Claude Fable 5.1 vs MiniMax M3
Claude Fable 5.1 leads MiniMax M3 on coding, 84.2 to 39.2 on the Vibe Coding Index, and MiniMax M3 costs 41.7x less per output token ($1.20 vs $50.00 per million). Updated October 22, 2026; 101 benchmarks have a result for both.
Claude Fable 5.1 or MiniMax M3: which to pick
Pick Claude Fable 5.1 for coding: it scores 84.2 on the Vibe Coding Index against 39.2 for MiniMax M3, though on 5 benchmarks against 6.
Pick MiniMax M3 for output tokens 41.7x cheaper ($1.20 vs $50.00 per million) and a larger context window (1.05M against 1M tokens).
- Shared results
- 101
- Claude Fable 5.1 only
- 32
- MiniMax M3 only
- 16
- Like-for-like categories
- 8 of 9
Only benchmarks that tested both models count toward a pick; a result only one model has is shown but not compared.
Which one for your work
Each card is decided by one number both models carry. Where only one has it, the card says so and makes no call.
Coding
Vibe Coding Index, six public coding benchmarks
Claude Fable 5.1
Claude Fable 5.1 scores 84.2 against 39.2.
5 and 6 benchmarks behind the scores
Intelligence
AA Intelligence Index
Claude Fable 5.1
Claude Fable 5.1 leads, 53.4 against 29.2.
Same board, both measured
Agentic work
AA Agentic Index
Claude Fable 5.1
Claude Fable 5.1 leads, 57.9 against 29.5.
Same board, both measured
Reasoning
GPQA Diamond
Claude Fable 5.1
Claude Fable 5.1 leads, 93.4% against 92.7%.
Same board, both measured
Knowledge
MMLU Pro
Claude Fable 5.1
Claude Fable 5.1 leads, 92.4% against 84.2%.
Same board, both measured
Web design
Design Arena: websites
Claude Fable 5.1
Claude Fable 5.1 leads, 1312 against 1257.
Same board, both measured
Long documents
Listed context window
MiniMax M3
MiniMax M3 takes 1.05M tokens against 1M.
Listed by OpenRouter
Everyday cost
1K input + 500 output tokens
MiniMax M3
Claude Fable 5.1 $0.035, MiniMax M3 $0.0009 per turn.
List prices
Cost per solved task
One SWE-bench Verified task, solved
No call
Only MiniMax M3 has the number, $0.56.
Directional only
At a glance
- Coding index
- Claude Fable 5.1 84.2 from 5 benchmarks, MiniMax M3 39.2 from 6 benchmarks.
- Widest category
- Math, 35.8 points apart on average over 4 shared benchmarks.
- Widest single gap
- LiveBench browser: Claude Fable 5.1 100.0% against MiniMax M3 8.0%, 92.0 points apart on a 0 to 100 scale.
- Output price
- Claude Fable 5.1 $50.00 against MiniMax M3 $1.20 per million output tokens, 41.7x apart.
- Context window
- Claude Fable 5.1 takes 1M tokens, MiniMax M3 1.05M.
Benchmark by benchmark
First the score: boards each model leads, per category, where both have a result. Then every board, a category to a fold; bars are each result on a 0 to 100 scale, so compare the two in a row, not one row with another.
