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Model comparison

Llama 4 Behemoth vs Mellum2-12B-A2.5B-Instruct

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.
N/A
No comparison
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0 category wins0 category wins

Public leaderboard positions: Llama 4 Behemoth #176 (Estimated); Mellum2-12B-A2.5B-Instruct unranked (Not scored). Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.

Evidence parity. Llama 4 Behemoth and Mellum2-12B-A2.5B-Instruct share 0 comparable benchmark results. 0 of 8 categories are comparable. 0 results are unique to Llama 4 Behemoth; 5 to Mellum2-12B-A2.5B-Instruct.

Updated July 23, 2026
Shared results
0
Llama 4 Behemoth only
0
Mellum2-12B-A2.5B-Instruct only
5
Comparable categories
0 / 8

Benchmark data for Llama 4 Behemoth and Mellum2-12B-A2.5B-Instruct 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 does not have sourced benchmark coverage for Llama 4 Behemoth yet. This comparison is currently limited to metadata such as context window, reasoning mode, and pricing where available.

Mellum2-12B-A2.5B-Instruct has the larger context window at 128K, compared with 32K for Llama 4 Behemoth.

Operational comparison

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

MetricLlama 4 BehemothMellum2-12B-A2.5B-InstructComparison
Input / output priceUSD per 1M tokensLlama 4 Behemoth$0 input / $0 outputMellum2-12B-A2.5B-InstructNot availableA complete price comparison is not available.
Generation speedtokens per secondLlama 4 BehemothNot availableMellum2-12B-A2.5B-InstructNot availableA complete speed comparison is not available.
First-answer latencyseconds to first tokenLlama 4 BehemothNot availableMellum2-12B-A2.5B-InstructNot availableA complete latency comparison is not available.
Context windowmaximum listed tokensLlama 4 Behemoth32KMellum2-12B-A2.5B-Instruct128KMellum2-12B-A2.5B-Instruct lists the larger context window.

Benchmark Deep Dive

Agentic
BenchmarkLlama 4 BehemothMellum2-12B-A2.5B-InstructResult
BFCL v4Source —44.2%Not comparable
Knowledge
BenchmarkLlama 4 BehemothMellum2-12B-A2.5B-InstructResult
MMLU-ReduxSource —78.1%Not comparable
GPQASource —40.9%Not comparable
GPQA-DSource —40.9%Not comparable
Inst. Following
BenchmarkLlama 4 BehemothMellum2-12B-A2.5B-InstructResult
IFEvalSource —75.8%Not comparable
Frequently Asked Questions (3)

Can I compare Llama 4 Behemoth and Mellum2-12B-A2.5B-Instruct 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 Llama 4 Behemoth and Mellum2-12B-A2.5B-Instruct today?

Llama 4 Behemoth: $0.00 input / $0.00 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 23, 2026

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