1 open-weight models?

LongCat 2.0: Open weights. Laguna XS 2.1: Restricted license. 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 LongCat 2.0 and Laguna XS 2.1?

ModelCap currently lists 1 API provider for LongCat 2.0 and 1 for Laguna XS 2.1, from the OpenRouter catalogue snapshot the site serves; each model page lists the providers and their prices.

How current is this LongCat 2.0 vs Laguna XS 2.1 comparison?

Every figure comes from the sealed ModelCap dataset published 3 September 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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