| Category | Claude Fable 5.1 | Bars | MiniMax M3 | Ties |
|---|---|---|---|---|
| Coding | 20 | 0 | ||
| Intelligence | 2 | 0 | ||
| Agentic work | 15 | 0 | ||
| Reasoning | 12 | 0 | ||
| Math | 4 | 0 | ||
| Knowledge | 9 | 0 | ||
| Web design | 9 | 0 | ||
| General | 29 | 1 | ||
| All shared boards | 100 | 1 |
CodingLike-for-likeSix of these boards feed the Vibe Coding Index200
| Benchmark | Claude Fable 5.1 | MiniMax M3 | Leader |
|---|---|---|---|
| LiveBench coding | 97.7% | 70.9% | Claude Fable 5.1 |
| LMArena WebDev | 1743 | 1482 | Claude Fable 5.1 |
| AA Coding Index | 81.6 | 58.6 | Claude Fable 5.1 |
| LiveCodeBench (Vals AI) | 90.5% | 82.2% | Claude Fable 5.1 |
| SWE-bench Verified (Vals AI) | Not measured | 75.0% | Only MiniMax M3 measured |
| Terminal-Bench 4 (Vals AI) | 58.1% | 1.0% | Claude Fable 5.1 |
| Vibe Code Bench (Vals AI) | 90.3% | 47.6% | Claude Fable 5.1 |
| Code migration (Vals AI) | 54.6% | 19.9% | Claude Fable 5.1 |
| ProgramBench (Vals AI) | 7.0% | Not measured | Only Claude Fable 5.1 measured |
| IOI (Vals AI) | 90.8% | Not measured | Only Claude Fable 5.1 measured |
| Terminal-Bench 2.1 (Vals AI) | 85.0% | 53.6% | Claude Fable 5.1 |
| SWE-bench Multimodal (Vals AI) | 61.3% | 33.3% | Claude Fable 5.1 |
| Vibe Code Bench 1-100 (Vals AI) | 28.0% | 9.2% | Claude Fable 5.1 |
| SkillsBench (Vals AI) | 61.5% | 51.5% | Claude Fable 5.1 |
| CyberBench (Vals AI) | 70.4% | 65.0% | Claude Fable 5.1 |
| SciCode | 63.1% | 47.1% | Claude Fable 5.1 |
| Terminal-Bench Hard (Artificial Analysis run) | Not measured | 42.4% | Only MiniMax M3 measured |
| FrontierCode | 50.9% | 14.7% | Claude Fable 5.1 |
| FrontierSWE | 56.3% | Not measured | Only Claude Fable 5.1 measured |
| GSO-Bench | 88.2% | Not measured | Only Claude Fable 5.1 measured |
| WeirdML | 92.9% | Not measured | Only Claude Fable 5.1 measured |
| MirrorCode | 73.3% | Not measured | Only Claude Fable 5.1 measured |
| ALE-Bench | 2143.2 | 640.0 | Claude Fable 5.1 |
| LMArena Text: coding | 1532 | 1470 | Claude Fable 5.1 |
| LMArena Text: software and IT | 1530 | 1466 | Claude Fable 5.1 |
| LMArena WebDev: React | 1792 | 1478 | Claude Fable 5.1 |
| LMArena WebDev: HTML | 1684 | 1455 | Claude Fable 5.1 |
| LMArena WebDev: from an image | 1722 | 1470 | Claude Fable 5.1 |
| SWE-Bench Pro V2 | 99.1% | Not measured | Only Claude Fable 5.1 measured |
| SWE Atlas: Codebase QnA | 60.0% | Not measured | Only Claude Fable 5.1 measured |
| SWE Atlas: Refactoring | 56.7% | Not measured | Only Claude Fable 5.1 measured |
| SWE Atlas: Test Writing | 67.0% | Not measured | Only Claude Fable 5.1 measured |
| Neither model has a result on the other 11 boards here | |||
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index20
| Benchmark | Claude Fable 5.1 | MiniMax M3 | Leader |
|---|---|---|---|
| AA Intelligence Index | 53.4 | 29.2 | Claude Fable 5.1 |
| Epoch Capabilities Index | 166.5 | 146.9 | Claude Fable 5.1 |
Agentic workLike-for-likePublic boards, shown as published, kept out of the index150
| Benchmark | Claude Fable 5.1 | MiniMax M3 | Leader |
|---|---|---|---|
| AA Agentic Index | 57.9 | 29.5 | Claude Fable 5.1 |
| Design Arena: agents building web apps | 1318 | 1200 | Claude Fable 5.1 |
| Design Arena: agents building full-stack apps | 1326 | 1197 | Claude Fable 5.1 |
| Design Arena: agents building mobile apps | 1267 | 1169 | Claude Fable 5.1 |
| Design Arena: agents building Android apps | Not measured | 1158 | Only MiniMax M3 measured |
