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Model comparison

Gemini 3.5 Flash-Lite vs GPT-OSS 120B

Data verified

Head-to-head evidence from 13 shared benchmark results across 4 categories. Overall scores shown here use the public BenchAlign v5 ranking lane.

N/A
No comparison
50.08/100
0 category wins0 category wins

Public leaderboard positions: Gemini 3.5 Flash-Lite unranked (Not scored); GPT-OSS 120B #116 (Supported). Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.

Evidence parity. Gemini 3.5 Flash-Lite and GPT-OSS 120B share 13 comparable benchmark results. 0 of 8 categories are comparable. 8 results are unique to Gemini 3.5 Flash-Lite; 13 to GPT-OSS 120B.

Updated July 21, 2026
Shared results
13
Gemini 3.5 Flash-Lite only
8
GPT-OSS 120B only
13
Comparable categories
0 / 8

Benchmark data for Gemini 3.5 Flash-Lite and GPT-OSS 120B is coming soon on BenchLM.

Confidence note. This is a partial-evidence comparison with 13 shared benchmark results across 4 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 3.5 Flash-Lite is priced at $0.30 input / $2.50 output per 1M tokens, versus $0.00 input / $0.00 output per 1M tokens for GPT-OSS 120B. Gemini 3.5 Flash-Lite has the larger context window at 1M, compared with 128K for GPT-OSS 120B.

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 3.5 Flash-Lite and GPT-OSS 120B
CategoryGemini 3.5 Flash-LiteΔGPT-OSS 120B
AgenticGemini 3.5 Flash-Lite63.4MarginNo overlapGPT-OSS 120BNot measured
CodingGemini 3.5 Flash-Lite54.2MarginNo overlapGPT-OSS 120BNot measured
ReasoningGemini 3.5 Flash-Lite72.2MarginNo overlapGPT-OSS 120BNot measured

Operational comparison

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

MetricGemini 3.5 Flash-LiteGPT-OSS 120BComparison
Input / output priceUSD per 1M tokensGemini 3.5 Flash-Lite$0.3 input / $2.5 outputGPT-OSS 120B$0 input / $0 outputGPT-OSS 120B has the lower combined listed price.
Generation speedtokens per secondGemini 3.5 Flash-LiteNot availableGPT-OSS 120B262 tok/sA complete speed comparison is not available.
First-answer latencyseconds to first tokenGemini 3.5 Flash-LiteNot availableGPT-OSS 120B0.79 sA complete latency comparison is not available.
Context windowmaximum listed tokensGemini 3.5 Flash-Lite1MGPT-OSS 120B128KGemini 3.5 Flash-Lite lists the larger context window.

Benchmark Deep Dive

Agentic
BenchmarkGemini 3.5 Flash-LiteGPT-OSS 120BResult
Terminal-Bench 2.0Source 54%—Not comparable
OSWorld-VerifiedSource 74%—Not comparable
GDPval-AASource 1140799Gemini 3.5 Flash-Lite leads
AA Agentic IndexSource 26.8%13.2%Gemini 3.5 Flash-Lite leads
GDPval-AASource 32.0%15.0%Gemini 3.5 Flash-Lite leads
AA BriefcaseSource 634—Not comparable
AA Tau3 BankingSource 16.5%—Not comparable
APEX-Agents-AASource —3.1%Not comparable
τ²-bench resultsSource —65.8%Not comparable
Gert LabsSource —29.61%Not comparable
AA EnterpriseOps-GymSource —25.5%Not comparable
AA ITBenchSource —5.6%Not comparable
Coding
BenchmarkGemini 3.5 Flash-LiteGPT-OSS 120BResult
Terminal-Bench 2.0Source 54.0%—Not comparable
SWE-bench ProSource 54.2%—Not comparable
AA Coding IndexSource 49.3%30.4%Gemini 3.5 Flash-Lite leads
AA-SciCodeSource 40.9%38.9%Gemini 3.5 Flash-Lite leads
React Native EvalsSource —71.6%Not comparable
AA LiveCodeBenchSource —87.8%Not comparable
Reasoning
BenchmarkGemini 3.5 Flash-LiteGPT-OSS 120BResult
MRCRv2Source 72.2%—Not comparable
AA-LCRSource 62.0%50.7%Gemini 3.5 Flash-Lite leads
CritPtSource 0.0%1.1%GPT-OSS 120B leads
Knowledge
BenchmarkGemini 3.5 Flash-LiteGPT-OSS 120BResult
Artificial Analysis Intelligence IndexSource 36.5%23.8%Gemini 3.5 Flash-Lite leads
AA-GPQA DiamondSource 83.8%78.2%Gemini 3.5 Flash-Lite leads
AA-HLESource 17.5%18.5%GPT-OSS 120B leads
AA-Omniscience IndexSource 6.9%-50.0%Gemini 3.5 Flash-Lite leads
AA-Omniscience AccuracySource 30.3%21.5%Gemini 3.5 Flash-Lite leads
AA-Omniscience Hallucination RateSource 33.5%91.2%Gemini 3.5 Flash-Lite leads
AA Openness IndexSource —38.9%Not comparable
AA MMLU-ProSource —80.8%Not comparable
Math
BenchmarkGemini 3.5 Flash-LiteGPT-OSS 120BResult
AA AIME 2025Source —93.4%Not comparable
Multilingual
BenchmarkGemini 3.5 Flash-LiteGPT-OSS 120BResult
AA Global-MMLU-LiteSource —82.8%Not comparable
Multimodal
BenchmarkGemini 3.5 Flash-LiteGPT-OSS 120BResult
AA-MMMU-ProSource 79.0%—Not comparable
Design Arena WebsiteSource —998Not comparable
Inst. Following
BenchmarkGemini 3.5 Flash-LiteGPT-OSS 120BResult
AA-IFBenchSource —69.0%Not comparable
Frequently Asked Questions (3)

Can I compare Gemini 3.5 Flash-Lite and GPT-OSS 120B 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 3.5 Flash-Lite and GPT-OSS 120B today?

Gemini 3.5 Flash-Lite: $0.30 input / $2.50 output per 1M tokens GPT-OSS 120B: $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 21, 2026

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