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Claude Fable 5.1 vs MiMo-V2.6-Pro

Claude Fable 5.1 leads MiMo-V2.6-Pro on coding, 84.2 to 65.4 on the Vibe Coding Index, and MiMo-V2.6-Pro costs 57.5x less per output token ($0.87 vs $50.00 per million). Updated October 22, 2026; 71 benchmarks have a result for both.

Replace Claude Fable 5.1 Replace MiMo-V2.6-Pro
Claude Fable 5.1Anthropic
Coding
84.2
Overall
84.7
Output $/M
$50.00
67
MiMo-V2.6-ProXiaomi
Coding
65.4
Overall
68.4
Output $/M
$0.87
4
vs boards won of 71 shared

Claude Fable 5.1 or MiMo-V2.6-Pro: which to pick

Pick Claude Fable 5.1 for coding: it scores 84.2 on the Vibe Coding Index against 65.4 for MiMo-V2.6-Pro.

Pick MiMo-V2.6-Pro for output tokens 57.5x cheaper ($0.87 vs $50.00 per million) and a larger context window (1.05M against 1M tokens).

Model AClaude Fable 5.1Anthropic84.2/1005 independent benchmarksNo cost per solved taskModel BMiMo-V2.6-ProXiaomi65.4/1004 independent benchmarksNo cost per solved task
Shared results
71
Claude Fable 5.1 only
53
MiMo-V2.6-Pro only
2
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.

At a glance

Coding index
Claude Fable 5.1 84.2 from 5 benchmarks, MiMo-V2.6-Pro 65.4 from 4 benchmarks.
Widest category
Agentic work, 15.1 points apart on average over 11 shared benchmarks.
Widest single gap
IOI (Vals AI): Claude Fable 5.1 90.8% against MiMo-V2.6-Pro 39.3%, 51.5 points apart on a 0 to 100 scale.
Output price
Claude Fable 5.1 $50.00 against MiMo-V2.6-Pro $0.87 per million output tokens, 57.5x apart.
Context window
Claude Fable 5.1 takes 1M tokens, MiMo-V2.6-Pro 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.