| Design Arena: agents building Godot games | 1327 | Not measured | Only Claude Fable 5.1 measured |
| Design Arena: agents building games | Not measured | 1159 | Only MiniMax M3 measured |
| Design Arena: HTML slides | Not measured | 1120 | Only MiniMax M3 measured |
| Design Arena: PowerPoint slides | 1307 | 1178 | Claude Fable 5.1 |
| Design Arena: spreadsheets | 1394 | 1042 | Claude Fable 5.1 |
| LiveBench research | 82.0% | 68.0% | Claude Fable 5.1 |
| LiveBench browser | 100.0% | 8.0% | Claude Fable 5.1 |
| LiveBench long agentic | 80.8% | 12.4% | Claude Fable 5.1 |
| SREBench (Vals AI) | 22.9% | Not measured | Only Claude Fable 5.1 measured |
| Finance Agent (Vals AI) | 58.9% | 48.3% | Claude Fable 5.1 |
| Tax Agent Bench (Vals AI) | 49.2% | 20.6% | Claude Fable 5.1 |
| Legal Research Bench (Vals AI) | 55.3% | 29.8% | Claude Fable 5.1 |
| Excel Modeling Benchmark (Vals AI) | 76.7% | 47.8% | Claude Fable 5.1 |
| Terminal-Bench-Science (Vals AI) | 40.0% | Not measured | Only Claude Fable 5.1 measured |
| Time Horizon Index (Vals AI) | 63.3% | Not measured | Only Claude Fable 5.1 measured |
| CUA-bench (Vals AI) | 13.2% | Not measured | Only Claude Fable 5.1 measured |
| Robo-bench (Vals AI) | 5.8% | Not measured | Only Claude Fable 5.1 measured |
| τ²-Bench Telecom | Not measured | 88.9% | Only MiniMax M3 measured |
| APEX-Agents | 68.6% | 37.7% | Claude Fable 5.1 |
| Remote Labor Index | 17.9% | Not measured | Only Claude Fable 5.1 measured |
| OSWorld 2.0 | Not measured | 4.6% | Only MiniMax M3 measured |
| SpireClimb | 2.0% | Not measured | Only Claude Fable 5.1 measured |
| Vending-Bench 2 | $5,422 | $2,158 | Claude Fable 5.1 |
| LMArena Search | 1246 | Not measured | Only Claude Fable 5.1 measured |
| MCP Atlas | 87.2% | Not measured | Only Claude Fable 5.1 measured |
| Neither model has a result on the other 12 boards here | |||
ReasoningLike-for-likePublic boards, shown as published, kept out of the index120
| Benchmark | Claude Fable 5.1 | MiniMax M3 | Leader |
|---|---|---|---|
| GPQA Diamond | 93.4% | 92.7% | Claude Fable 5.1 |
| LiveBench reasoning | 91.7% | 74.5% | Claude Fable 5.1 |
| MysteryMechanism (Vals AI) | 47.8% | Not measured | Only Claude Fable 5.1 measured |
| MMMU Pro (Vals AI) | 90.6% | 81.2% | Claude Fable 5.1 |
| GPQA Diamond (Artificial Analysis run) | 93.7% | 92.9% | Claude Fable 5.1 |
| Humanity's Last Exam (Artificial Analysis run) | 59.1% | 39.0% | Claude Fable 5.1 |
| GPQA Diamond (Epoch AI run) | Not measured | 90.9% | Only MiniMax M3 measured |
| ARC-AGI | 97.5% | Not measured | Only Claude Fable 5.1 measured |
| ARC-AGI-2 | 90.0% | Not measured | Only Claude Fable 5.1 measured |
| SimpleBench | Not measured | 45.8% | Only MiniMax M3 measured |
| Chess puzzles | 48.0% | 13.0% | Claude Fable 5.1 |
| Mystery game puzzles | 58.0% | 8.0% | Claude Fable 5.1 |
| EBR-bench | 57.1% | Not measured | Only Claude Fable 5.1 measured |
| LMArena Text: hard prompts | 1528 | 1447 | Claude Fable 5.1 |
| LMArena Text: expert | 1544 | 1461 | Claude Fable 5.1 |
| LMArena Text: hard prompts in English | 1522 | 1455 | Claude Fable 5.1 |
| LMArena Vision: diagrams | 1343 | 1266 | Claude Fable 5.1 |
| LMArena Vision: homework | 1345 | 1268 | Claude Fable 5.1 |
| Humanity's Last Exam (Scale run) | 51.3% | Not measured | Only Claude Fable 5.1 measured |
| Neither model has a result on the other 4 boards here | |||
MathLike-for-likePublic boards, shown as published, kept out of the index40
| Benchmark | Claude Fable 5.1 | MiniMax M3 | Leader |
|---|---|---|---|
| OTIS Mock AIME | 100.0% | 71.1% | Claude Fable 5.1 |
