Which model is better: Gemma 4 31B IT or Grok 3 Mini?
Gemma 4 31B IT is 60.0% cheaper for input tokens ($0.12 vs. $0.30 per 1M tokens) and $0.36 vs. $1.20 for output tokens (2.5x cost advantage). In terms of operational performance, Gemma 4 31B IT delivers lower response latency at 115ms TTFT (35ms faster than Grok 3 Mini) with 155 vs. 160 tok/s throughput. Gemma 4 31B IT leads coding evaluations at 59.2% SWE-bench Verified vs. 54.0% for Grok 3 Mini and 71.2% vs. 68.0% 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
Gemma 4 31B IT
Grok 3 Mini
Net Delta / Advantage
Input Cost / 1M Tokens
$0.12
$0.30
Gemma 4 31B IT is 2.5x cheaper
Output Cost / 1M Tokens
$0.36
$1.20
Gemma 4 31B IT (70.0% lower)
Prompt Cache Read / 1M
$0.030
$0.080
Gemma 4 31B IT is 2.7x cheaper
Prompt Cache Write / 1M
$0.12
$0.30
Gemma 4 31B IT is 2.5x cheaper
Context Window (Max Output)
131k (16k out)
131k (16k out)
Equal Context Window
Avg TTFT Response Latency
115ms
150ms
Gemma 4 31B IT (35ms faster)
Generation Speed (Throughput)
155 tok/s
160 tok/s
Grok 3 Mini (+5 tok/s faster)
SWE-bench Verified (Coding)
59.2%
54%
Gemma 4 31B IT (+5.2% lead)
GPQA Diamond (PhD STEM)
71.2%
68%
Gemma 4 31B IT (+3.2% lead)
MMLU-Pro (Multi-Discipline)
82.8%
80%
Gemma 4 31B IT (+2.8% lead)
MATH-500 (Quantitative Logic)
91.5%
87%
Gemma 4 31B IT (+4.5% lead)
Inference Value Score (IVR)
80.3 / 100
69.2 / 100
Gemma 4 31B IT (+11.1 pts)
Interactive Monthly Token Economics & ROI Forecaster
Model production workloads across prompt, completion, and cached context tokens, or switch models on the fly.
Choose Grok 3 Mini (xAI) for high-speed reasoning model providing rapid answers and code generation with chain-of-thought capabilities at edge pricing — offering a 131k context window, 150ms TTFT, and $0.30/1M input pricing ($0.080/1M cached reads).
Gemma 4 31B IT is cheaper at $0.12/1M input tokens ($0.36/1M output) compared to $0.30/1M input ($1.20/1M output) for Grok 3 Mini.
Which model has lower TTFT latency and higher tok/s throughput: Gemma 4 31B IT or Grok 3 Mini?
Gemma 4 31B IT delivers faster first-token latency at 115ms TTFT (155 tok/s throughput) compared to 150ms TTFT (160 tok/s) for Grok 3 Mini.
How do Gemma 4 31B IT and Grok 3 Mini compare on SWE-bench coding and GPQA Diamond reasoning?
On SWE-bench Verified software engineering, Gemma 4 31B IT scores 59.2% versus 54% for Grok 3 Mini. On GPQA Diamond graduate-level STEM reasoning, Gemma 4 31B IT scores 71.2% versus 68% for Grok 3 Mini (and 91.5% vs 87% on MATH-500).
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).
When should you choose Grok 3 Mini?
Choose Grok 3 Mini (xAI) for high-speed reasoning model providing rapid answers and code generation with chain-of-thought capabilities at edge pricing — offering a 131k context window, 150ms TTFT, and $0.30/1M input pricing ($0.080/1M cached reads).
