💰 Unit Cost Winner Gemma 4 31B IT $0.12/1M in · $0.36/1M out
⚡ Latency & Speed Winner Gemma 4 31B IT 115ms TTFT · 155 tok/s
💻 Coding (SWE) Winner Gemini 2.5 Pro 63.8% SWE-bench · 89.8% HumanEval
🧠 STEM Reasoning Winner Gemini 2.5 Pro 74% GPQA · 95% MATH-500

Which model is better: Gemini 2.5 Pro or Gemma 4 31B IT?

Gemma 4 31B IT is 90.4% cheaper for input tokens ($0.12 vs. $1.25 per 1M tokens) and $0.36 vs. $10.00 for output tokens (10.4x cost advantage). In terms of operational performance, Gemma 4 31B IT delivers lower response latency at 115ms TTFT (585ms faster than Gemini 2.5 Pro) with 155 vs. 80 tok/s throughput. Gemini 2.5 Pro leads coding evaluations at 63.8% SWE-bench Verified vs. 59.2% for Gemma 4 31B IT and 74.0% vs. 71.2% 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 2.5 Pro Gemma 4 31B IT Net Delta / Advantage
Input Cost / 1M Tokens $1.25 $0.12 Gemma 4 31B IT is 10.4x cheaper
Output Cost / 1M Tokens $10.00 $0.36 Gemma 4 31B IT (96.4% lower)
Prompt Cache Read / 1M $0.313 $0.030 Gemma 4 31B IT is 10.4x cheaper
Prompt Cache Write / 1M $1.25 $0.12 Gemma 4 31B IT is 10.4x cheaper
Context Window (Max Output) 1,024k (66k out) 131k (16k out) Gemini 2.5 Pro (7.8x larger context)
Avg TTFT Response Latency 700ms 115ms Gemma 4 31B IT (585ms faster)
Generation Speed (Throughput) 80 tok/s 155 tok/s Gemma 4 31B IT (+75 tok/s faster)
SWE-bench Verified (Coding) 63.8% 59.2% Gemini 2.5 Pro (+4.6% lead)
GPQA Diamond (PhD STEM) 74% 71.2% Gemini 2.5 Pro (+2.8% lead)
MMLU-Pro (Multi-Discipline) 85.2% 82.8% Gemini 2.5 Pro (+2.4% lead)
MATH-500 (Quantitative Logic) 95% 91.5% Gemini 2.5 Pro (+3.5% lead)
Inference Value Score (IVR) 56.8 / 100 80.3 / 100 Gemma 4 31B IT (+23.5 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 2.5 Pro $69.53

$1.25/1M in · $10.00/1M out

Prompt Cache: $0.313/1M read · $1.25/1M write

Gemma 4 31B IT $3.68

$0.12/1M in · $0.36/1M out

Prompt Cache: $0.030/1M read · $0.12/1M write

Projected Monthly Cost Reduction
$65.86 / mo
(94.7% lower cost with Gemma 4 31B IT)
Open Full Matchup Analysis →
A

When to Choose Gemini 2.5 Pro

Choose Gemini 2.5 Pro (Google) for long-context document and video analysis, large codebase ingestion, and multimodal reasoning — offering a 1,024k context window, 700ms TTFT, and $1.25/1M input pricing ($0.312/1M cached reads).

B

When to 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).

Related Questions & Decision Factors

Which is cheaper: Gemini 2.5 Pro or Gemma 4 31B IT?

Gemma 4 31B IT is cheaper at $0.12/1M input tokens ($0.36/1M output) compared to $1.25/1M input ($10.00/1M output) for Gemini 2.5 Pro.

Which model has lower TTFT latency and higher tok/s throughput: Gemini 2.5 Pro or Gemma 4 31B IT?

Gemma 4 31B IT delivers faster first-token latency at 115ms TTFT (155 tok/s throughput) compared to 700ms TTFT (80 tok/s) for Gemini 2.5 Pro.

How do Gemini 2.5 Pro and Gemma 4 31B IT compare on SWE-bench coding and GPQA Diamond reasoning?

On SWE-bench Verified software engineering, Gemini 2.5 Pro scores 63.8% versus 59.2% for Gemma 4 31B IT. On GPQA Diamond graduate-level STEM reasoning, Gemini 2.5 Pro scores 74% versus 71.2% for Gemma 4 31B IT (and 95% vs 91.5% on MATH-500).

When should you choose Gemini 2.5 Pro?

Choose Gemini 2.5 Pro (Google) for long-context document and video analysis, large codebase ingestion, and multimodal reasoning — offering a 1,024k context window, 700ms TTFT, and $1.25/1M input pricing ($0.312/1M 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).

Explore High-Priority Related Model Matchups