💰 Unit Cost Winner Gemini 3.5 Flash-Lite $0.075/1M in · $0.30/1M out
⚡ Latency & Speed Winner Gemini 3.5 Flash-Lite 78ms TTFT · 265 tok/s
💻 Coding (SWE) Winner Gemini 4 Argon 84.5% SWE-bench · 96.3% HumanEval
🧠 STEM Reasoning Winner Gemini 4 Argon 93.8% GPQA · 98.2% MATH-500

Which model is better: Gemini 3.5 Flash-Lite or Gemini 4 Argon?

Gemini 3.5 Flash-Lite is 96.2% cheaper for input tokens ($0.07 vs. $2.00 per 1M tokens) and $0.30 vs. $10.00 for output tokens (26.7x cost advantage). In terms of operational performance, Gemini 3.5 Flash-Lite delivers lower response latency at 78ms TTFT (772ms faster than Gemini 4 Argon) with 265 vs. 115 tok/s throughput. Gemini 4 Argon leads coding evaluations at 84.5% SWE-bench Verified vs. 55.4% for Gemini 3.5 Flash-Lite and 93.8% vs. 68.4% on GPQA Diamond.
Verified daily via automated API latency tests and official documentation.

Verified Performance & Unit Economics Delta (12 Dimensions)

Daily synchronized metrics across token pricing, prompt cache economics, latency, throughput, and 5 capability benchmarks.

Metric / Dimension Gemini 3.5 Flash-Lite Gemini 4 Argon Net Delta / Advantage
Input Cost / 1M Tokens $0.07 $2.00 Gemini 3.5 Flash-Lite is 26.7x cheaper
Output Cost / 1M Tokens $0.30 $10.00 Gemini 3.5 Flash-Lite (97.0% lower)
Prompt Cache Read / 1M $0.015 $0.100 Gemini 3.5 Flash-Lite is 6.7x cheaper
Prompt Cache Write / 1M $0.07 $0.50 Gemini 3.5 Flash-Lite is 6.7x cheaper
Context Window (Max Output) 1,049k (33k out) 1,024k (1000k out) Gemini 3.5 Flash-Lite (1.0x larger context)
Avg TTFT Response Latency 78ms 850ms Gemini 3.5 Flash-Lite (772ms faster)
Generation Speed (Throughput) 265 tok/s 115 tok/s Gemini 3.5 Flash-Lite (+150 tok/s faster)
SWE-bench Verified (Coding) 55.4% 84.5% Gemini 4 Argon (+29.1% lead)
GPQA Diamond (PhD STEM) 68.4% 93.8% Gemini 4 Argon (+25.4% lead)
MMLU-Pro (Multi-Discipline) 80.1% 91.4% Gemini 4 Argon (+11.3% lead)
MATH-500 (Quantitative Logic) 90.2% 98.2% Gemini 4 Argon (+8.0% lead)
Inference Value Score (IVR) 81.5 / 100 62.6 / 100 Gemini 3.5 Flash-Lite (+18.9 pts)

Interactive Monthly Token Economics & ROI Forecaster

Model production workloads across prompt, completion, and cached context tokens, or switch models on the fly.

25.0M Tokens
500K 50M 250M 500M+
5.0M Tokens
100K 25M 75M 150M+
50% Cached
0% (Uncached) 25% 50% (Typical Agent) 95% Max

Estimated Monthly Spend

Gemini 3.5 Flash-Lite $2.63

$0.07/1M in · $0.30/1M out

Prompt Cache: $0.015/1M read · $0.07/1M write

Gemini 4 Argon $76.25

$2.00/1M in · $10.00/1M out

Prompt Cache: $0.100/1M read · $0.50/1M write

Projected Monthly Cost Reduction
$73.63 / mo
(96.6% lower cost with Gemini 3.5 Flash-Lite)
Open Full Matchup Analysis →
A

When to Choose Gemini 3.5 Flash-Lite

Choose Gemini 3.5 Flash-Lite (Google) for high-frequency data pipelines, real-time routing, large-scale document tagging, and ultra-low-cost conversational assistants — offering a 1,048k context window, 78ms TTFT, and $0.07/1M input pricing ($0.015/1M cached reads).

B

When to Choose Gemini 4 Argon

Choose Gemini 4 Argon (Google) for engineered with a 1M output token limit for long-horizon software engineering, cybersecurity vulnerability remediation, and deep multimodal enterprise work across legal and financial domains — offering a 1,024k context window, 850ms TTFT, and $2.00/1M input pricing ($0.100/1M cached reads).

Related Questions & Decision Factors

Which is cheaper: Gemini 3.5 Flash-Lite or Gemini 4 Argon?

Gemini 3.5 Flash-Lite is cheaper at $0.075/1M input tokens ($0.30/1M output) compared to $2.00/1M input ($10.00/1M output) for Gemini 4 Argon.

Which model has lower TTFT latency and higher tok/s throughput: Gemini 3.5 Flash-Lite or Gemini 4 Argon?

Gemini 3.5 Flash-Lite delivers faster first-token latency at 78ms TTFT (265 tok/s throughput) compared to 850ms TTFT (115 tok/s) for Gemini 4 Argon.

How do Gemini 3.5 Flash-Lite and Gemini 4 Argon compare on SWE-bench coding and GPQA Diamond reasoning?

On SWE-bench Verified software engineering, Gemini 3.5 Flash-Lite scores 55.4% versus 84.5% for Gemini 4 Argon. On GPQA Diamond graduate-level STEM reasoning, Gemini 3.5 Flash-Lite scores 68.4% versus 93.8% for Gemini 4 Argon (and 90.2% vs 98.2% on MATH-500).

When should you choose Gemini 3.5 Flash-Lite?

Choose Gemini 3.5 Flash-Lite (Google) for high-frequency data pipelines, real-time routing, large-scale document tagging, and ultra-low-cost conversational assistants — offering a 1,048k context window, 78ms TTFT, and $0.07/1M input pricing ($0.015/1M cached reads).

When should you choose Gemini 4 Argon?

Choose Gemini 4 Argon (Google) for engineered with a 1M output token limit for long-horizon software engineering, cybersecurity vulnerability remediation, and deep multimodal enterprise work across legal and financial domains — offering a 1,024k context window, 850ms TTFT, and $2.00/1M input pricing ($0.100/1M cached reads).

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