| FrontierMath, tiers 1 to 3 | 90.2% | Not measured | Only Claude Fable 5.1 measured |
| FrontierMath, tier 4 | 87.8% | Not measured | Only Claude Fable 5.1 measured |
| ProofBench | 100.0% | 18.0% | Claude Fable 5.1 |
| LMArena Text: math | 1531 | 1429 | Claude Fable 5.1 |
| LMArena Text: mathematical work | 1541 | 1448 | Claude Fable 5.1 |
| MathArena | 78.1% | Not measured | Only Claude Fable 5.1 measured |
| Neither model has a result on the other 7 boards here | |||
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index90
| Benchmark | Claude Fable 5.1 | MiniMax M3 | Leader |
|---|---|---|---|
| MMLU Pro | 92.4% | 84.2% | Claude Fable 5.1 |
| LegalBench (Vals AI) | 88.5% | 85.4% | Claude Fable 5.1 |
| CorpFin (Vals AI) | Not measured | 68.1% | Only MiniMax M3 measured |
| TaxEval (Vals AI) | 76.0% | 72.7% | Claude Fable 5.1 |
| MortgageTax (Vals AI) | 70.8% | 68.4% | Claude Fable 5.1 |
| MedCode (Vals AI) | 53.5% | 46.3% | Claude Fable 5.1 |
| SimpleQA Verified | 70.8% | Not measured | Only Claude Fable 5.1 measured |
| LMArena Text: science | 1532 | 1452 | Claude Fable 5.1 |
| LMArena Text: medicine and healthcare | 1531 | 1441 | Claude Fable 5.1 |
| LMArena Text: legal and government | 1514 | 1437 | Claude Fable 5.1 |
| LMArena Text: business and finance | 1493 | 1434 | Claude Fable 5.1 |
| PRBench Finance | 50.8% | Not measured | Only Claude Fable 5.1 measured |
| PRBench Legal | 51.6% | Not measured | Only Claude Fable 5.1 measured |
| Neither model has a result on the other 7 boards here | |||
Web designLike-for-likePublic boards, shown as published, kept out of the index90
| Benchmark | Claude Fable 5.1 | MiniMax M3 | Leader |
|---|---|---|---|
| Design Arena: websites | 1312 | 1257 | Claude Fable 5.1 |
| Design Arena: UI components | 1336 | 1243 | Claude Fable 5.1 |
| Design Arena: game dev | 1381 | 1210 | Claude Fable 5.1 |
| Design Arena: data viz | 1345 | 1236 | Claude Fable 5.1 |
| Design Arena: 3D | 1392 | 1208 | Claude Fable 5.1 |
| Design Arena: all code categories | 1335 | 1246 | Claude Fable 5.1 |
| Design Arena: SVG | 1300 | 1160 | Claude Fable 5.1 |
| Design Arena: ASCII art | 1323 | 1161 | Claude Fable 5.1 |
| LiveBench design | 83.4% | 66.2% | Claude Fable 5.1 |
GeneralLike-for-likePublic boards, shown as published, kept out of the index291
| Benchmark | Claude Fable 5.1 | MiniMax M3 | Leader |
|---|---|---|---|
| LiveBench data analysis | 80.3% | 76.2% | Claude Fable 5.1 |
| Public Benefits Bench (Vals AI) | 74.9% | 64.1% | Claude Fable 5.1 |
| SAGE (Vals AI) | 48.5% | 50.6% | MiniMax M3 |
| MedScribe (Vals AI) | 91.3% | 87.3% | Claude Fable 5.1 |
| Vals Multimodal Index | Not measured | 60.0% | Only MiniMax M3 measured |
| IFBench | Not measured | 82.9% | Only MiniMax M3 measured |
| Long context reasoning (AA-LCR) | 85.3% | 83.0% | Claude Fable 5.1 |
| DTBench | 97.6% | 78.9% | Claude Fable 5.1 |
| LMCA | 65.5% | 33.7% | Claude Fable 5.1 |
| Surface Evolver Bench | Not measured | 55.0% | Only MiniMax M3 measured |
| Furniture assembly | 70.0% | Not measured | Only Claude Fable 5.1 measured |
| LMArena Text | 1512 | 1433 | Claude Fable 5.1 |
| LMArena Text: instruction following | 1518 | 1433 | Claude Fable 5.1 |
| LMArena Text: creative writing | 1509 | 1404 | Claude Fable 5.1 |
| LMArena Vision | 1319 | 1251 | Claude Fable 5.1 |
| LMArena Text: English | 1506 | 1443 | Claude Fable 5.1 |
| LMArena Text: non-English | 1508 | 1420 | Claude Fable 5.1 |
| LMArena Text: Chinese | 1584 | 1466 | Claude Fable 5.1 |
