Kimi K2-Thinking-0905 vs Laguna XS 2.1
Kimi K2-Thinking-0905 leads the LLM Stats Score 36.0 to 24.4. Laguna XS 2.1 is 6.8x cheaper per token.
Moonshot AI · Poolside · Updated for 2026
Which is better?
Kimi K2-Thinking-0905 leads the overall LLM Stats Score 36.0 to 24.4, ranking #85 overall.
The models split the 2 individual benchmarks reported for both models evenly.
On price, Laguna XS 2.1 is roughly 6.8x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.
Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.
Choose Kimi K2-Thinking-0905
- overall performance matters — it scores 36.0 and ranks #85 on LLM Stats
- your work emphasizes reasoning and agents — it leads those capability indexes
Choose Laguna XS 2.1
- cost matters — it's about 6.8x cheaper per token
- you want the most recent training data — it shipped Jul 2026
At a glance
The differences that matter most.
Individual benchmarks
21 reported for Kimi K2-Thinking-0905 · 4 for Laguna XS 2.1
Kimi K2-Thinking-0905 outperforms in 1 benchmarks (SWE-Bench Verified), while Laguna XS 2.1 is better at 1 benchmark (SWE-bench Multilingual).
Both models are evenly matched across the benchmarks.
Human preference
Blind head-to-head votes and playground preference scores
Pricing Analysis
Price comparison per million tokens
For input processing, Kimi K2-Thinking-0905 ($0.47/1M tokens) is 4.7x more expensive than Laguna XS 2.1 ($0.10/1M tokens).
For output processing, Kimi K2-Thinking-0905 ($2.00/1M tokens) is 10.0x more expensive than Laguna XS 2.1 ($0.20/1M tokens).
In conclusion, Kimi K2-Thinking-0905 is more expensive than Laguna XS 2.1.*
* Using a 3:1 ratio of input to output tokens
Model Size
Parameter count comparison
Kimi K2-Thinking-0905 has 967.0B more parameters than Laguna XS 2.1, making it 2930.3% larger.
Context Window
Maximum input and output token capacity
Both models have the same input context window of 262,144 tokens. Only Kimi K2-Thinking-0905 specifies output context (262,144 tokens).
License
Usage and distribution terms
Kimi K2-Thinking-0905 is licensed under MIT, while Laguna XS 2.1 uses OpenMDW License v1.1.
License differences may affect how you can use these models in commercial or open-source projects.
MIT
Open weights
OpenMDW License v1.1
Open weights
Release Timeline
When each model was launched
Kimi K2-Thinking-0905 was released on 2025-09-05, while Laguna XS 2.1 was released on 2026-07-02.
Laguna XS 2.1 is 10 months newer than Kimi K2-Thinking-0905.
Sep 5, 2025
1.0 years ago
Jul 2, 2026
2 months ago
10mo newerKnowledge Cutoff
When training data ends
Neither model specifies a knowledge cutoff date.
Unable to compare the recency of their training data.
Provider Availability
Kimi K2-Thinking-0905 is available from DeepInfra, Novita, Fireworks. Laguna XS 2.1 is available from Poolside.
Kimi K2-Thinking-0905
Laguna XS 2.1
Outputs Comparison
Judge for yourself.
Run your own prompts against Kimi K2-Thinking-0905 and Laguna XS 2.1 side-by-side, then vote on the output you prefer.
FAQ
Common questions about Kimi K2-Thinking-0905 vs Laguna XS 2.1.