Boards won, where both have a result
CategoryClaude Fable 5.1BarsMiMo-V2.6-ProTies
Coding152
Intelligence10
Agentic work110
Reasoning80
Math30
Knowledge50
Web design61
General181
All shared boards674
CodingLike-for-likeSix of these boards feed the Vibe Coding Index152
Coding benchmarks for Claude Fable 5.1 and MiMo-V2.6-Pro
BenchmarkClaude Fable 5.1MiMo-V2.6-ProLeader
LiveBench coding97.7%81.5%Claude Fable 5.1
LMArena WebDev17431625Claude Fable 5.1
AA Coding Index81.6Not measuredOnly Claude Fable 5.1 measured
LiveCodeBench (Vals AI)90.5%Not measuredOnly Claude Fable 5.1 measured
Terminal-Bench 4 (Vals AI)58.1%31.3%Claude Fable 5.1
Vibe Code Bench (Vals AI)90.3%85.2%Claude Fable 5.1
Code migration (Vals AI)54.6%43.0%Claude Fable 5.1
ProgramBench (Vals AI)7.0%0.5%Claude Fable 5.1
IOI (Vals AI)90.8%39.3%Claude Fable 5.1
Terminal-Bench 2.1 (Vals AI)85.0%67.8%Claude Fable 5.1
SWE-bench Multimodal (Vals AI)61.3%41.3%Claude Fable 5.1
Vibe Code Bench 1-100 (Vals AI)28.0%Not measuredOnly Claude Fable 5.1 measured
SkillsBench (Vals AI)61.5%Not measuredOnly Claude Fable 5.1 measured
CyberBench (Vals AI)70.4%72.9%MiMo-V2.6-Pro
SciCode63.1%60.9%Claude Fable 5.1
FrontierCode50.9%Not measuredOnly Claude Fable 5.1 measured
FrontierSWE56.3%Not measuredOnly Claude Fable 5.1 measured
GSO-Bench88.2%Not measuredOnly Claude Fable 5.1 measured
WeirdML92.9%Not measuredOnly Claude Fable 5.1 measured
MirrorCode73.3%Not measuredOnly Claude Fable 5.1 measured
ALE-Bench2143.21158.1Claude Fable 5.1
LMArena Text: coding15321533MiMo-V2.6-Pro
LMArena Text: software and IT15301528Claude Fable 5.1
LMArena WebDev: React17921639Claude Fable 5.1
LMArena WebDev: HTML16841616Claude Fable 5.1
LMArena WebDev: from an image17221598Claude Fable 5.1
Neither model has a result on the other 13 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index10
Intelligence benchmarks for Claude Fable 5.1 and MiMo-V2.6-Pro
BenchmarkClaude Fable 5.1MiMo-V2.6-ProLeader
AA Intelligence Index53.446.3Claude Fable 5.1
Epoch Capabilities Index166.5Not measuredOnly Claude Fable 5.1 measured
Agentic workLike-for-likePublic boards, shown as published, kept out of the index110
Agentic work benchmarks for Claude Fable 5.1 and MiMo-V2.6-Pro
BenchmarkClaude Fable 5.1MiMo-V2.6-ProLeader
AA Agentic Index57.9Not measuredOnly Claude Fable 5.1 measured
Design Arena: agents building web apps13181290Claude Fable 5.1
Design Arena: agents building full-stack apps1326Not measuredOnly Claude Fable 5.1 measured
Design Arena: agents building mobile apps1267Not measuredOnly Claude Fable 5.1 measured
Design Arena: agents building Godot games1327Not measuredOnly Claude Fable 5.1 measured
Design Arena: PowerPoint slides1305Not measuredOnly Claude Fable 5.1 measured
Design Arena: spreadsheets1380Not measuredOnly Claude Fable 5.1 measured
LiveBench research82.0%76.7%Claude Fable 5.1
LiveBench browser100.0%88.0%Claude Fable 5.1
LiveBench long agentic80.8%47.5%Claude Fable 5.1
SREBench (Vals AI)22.9%3.0%Claude Fable 5.1
Finance Agent (Vals AI)58.9%57.3%Claude Fable 5.1
Tax Agent Bench (Vals AI)49.2%32.4%Claude Fable 5.1
Legal Research Bench (Vals AI)55.3%47.1%Claude Fable 5.1
Harvey's Legal Agent Benchmark (Vals AI)Not measured13.8%Only MiMo-V2.6-Pro measured
Excel Modeling Benchmark (Vals AI)76.7%62.9%Claude Fable 5.1
Terminal-Bench-Science (Vals AI)40.0%2.9%Claude Fable 5.1
Time Horizon Index (Vals AI)63.3%Not measuredOnly Claude Fable 5.1 measured
CUA-bench (Vals AI)13.2%Not measuredOnly Claude Fable 5.1 measured
Robo-bench (Vals AI)5.8%Not measuredOnly Claude Fable 5.1 measured
APEX-Agents68.6%54.4%Claude Fable 5.1
Remote Labor Index17.9%Not measuredOnly Claude Fable 5.1 measured
SpireClimb2.0%Not measuredOnly Claude Fable 5.1 measured
Vending-Bench 2$5,422Not measuredOnly Claude Fable 5.1 measured