| LMArena Text: German | 1499 | 1428 | Claude Fable 5.1 |
| LMArena Text: Japanese | 1562 | 1380 | Claude Fable 5.1 |
| LMArena Text: Korean | 1517 | 1373 | Claude Fable 5.1 |
| LMArena Text: French | 1523 | 1444 | Claude Fable 5.1 |
| LMArena Text: Spanish | 1520 | 1433 | Claude Fable 5.1 |
| LMArena Text: Russian | 1520 | 1426 | Claude Fable 5.1 |
| LMArena Text: Polish | 1525 | 1423 | Claude Fable 5.1 |
| LMArena Text: multi-turn | 1493 | 1443 | Claude Fable 5.1 |
| LMArena Text: longer queries | 1524 | 1446 | Claude Fable 5.1 |
| LMArena Text: writing and language | 1510 | 1419 | Claude Fable 5.1 |
| LMArena Text: entertainment and media | 1497 | 1403 | Claude Fable 5.1 |
| LMArena Vision: English | 1313 | 1263 | Claude Fable 5.1 |
| LMArena Vision: Chinese | 1391 | 1311 | Claude Fable 5.1 |
| LMArena Vision: reading text | 1327 | 1259 | Claude Fable 5.1 |
| LMArena Vision: humor | 1318 | 1235 | Claude Fable 5.1 |
| LMArena Vision: recognizing things | Not measured | 1197 | Only MiniMax M3 measured |
| LMArena Vision: creative writing | 1330 | 1234 | Claude Fable 5.1 |
| LMArena Document | Not measured | 1435 | Only MiniMax M3 measured |
| EQ-Bench 4 | Not measured | 1150 | Only MiniMax M3 measured |
| Neither model has a result on the other 11 boards here | |||
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
| Benchmark | Claude Fable 5.1 | MiniMax M3 | Leader |
|---|---|---|---|
| Neither model has a result on 5 boards here | |||
What each workload costs
Three fixed token mixes at each model's listed price, so per-token rates become a bill.
Chat turn
1K input + 500 output tokens
MiniMax M3 costs less
Repository review
50K input + 3K output tokens
MiniMax M3 costs less
Agent loop
200K input + 10K output tokens
MiniMax M3 costs less
Listed OpenRouter rates, without cache or batch discounts. A workload that does not fit a model's context window would need splitting.
Specification differences
The leading value in a row is marked; a row with a missing value names no leader. Our two rows are marked in red.
| Specification | Anthropic Claude Fable 5.1 | MiniMax M3 |
|---|---|---|
| Maker | Anthropic | MiniMax |
| Weights | No public weights listed | Open weights |
| Released | September 1, 2026 | May 31, 2026 |
| Context window | 1M | 1.05M |
| Input $/Mtok | $10.00 | $0.30 |
| Output $/Mtok | $50.00 | $1.20 |
| Coding index | 84.2 | 39.2 |
| Independent measurements behind it | 5 | 6 |
| Cost per solved task | Not computable | $0.56 |
| Source | OpenRouter listing | OpenRouter listing |
Questions
Is Claude Fable 5.1 better than MiniMax M3 for coding?
Pick Claude Fable 5.1 for coding: it scores 84.2 on the Vibe Coding Index against 39.2 for MiniMax M3, though on 5 benchmarks against 6. Pick MiniMax M3 for output tokens 41.7x cheaper ($1.20 vs $50.00 per million) and a larger context window (1.05M against 1M tokens).
Which is cheaper, Claude Fable 5.1 or MiniMax M3?
Claude Fable 5.1 costs $10.00 per million input tokens and $50.00 per million output tokens; MiniMax M3 costs $0.30 and $1.20. Cost per solved task is known for MiniMax M3 only.
Which has the bigger context window, Claude Fable 5.1 or MiniMax M3?
MiniMax M3, with 1.05M tokens against 1M.
How many benchmarks is the Claude Fable 5.1 vs MiniMax M3 comparison based on?
101 benchmarks have a result for both models as of October 22, 2026. Claude Fable 5.1's coding index rests on 5 independent benchmarks and MiniMax M3's on 6. Where only one model has a result, the page says so instead of naming a winner.