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Anthropic Claude Sonnet 5 VS MiniMax MiniMax M3

Claude Sonnet 5 vs MiniMax M3: which wins at real work?

22 task areas · same graded test runs · rank comparison only, so 0–100 and Elo collections never mix raw scores.

MiniMax M3 wins 13 of 22 task areas we tested; Claude Sonnet 5 takes 9. MiniMax M3 costs 8.0× less per token ($1.5 vs $12 per 1M).

9
Task areas won
13
62
Avg percentile
65
1
Top-3 finishes
4
$12.0
Price / 1M tokens
$1.5
Anthropic
Provider
MiniMax

MiniMax M3 costs 8.0× less per token ($1.5 vs $12 per 1M).

Task by task

Task area Claude Sonnet 5 MiniMax M3 Winner
Product & Project Management #61 / 110
Strong
#3 / 110
Excellent
MiniMax M3
Knowledge & Docs #18 / 110
Strong
#67 / 110
Usable
Claude Sonnet 5
Chef / Home Cooking #28 / 126
Usable
#74 / 126
Usable
Claude Sonnet 5
Coding #6 / 115
Excellent
#49 / 115
Strong
Claude Sonnet 5
Content & Brand #67 / 124
Strong
#28 / 124
Strong
MiniMax M3
Frontend & Landing Pages #57 / 109
Needs editing
#20 / 109
Needs editing
MiniMax M3
Executive Assistant #72 / 112
Strong
#39 / 112
Strong
MiniMax M3
Investor & Pitch #39 / 66
Usable
#12 / 66
Strong
MiniMax M3
Customer Support #57 / 113
Strong
#83 / 113
Usable
Claude Sonnet 5
AI Strategy #2 / 126
Strong
#27 / 126
Strong
Claude Sonnet 5
Creative & Comedy #79 / 110 #55 / 110 MiniMax M3
Legal & HR #57 / 110
Excellent
#34 / 110
Excellent
MiniMax M3
Summarization & Meeting Notes #58 / 110
Excellent
#79 / 110
Excellent
Claude Sonnet 5
Research & Competitive Analysis #15 / 110
Excellent
#33 / 110
Strong
Claude Sonnet 5
Data & Analytics #16 / 110
Excellent
#1 / 110
Excellent
MiniMax M3
RAG, Safety & Grounding #86 / 113
Excellent
#72 / 113
Excellent
MiniMax M3
Sales #16 / 110
Strong
#2 / 110
Strong
MiniMax M3
Translation & Localization #41 / 110
Excellent
#55 / 110
Excellent
Claude Sonnet 5
Landing Pages #12 / 72
Strong
#2 / 72
Strong
MiniMax M3
Training & Education #52 / 110
Excellent
#42 / 110
Excellent
MiniMax M3
Presentations & Decks #22 / 110
Excellent
#29 / 110
Excellent
Claude Sonnet 5
Structured Output #69 / 113
Strong
#65 / 113
Strong
MiniMax M3

Rank = position among every model config we tested in that task area (lower is better). Sorted by biggest gap first.

Same task, both models — judged

Both models answered the same test case; an independent judge graded each. Quotes are the judge's actual rationale.

Coding

Performance optimization (Code Quality and Testing Test)
Claude Sonnet 5 98/100

“The candidate provides a highly effective and correct optimization using batching and window functions, handles edge cases like empty results, and offers a comprehensive, insightful discussion of tradeoffs.”

MiniMax M3 10/100

“The solution contains major failures including a severe SQL performance regression and non-executable Python code.”

Frequently asked

Is Claude Sonnet 5 better than MiniMax M3?

Across 22 task areas we benchmarked, MiniMax M3 ranks higher in 13 and Claude Sonnet 5 in 9.

Which is cheaper, Claude Sonnet 5 or MiniMax M3?

MiniMax M3 costs 8.0× less per token ($1.5 vs $12 per 1M).

What is Claude Sonnet 5 better at?

Claude Sonnet 5 out-ranks MiniMax M3 at Knowledge & Docs, Chef / Home Cooking, Coding.

What is MiniMax M3 better at?

MiniMax M3 out-ranks Claude Sonnet 5 at Product & Project Management, Content & Brand, Frontend & Landing Pages.

Full Claude Sonnet 5 review → Full MiniMax M3 review → Full model leaderboard →

More comparisons

This page is Spring Prompt, running in public

We just did this for every model. Do it for your prompt.

The rankings above come from running real tasks through real models and scoring every output. Spring Prompt is that same engine — pointed at your prompt, your test cases, and your definition of good.

  • Generate test cases from your prompt — no eval set required to start.
  • Compare models side by side with quality, cost and latency in one matrix.
  • Optimise the winner until the scores say it's ready to ship.
Experiment · Cold outreach email

Prompt × model results

12 test cases · 3 evals
Claude Opus
GPT-5
Gemini
v1
7.1
6.8
7.4
v2
8.3
7.9
8.0
v3
9.2
8.6
8.4
Best combo: v3 × Claude Opus
9.2 quality · $0.004/run · 1.8s