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Model comparison

Laguna S 2.1 vs Qwen3.5 Plus

Data verified

Head-to-head evidence from 0 shared benchmark results across 0 categories. Overall scores shown here use the public BenchAlign v5 ranking lane.

No sourced benchmark result is currently shared by both models. This page therefore compares only the available metadata, pricing, and runtime rows; it does not name a quality winner.
Poolside
N/A
No comparison
47.2/100
0 category wins0 category wins

Public leaderboard positions: Laguna S 2.1 unranked (Not scored); Qwen3.5 Plus #138 (Estimated). Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.

Evidence parity. Laguna S 2.1 and Qwen3.5 Plus share 0 comparable benchmark results. 0 of 8 categories are comparable. 6 results are unique to Laguna S 2.1; 4 to Qwen3.5 Plus.

Updated July 21, 2026
Shared results
0
Laguna S 2.1 only
6
Qwen3.5 Plus only
4
Comparable categories
0 / 8

Benchmark data for Laguna S 2.1 and Qwen3.5 Plus is coming soon on BenchLM.

Confidence note. This is a partial-evidence comparison with 0 shared benchmark results across 0 evidence categories; 0 of 8 categories currently have scoreable aggregates for both models. Treat the verdict as directional until coverage is more balanced.

Why this result

BenchLM has partial data for these models, but not enough overlapping benchmark coverage to produce a fair score-level comparison yet.

Qwen3.5 Plus is priced at $0.40 input / $2.40 output per 1M tokens, versus $0.10 input / $0.20 output per 1M tokens for Laguna S 2.1.

Operational comparison

Runtime and commercial metrics are compared only when both models have a complete sourced value.

MetricLaguna S 2.1Qwen3.5 PlusComparison
Input / output priceUSD per 1M tokensLaguna S 2.1$0.1 input / $0.2 outputQwen3.5 Plus$0.4 input / $2.4 outputLaguna S 2.1 has the lower combined listed price.
Generation speedtokens per secondLaguna S 2.1Not availableQwen3.5 PlusNot availableA complete speed comparison is not available.
First-answer latencyseconds to first tokenLaguna S 2.1Not availableQwen3.5 PlusNot availableA complete latency comparison is not available.
Context windowmaximum listed tokensLaguna S 2.11MQwen3.5 Plus1MListed context windows are equal.

Benchmark Deep Dive

Agentic
BenchmarkLaguna S 2.1Qwen3.5 PlusResult
Terminal-Bench 2.0Source 70.2%Not comparable
Toolathlon-VerifiedSource 49.7%Not comparable
JobBenchSource 18.5%Not comparable
Coding
BenchmarkLaguna S 2.1Qwen3.5 PlusResult
Terminal-Bench 2.0Source 70.2%Not comparable
SWE MultilingualSource 78.5%Not comparable
SWE-bench ProSource 59.4%Not comparable
deepSweSource 40.4%Not comparable
Vibe Code BenchSource 15.74%Not comparable
Math
BenchmarkLaguna S 2.1Qwen3.5 PlusResult
FrontierMath v2 (Tiers 1-3)Source 21.034%Not comparable
FrontierMath v2 (Tier 4)Source 2.083%Not comparable
Frequently Asked Questions (3)

Can I compare Laguna S 2.1 and Qwen3.5 Plus on BenchLM yet?

Not fully yet. BenchLM is tracking both models, but the sourced benchmark breakdown for this comparison is still coming soon.

Why does this comparison show “coming soon”?

BenchLM only shows category winners and benchmark-level calls when we have sourced results that can be compared fairly. For these models, the public benchmark coverage is not complete enough yet.

What data is available for Laguna S 2.1 and Qwen3.5 Plus today?

Laguna S 2.1: $0.10 input / $0.20 output per 1M tokens Qwen3.5 Plus: $0.40 input / $2.40 output per 1M tokens Both model pages still include creator, context window, reasoning mode, and other metadata while benchmark coverage fills in.

Related Comparisons

Last updated: July 21, 2026

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