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Model comparison

Gemini 3.5 Flash-Lite vs Grok 4.5

Data verified

Head-to-head evidence from 19 shared benchmark results across 5 categories. Overall scores shown here use the public BenchAlign v5 ranking lane.

N/A
No comparison
76.72/100
0 category wins2 category wins

Public leaderboard positions: Gemini 3.5 Flash-Lite unranked (Not scored); Grok 4.5 #7 (Supported). Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.

Evidence parity. Gemini 3.5 Flash-Lite and Grok 4.5 share 19 comparable benchmark results. 2 of 8 categories are comparable. 2 results are unique to Gemini 3.5 Flash-Lite; 9 to Grok 4.5.

Updated July 21, 2026
Shared results
19
Gemini 3.5 Flash-Lite only
2
Grok 4.5 only
9
Comparable categories
2 / 8

Treat this as a split decision. Gemini 3.5 Flash-Lite makes more sense if you want the cheaper token bill or you need the larger 1M context window; Grok 4.5 is the better fit if agentic is the priority.

Confidence note. This is a partial-evidence comparison with 19 shared benchmark results across 5 evidence categories; 2 of 8 categories currently have scoreable aggregates for both models. Treat the verdict as directional until coverage is more balanced.

Why this result

Gemini 3.5 Flash-Lite and Grok 4.5 finish on the same BenchAlign overall score, so this is less about a single winner and more about where the edge shows up. The BenchAlign headline says tie; the benchmark table is where the real choice happens.

Grok 4.5 is also the more expensive model on tokens at $2.00 input / $6.00 output per 1M tokens, versus $0.30 input / $2.50 output per 1M tokens for Gemini 3.5 Flash-Lite. That is roughly 2.4x on output cost alone. Gemini 3.5 Flash-Lite gives you the larger context window at 1M, compared with 500K for Grok 4.5.

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 Grok 4.5
CategoryGemini 3.5 Flash-LiteΔGrok 4.5
AgenticGemini 3.5 Flash-Lite63.4Margin→ 19.9Grok 4.583.3
CodingGemini 3.5 Flash-Lite54.2Margin→ 10.5Grok 4.564.7
ReasoningGemini 3.5 Flash-Lite72.2MarginNo overlapGrok 4.5Not measured

Decisive benchmark drivers

The largest measured benchmark gaps in this matchup, with exact reported values.

More
A · Gemini 3.5 Flash-LiteB · Grok 4.5

  1. Terminal-Bench 2.0

    Agentic
    Source ↗
    A 54%B 83.3%
    Winner: Grok 4.5Δ 29.3
    Terminal-Bench 2.0: Gemini 3.5 Flash-Lite scored 54%; Grok 4.5 scored 83.3%. Grok 4.5 wins this benchmark.

  2. SWE-bench Pro

    Coding
    Source ↗
    A 54.2%B 64.7%
    Winner: Grok 4.5Δ 10.5
    SWE-bench Pro: Gemini 3.5 Flash-Lite scored 54.2%; Grok 4.5 scored 64.7%. Grok 4.5 wins this benchmark.

Operational comparison

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

MetricGemini 3.5 Flash-LiteGrok 4.5Comparison
Input / output priceUSD per 1M tokensGemini 3.5 Flash-Lite$0.3 input / $2.5 outputGrok 4.5$2 input / $6 outputGemini 3.5 Flash-Lite has the lower combined listed price.
Generation speedtokens per secondGemini 3.5 Flash-LiteNot availableGrok 4.5Not availableA complete speed comparison is not available.
First-answer latencyseconds to first tokenGemini 3.5 Flash-LiteNot availableGrok 4.5Not availableA complete latency comparison is not available.
Context windowmaximum listed tokensGemini 3.5 Flash-Lite1MGrok 4.5500KGemini 3.5 Flash-Lite lists the larger context window.

Benchmark Deep Dive

AgenticGrok 4.5 wins
BenchmarkGemini 3.5 Flash-LiteGrok 4.5Result
Terminal-Bench 2.0Source 54%83.3%Grok 4.5 leads
OSWorld-VerifiedSource 74%—Not comparable
GDPval-AASource 11401535Grok 4.5 leads
AA Agentic IndexSource 26.8%45.7%Grok 4.5 leads
GDPval-AASource 32.0%51.7%Grok 4.5 leads
AA BriefcaseSource 6341323Grok 4.5 leads
AA Tau3 BankingSource 16.5%32.6%Grok 4.5 leads
deepSweSource —53%Not comparable
AA AutomationBenchSource —51.4%Not comparable
AA EnterpriseOps-GymSource —40.8%Not comparable
AA Harvey LABSource —92.4%Not comparable
aaTerminalBench21Source —81.6%Not comparable
CodingGrok 4.5 wins
BenchmarkGemini 3.5 Flash-LiteGrok 4.5Result
Terminal-Bench 2.0Source 54.0%83.3%Grok 4.5 leads
SWE-bench ProSource 54.2%64.7%Grok 4.5 leads
AA Coding IndexSource 49.3%72.5%Grok 4.5 leads
AA-SciCodeSource 40.9%54.1%Grok 4.5 leads
SWE MultilingualSource —78%Not comparable
cursorBench32Source —66.7%Not comparable
VulcanBench v3Source —91.3%Not comparable
Reasoning
BenchmarkGemini 3.5 Flash-LiteGrok 4.5Result
MRCRv2Source 72.2%—Not comparable
AA-LCRSource 62.0%67.7%Grok 4.5 leads
CritPtSource 0.0%15.4%Grok 4.5 leads
Knowledge
BenchmarkGemini 3.5 Flash-LiteGrok 4.5Result
Artificial Analysis Intelligence IndexSource 36.5%53.8%Grok 4.5 leads
AA-GPQA DiamondSource 83.8%93.1%Grok 4.5 leads
AA-HLESource 17.5%40.3%Grok 4.5 leads
AA-Omniscience IndexSource 6.9%26.4%Grok 4.5 leads
AA-Omniscience AccuracySource 30.3%52.1%Grok 4.5 leads
AA-Omniscience Hallucination RateSource 33.5%53.5%Gemini 3.5 Flash-Lite leads
Multimodal
BenchmarkGemini 3.5 Flash-LiteGrok 4.5Result
AA-MMMU-ProSource 79.0%80.4%Grok 4.5 leads
Design Arena WebsiteSource —1325Not comparable
Frequently Asked Questions (3)

Which is better, Gemini 3.5 Flash-Lite or Grok 4.5?

Gemini 3.5 Flash-Lite and Grok 4.5 are tied on the BenchAlign overall score, so the right pick depends on which category matters most for your use case.

Which is better for coding, Gemini 3.5 Flash-Lite or Grok 4.5?

Grok 4.5 has the edge for coding in this comparison, averaging 64.7 versus 54.2. Inside this category, Terminal-Bench 2.0 is the benchmark that creates the most daylight between them.

Which is better for agentic tasks, Gemini 3.5 Flash-Lite or Grok 4.5?

Grok 4.5 has the edge for agentic tasks in this comparison, averaging 83.3 versus 63.4. Inside this category, AA Briefcase is the benchmark that creates the most daylight between them.

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Last updated: July 21, 2026

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