Ministral 3 14B 2512 vs Ministral 3 8B 2512

We tested 12 benchmarks (1-5 scale). Results: Ministral 3 14B 2512 wins strategic analysis (4 vs 3) and creative problem solving (4 vs 3). Ministral 3 8B 2512 wins constrained rewriting (5 vs 4). The remaining nine tests tie. Detailed context:

• strategic analysis: 14B scores 4 vs 8B 3; 14B is ranked "rank 27 of 54 (9 models share this score)" while 8B is "rank 36 of 54 (8 models share this score)" — this indicates 14B is measurably stronger at nuanced tradeoff reasoning and numeric tradeoffs.
• creative problem solving: 14B 4 vs 8B 3; 14B’s "rank 9 of 54 (21 models share)" vs 8B's "rank 30 of 54 (17 models share)" means 14B produces more specific, non-obvious feasible ideas in our tests.
• constrained rewriting: 8B scores 5 vs 14B 4; 8B is "tied for 1st with 4 other models out of 53 tested," so it’s the better choice when tight compression and exact character limits matter.
• structured output, tool calling, faithfulness, classification, long context, safety calibration, persona consistency, agentic planning, multilingual: all ties (both models score the same). For example, both score 4 on tool calling (rank "rank 18 of 54 (29 models share this score)") and 4 on long context (both "rank 38 of 55 (17 models share this score)"), so they perform similarly on function selection, argument accuracy, and retrieval at 30K+ tokens in our suite. Practical takeaway: pick 14B when you need stronger strategic reasoning or higher creativity; pick 8B when constrained-rewrite quality or lower cost is the priority. All other capabilities are effectively equal in our 12-test suite.

Ministral 3 14B 2512 charges $0.20 per mTok (input and output); Ministral 3 8B 2512 charges $0.15 per mTok. At 1M tokens/month (1,000 mTok) that’s $200 vs $150 — a $50/month gap. At 10M tokens/month it’s $2,000 vs $1,500 — $500/month difference. At 100M tokens/month it’s $20,000 vs $15,000 — $5,000/month difference. The 14B model is ~33% more expensive (priceRatio 1.333...), so high-volume deployments, multi-tenant services, or tight-margin SaaS should prefer the 8B unless the 14B’s specific wins justify the incremental spend.

Choose Ministral 3 14B 2512 if you need better strategic reasoning or creative problem solving (14B scores 4 vs 3 in those tests) and can absorb ~33% higher per-mTok costs. Use cases: product strategy assistants, research drafts requiring multi-step numeric tradeoffs, ideation agents where novelty matters. Choose Ministral 3 8B 2512 if you’re cost-sensitive or your workload prioritizes exact compression and character-limited rewriting (8B scores 5 vs 4 on constrained rewriting). Use cases: high-volume API services, content pipelines with tight quotas, or applications where cost per token dominates decision-making.