GLM-5.3 vs Laguna XS 2.1
Comparing GLM-5.3 and Laguna XS 2.1 across benchmarks, pricing, and capabilities.
Zhipu AI · Poolside · Updated for 2026
Which is better?
GLM-5.3 and Laguna XS 2.1 trade strengths across price, capabilities, and technical limits. The better choice depends on the workload.
On price, Laguna XS 2.1 is roughly 17.2x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.
GLM-5.3 also accepts a larger context window (1,000,000 input tokens), making it the stronger choice for long documents and large codebases.
Based on current benchmark, pricing, and model metadata for 2026.
Choose GLM-5.3
- you process long inputs — it offers a 1,000,000 token context window
- you want the most recent training data — it shipped Aug 2026
Choose Laguna XS 2.1
- cost matters — it's about 17.2x cheaper per token
- you need open weights you can self-host or fine-tune
At a glance
The differences that matter most.
Performance Benchmarks
Comparative analysis across standard metrics
GLM-5.3 and Laguna XS 2.1don't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.
Arena Performance
Playground indexes and blind preference scores
Pricing Analysis
Price comparison per million tokens
For input processing, GLM-5.3 ($1.40/1M tokens) is 14.0x more expensive than Laguna XS 2.1 ($0.10/1M tokens).
For output processing, GLM-5.3 ($4.40/1M tokens) is 22.0x more expensive than Laguna XS 2.1 ($0.20/1M tokens).
In conclusion, GLM-5.3 is more expensive than Laguna XS 2.1.*
* Using a 3:1 ratio of input to output tokens
Model Size
Parameter count comparison
GLM-5.3 has 720.0B more parameters than Laguna XS 2.1, making it 2181.8% larger.
Context Window
Maximum input and output token capacity
GLM-5.3 accepts 1,000,000 input tokens compared to Laguna XS 2.1's 262,144 tokens. Only GLM-5.3 specifies output context (128,000 tokens).
Release Timeline
When each model was launched
GLM-5.3 was released on 2026-08-14, while Laguna XS 2.1 was released on 2026-07-02.
GLM-5.3 is 1 month newer than Laguna XS 2.1.
Aug 14, 2026
1 weeks ago
1mo newerJul 2, 2026
1 months ago
Knowledge Cutoff
When training data ends
Neither model specifies a knowledge cutoff date.
Unable to compare the recency of their training data.
Provider Availability
GLM-5.3 is available from ZAI. Laguna XS 2.1 is available from Poolside.
GLM-5.3
Laguna XS 2.1
Outputs Comparison
Judge for yourself.
Run your own prompts against GLM-5.3 and Laguna XS 2.1 side-by-side, then vote on the output you prefer.
FAQ
Common questions about GLM-5.3 vs Laguna XS 2.1.