Which model is better: Gemini 3.5 Flash-Lite or Gemma 4 31B IT?
Gemini 3.5 Flash-Lite is 37.5% cheaper for input tokens ($0.07 vs. $0.12 per 1M tokens) and $0.30 vs. $0.36 for output tokens (1.6x cost advantage). In terms of operational performance, Gemini 3.5 Flash-Lite delivers lower response latency at 78ms TTFT (37ms faster than Gemma 4 31B IT) with 265 vs. 155 tok/s throughput. Gemma 4 31B IT leads coding evaluations at 59.2% SWE-bench Verified vs. 55.4% for Gemini 3.5 Flash-Lite and 71.2% vs. 68.4% on GPQA Diamond.
Verified daily via automated API latency tests and official documentation.
Zero-Shot RAG Verified
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
Gemma 4 31B IT
Net Delta / Advantage
Input Cost / 1M Tokens
$0.07
$0.12
Gemini 3.5 Flash-Lite is 1.6x cheaper
Output Cost / 1M Tokens
$0.30
$0.36
Gemini 3.5 Flash-Lite (16.7% lower)
Prompt Cache Read / 1M
$0.015
$0.030
Gemini 3.5 Flash-Lite is 2.0x cheaper
Prompt Cache Write / 1M
$0.07
$0.12
Gemini 3.5 Flash-Lite is 1.6x cheaper
Context Window (Max Output)
1,049k (33k out)
131k (16k out)
Gemini 3.5 Flash-Lite (8.0x larger context)
Avg TTFT Response Latency
78ms
115ms
Gemini 3.5 Flash-Lite (37ms faster)
Generation Speed (Throughput)
265 tok/s
155 tok/s
Gemini 3.5 Flash-Lite (+110 tok/s faster)
SWE-bench Verified (Coding)
55.4%
59.2%
Gemma 4 31B IT (+3.8% lead)
GPQA Diamond (PhD STEM)
68.4%
71.2%
Gemma 4 31B IT (+2.8% lead)
MMLU-Pro (Multi-Discipline)
80.1%
82.8%
Gemma 4 31B IT (+2.7% lead)
MATH-500 (Quantitative Logic)
90.2%
91.5%
Gemma 4 31B IT (+1.3% lead)
Inference Value Score (IVR)
81.5 / 100
80.3 / 100
Gemini 3.5 Flash-Lite (+1.2 pts)
Interactive Monthly Token Economics & ROI Forecaster
Model production workloads across prompt, completion, and cached context tokens, or switch models on the fly.
Which is cheaper: Gemini 3.5 Flash-Lite or Gemma 4 31B IT?
Gemini 3.5 Flash-Lite is cheaper at $0.075/1M input tokens ($0.30/1M output) compared to $0.12/1M input ($0.36/1M output) for Gemma 4 31B IT.
Which model has lower TTFT latency and higher tok/s throughput: Gemini 3.5 Flash-Lite or Gemma 4 31B IT?
Gemini 3.5 Flash-Lite delivers faster first-token latency at 78ms TTFT (265 tok/s throughput) compared to 115ms TTFT (155 tok/s) for Gemma 4 31B IT.
How do Gemini 3.5 Flash-Lite and Gemma 4 31B IT compare on SWE-bench coding and GPQA Diamond reasoning?
On SWE-bench Verified software engineering, Gemini 3.5 Flash-Lite scores 55.4% versus 59.2% for Gemma 4 31B IT. On GPQA Diamond graduate-level STEM reasoning, Gemini 3.5 Flash-Lite scores 68.4% versus 71.2% for Gemma 4 31B IT (and 90.2% vs 91.5% 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 Gemma 4 31B IT?
Choose Gemma 4 31B IT (Google) for self-hosted VPC inference, fine-tuned domain agents, sovereign healthcare/finance workloads, and low-latency local code generation — offering a 131k context window, 115ms TTFT, and $0.12/1M input pricing ($0.030/1M cached reads).
