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Model comparison

Gemini 2.5 Pro vs Llama 3.1 405B

Data verified

Head-to-head evidence from 11 shared benchmark results across 5 categories. Overall scores shown here use the public BenchAlign v5 ranking lane.

57.25/100
Margin
5.5pts
← winning
51.71/100
0 category wins0 category wins

Public leaderboard positions: Gemini 2.5 Pro #70 (Supported); Llama 3.1 405B #102 (Estimated). Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.

Evidence parity. Gemini 2.5 Pro and Llama 3.1 405B share 11 comparable benchmark results. 0 of 8 categories are comparable. 13 results are unique to Gemini 2.5 Pro; 0 to Llama 3.1 405B.

Updated July 22, 2026
Shared results
11
Gemini 2.5 Pro only
13
Llama 3.1 405B only
0
Comparable categories
0 / 8

Benchmark data for Gemini 2.5 Pro and Llama 3.1 405B is coming soon on BenchLM.

Confidence note. This is a partial-evidence comparison with 11 shared benchmark results across 5 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.

Gemini 2.5 Pro is priced at $1.25 input / $10.00 output per 1M tokens, versus $0.00 input / $0.00 output per 1M tokens for Llama 3.1 405B. Gemini 2.5 Pro has the larger context window at 1M, compared with 128K for Llama 3.1 405B.

Category breakdown

Exact category averages are shown below. Not measured means BenchLM does not have enough sourced public coverage for that model and category.

Category scores and score margins for Gemini 2.5 Pro and Llama 3.1 405B
CategoryGemini 2.5 ProΔLlama 3.1 405B
CodingGemini 2.5 Pro63.8MarginNo overlapLlama 3.1 405BNot measured
KnowledgeGemini 2.5 Pro27.4MarginNo overlapLlama 3.1 405BNot measured
MathGemini 2.5 Pro11.6MarginNo overlapLlama 3.1 405BNot measured

Operational comparison

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

MetricGemini 2.5 ProLlama 3.1 405BComparison
Input / output priceUSD per 1M tokensGemini 2.5 Pro$1.25 input / $10 outputLlama 3.1 405B$0 input / $0 outputLlama 3.1 405B has the lower combined listed price.
Generation speedtokens per secondGemini 2.5 Pro117 tok/sLlama 3.1 405B29 tok/sGemini 2.5 Pro has the higher measured throughput.
First-answer latencyseconds to first tokenGemini 2.5 Pro21.19 sLlama 3.1 405B2.19 sLlama 3.1 405B reaches the first token sooner.
Context windowmaximum listed tokensGemini 2.5 Pro1MLlama 3.1 405B128KGemini 2.5 Pro lists the larger context window.

Benchmark Deep Dive

Agentic
BenchmarkGemini 2.5 ProLlama 3.1 405BResult
AA Agentic IndexSource 7.1%—Not comparable
τ²-bench resultsSource 54.1%19%Gemini 2.5 Pro leads
Gert LabsSource 42.01%—Not comparable
GDPval-AASource 8.3%—Not comparable
GDPval-AASource 665—Not comparable
Coding
BenchmarkGemini 2.5 ProLlama 3.1 405BResult
SWE-bench VerifiedSource 63.8%—Not comparable
Vibe Code BenchSource 0.40%—Not comparable
AA Coding IndexSource 33.3%—Not comparable
AA-SciCodeSource 42.8%29.9%Gemini 2.5 Pro leads
Reasoning
BenchmarkGemini 2.5 ProLlama 3.1 405BResult
AA-LCRSource 66.0%24.3%Gemini 2.5 Pro leads
CritPtSource 2.6%0.0%Gemini 2.5 Pro leads
Knowledge
BenchmarkGemini 2.5 ProLlama 3.1 405BResult
GPQASource 83%—Not comparable
HLESource 18.8%—Not comparable
Artificial Analysis Intelligence IndexSource 25.8%8.5%Gemini 2.5 Pro leads
AA-GPQA DiamondSource 84.4%51.5%Gemini 2.5 Pro leads
AA-HLESource 21.1%4.2%Gemini 2.5 Pro leads
AA-Omniscience IndexSource -14.3%-17.3%Gemini 2.5 Pro leads
AA-Omniscience AccuracySource 39.0%22.3%Gemini 2.5 Pro leads
AA-Omniscience Hallucination RateSource 87.4%51.0%Llama 3.1 405B leads
Math
BenchmarkGemini 2.5 ProLlama 3.1 405BResult
FrontierMath v2 (Tiers 1-3)Source 14.138%—Not comparable
FrontierMath v2 (Tier 4)Source 4.167%—Not comparable
Multimodal
BenchmarkGemini 2.5 ProLlama 3.1 405BResult
AA-MMMU-ProSource 74.9%—Not comparable
Design Arena WebsiteSource 1197—Not comparable
Inst. Following
BenchmarkGemini 2.5 ProLlama 3.1 405BResult
AA-IFBenchSource 48.7%39.0%Gemini 2.5 Pro leads
Frequently Asked Questions (3)

Can I compare Gemini 2.5 Pro and Llama 3.1 405B 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 Gemini 2.5 Pro and Llama 3.1 405B today?

Gemini 2.5 Pro: $1.25 input / $10.00 output per 1M tokens Llama 3.1 405B: $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 22, 2026

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