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Model comparison

Laguna S 2.1 vs Mellum2-12B-A2.5B-Thinking

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.
Laguna S 2.1
Poolside
N/A
No comparison
N/A
0 category wins0 category wins

Evidence parity. Laguna S 2.1 and Mellum2-12B-A2.5B-Thinking share 0 comparable benchmark results. 0 of 8 categories are comparable. 6 results are unique to Laguna S 2.1; 5 to Mellum2-12B-A2.5B-Thinking.

Updated July 21, 2026
Shared results
0
Laguna S 2.1 only
6
Mellum2-12B-A2.5B-Thinking only
5
Comparable categories
0 / 8

Benchmark data for Laguna S 2.1 and Mellum2-12B-A2.5B-Thinking 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.

Laguna S 2.1 has the larger context window at 1M, compared with 128K for Mellum2-12B-A2.5B-Thinking.

Operational comparison

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

MetricLaguna S 2.1Mellum2-12B-A2.5B-ThinkingComparison
Input / output priceUSD per 1M tokensLaguna S 2.1$0.1 input / $0.2 outputMellum2-12B-A2.5B-ThinkingNot availableA complete price comparison is not available.
Generation speedtokens per secondLaguna S 2.1Not availableMellum2-12B-A2.5B-ThinkingNot availableA complete speed comparison is not available.
First-answer latencyseconds to first tokenLaguna S 2.1Not availableMellum2-12B-A2.5B-ThinkingNot availableA complete latency comparison is not available.
Context windowmaximum listed tokensLaguna S 2.11MMellum2-12B-A2.5B-Thinking128KLaguna S 2.1 lists the larger context window.

Benchmark Deep Dive

Agentic
BenchmarkLaguna S 2.1Mellum2-12B-A2.5B-ThinkingResult
Terminal-Bench 2.0Source 70.2%—Not comparable
Toolathlon-VerifiedSource 49.7%—Not comparable
BFCL v4Source —45.6%Not comparable
Coding
BenchmarkLaguna S 2.1Mellum2-12B-A2.5B-ThinkingResult
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
Knowledge
BenchmarkLaguna S 2.1Mellum2-12B-A2.5B-ThinkingResult
MMLU-ReduxSource —86.2%Not comparable
GPQASource —57.6%Not comparable
GPQA-DSource —57.6%Not comparable
Inst. Following
BenchmarkLaguna S 2.1Mellum2-12B-A2.5B-ThinkingResult
IFEvalSource —76.5%Not comparable
Frequently Asked Questions (3)

Can I compare Laguna S 2.1 and Mellum2-12B-A2.5B-Thinking 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 Mellum2-12B-A2.5B-Thinking today?

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

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Last updated: July 21, 2026

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