Which model is better: Gemini 2.5 Flash or Gemma 4 31B IT?
Gemma 4 31B IT is 60.0% cheaper for input tokens ($0.12 vs. $0.30 per 1M tokens) and $0.36 vs. $2.50 for output tokens (2.5x cost advantage). In terms of operational performance, Gemini 2.5 Flash delivers lower response latency at 110ms TTFT (5ms faster than Gemma 4 31B IT) with 180 vs. 155 tok/s throughput. Gemma 4 31B IT leads coding evaluations at 59.2% SWE-bench Verified vs. 58.0% for Gemini 2.5 Flash and 71.2% vs. 70.5% 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 2.5 Flash
Gemma 4 31B IT
Net Delta / Advantage
Input Cost / 1M Tokens
$0.30
$0.12
Gemma 4 31B IT is 2.5x cheaper
Output Cost / 1M Tokens
$2.50
$0.36
Gemma 4 31B IT (85.6% lower)
Prompt Cache Read / 1M
$0.030
$0.030
Identical Cache Read Pricing
Prompt Cache Write / 1M
$0.30
$0.12
Gemma 4 31B IT is 2.5x cheaper
Context Window (Max Output)
1,049k (66k out)
131k (16k out)
Gemini 2.5 Flash (8.0x larger context)
Avg TTFT Response Latency
110ms
115ms
Gemini 2.5 Flash (5ms faster)
Generation Speed (Throughput)
180 tok/s
155 tok/s
Gemini 2.5 Flash (+25 tok/s faster)
SWE-bench Verified (Coding)
58%
59.2%
Gemma 4 31B IT (+1.2% lead)
GPQA Diamond (PhD STEM)
70.5%
71.2%
Gemma 4 31B IT (+0.7% lead)
MMLU-Pro (Multi-Discipline)
82%
82.8%
Gemma 4 31B IT (+0.8% lead)
MATH-500 (Quantitative Logic)
89%
91.5%
Gemma 4 31B IT (+2.5% lead)
Inference Value Score (IVR)
66.6 / 100
80.3 / 100
Gemma 4 31B IT (+13.7 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 2.5 Flash or Gemma 4 31B IT?
Gemma 4 31B IT is cheaper at $0.12/1M input tokens ($0.36/1M output) compared to $0.30/1M input ($2.50/1M output) for Gemini 2.5 Flash.
Which model has lower TTFT latency and higher tok/s throughput: Gemini 2.5 Flash or Gemma 4 31B IT?
Gemini 2.5 Flash delivers faster first-token latency at 110ms TTFT (180 tok/s throughput) compared to 115ms TTFT (155 tok/s) for Gemma 4 31B IT.
How do Gemini 2.5 Flash and Gemma 4 31B IT compare on SWE-bench coding and GPQA Diamond reasoning?
On SWE-bench Verified software engineering, Gemini 2.5 Flash scores 58% versus 59.2% for Gemma 4 31B IT. On GPQA Diamond graduate-level STEM reasoning, Gemini 2.5 Flash scores 70.5% versus 71.2% for Gemma 4 31B IT (and 89% vs 91.5% on MATH-500).
When should you choose Gemini 2.5 Flash?
Choose Gemini 2.5 Flash (Google) for cost-efficient 1M-context summarization, multimodal extraction, and interactive assistants — offering a 1,048k context window, 110ms TTFT, and $0.30/1M input pricing ($0.030/1M 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).