LMArena Search1246Not measuredOnly Claude Fable 5.1 measured
Neither model has a result on the other 16 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index80
Reasoning benchmarks for Claude Fable 5.1 and MiMo-V2.6-Pro
BenchmarkClaude Fable 5.1MiMo-V2.6-ProLeader
GPQA Diamond93.4%Not measuredOnly Claude Fable 5.1 measured
LiveBench reasoning91.7%79.6%Claude Fable 5.1
MysteryMechanism (Vals AI)47.8%15.3%Claude Fable 5.1
MMMU Pro (Vals AI)90.6%Not measuredOnly Claude Fable 5.1 measured
GPQA Diamond (Artificial Analysis run)93.7%Not measuredOnly Claude Fable 5.1 measured
Humanity's Last Exam (Artificial Analysis run)59.1%49.4%Claude Fable 5.1
ARC-AGI97.5%Not measuredOnly Claude Fable 5.1 measured
ARC-AGI-290.0%Not measuredOnly Claude Fable 5.1 measured
Chess puzzles48.0%Not measuredOnly Claude Fable 5.1 measured
Mystery game puzzles58.0%Not measuredOnly Claude Fable 5.1 measured
EBR-bench57.1%Not measuredOnly Claude Fable 5.1 measured
LMArena Text: hard prompts15281511Claude Fable 5.1
LMArena Text: expert15441541Claude Fable 5.1
LMArena Text: hard prompts in English15221520Claude Fable 5.1
LMArena Vision: diagrams13431281Claude Fable 5.1
LMArena Vision: homework13451264Claude Fable 5.1
Neither model has a result on the other 6 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index30
Math benchmarks for Claude Fable 5.1 and MiMo-V2.6-Pro
BenchmarkClaude Fable 5.1MiMo-V2.6-ProLeader
OTIS Mock AIME100.0%Not measuredOnly Claude Fable 5.1 measured
FrontierMath, tiers 1 to 390.2%Not measuredOnly Claude Fable 5.1 measured
FrontierMath, tier 487.8%Not measuredOnly Claude Fable 5.1 measured
ProofBench100.0%70.0%Claude Fable 5.1
LMArena Text: math15311500Claude Fable 5.1
LMArena Text: mathematical work15411511Claude Fable 5.1
Neither model has a result on the other 7 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index50
Knowledge benchmarks for Claude Fable 5.1 and MiMo-V2.6-Pro
BenchmarkClaude Fable 5.1MiMo-V2.6-ProLeader
MMLU Pro92.4%Not measuredOnly Claude Fable 5.1 measured
LegalBench (Vals AI)88.5%Not measuredOnly Claude Fable 5.1 measured
TaxEval (Vals AI)76.0%Not measuredOnly Claude Fable 5.1 measured
MortgageTax (Vals AI)70.8%Not measuredOnly Claude Fable 5.1 measured
MedCode (Vals AI)53.5%45.0%Claude Fable 5.1
SimpleQA Verified70.8%Not measuredOnly Claude Fable 5.1 measured
LMArena Text: science15321506Claude Fable 5.1
LMArena Text: medicine and healthcare15311497Claude Fable 5.1
LMArena Text: legal and government15141485Claude Fable 5.1
LMArena Text: business and finance14931468Claude Fable 5.1
Neither model has a result on the other 8 boards here
Web designLike-for-likePublic boards, shown as published, kept out of the index61
Web design benchmarks for Claude Fable 5.1 and MiMo-V2.6-Pro
BenchmarkClaude Fable 5.1MiMo-V2.6-ProLeader
Design Arena: websites13121308Claude Fable 5.1
Design Arena: UI components13361340MiMo-V2.6-Pro
Design Arena: game dev13811314Claude Fable 5.1
Design Arena: data viz13441336Claude Fable 5.1
Design Arena: 3D13921330Claude Fable 5.1
Design Arena: all code categories13351317Claude Fable 5.1
Design Arena: SVG1300Not measuredOnly Claude Fable 5.1 measured
Design Arena: ASCII art1323Not measuredOnly Claude Fable 5.1 measured
LiveBench design83.4%78.5%Claude Fable 5.1
GeneralLike-for-likePublic boards, shown as published, kept out of the index181
General benchmarks for Claude Fable 5.1 and MiMo-V2.6-Pro
BenchmarkClaude Fable 5.1MiMo-V2.6-ProLeader
Vals IndexNot measured57.8%Only MiMo-V2.6-Pro measured
LiveBench data analysis80.3%72.3%Claude Fable 5.1
Public Benefits Bench (Vals AI)74.9%68.9%Claude Fable 5.1
SAGE (Vals AI)48.5%45.0%Claude Fable 5.1
MedScribe (Vals AI)91.3%88.3%Claude Fable 5.1
Long context reasoning (AA-LCR)85.3%86.3%MiMo-V2.6-Pro
DTBench97.6%Not measuredOnly Claude Fable 5.1 measured
LMCA65.5%Not measuredOnly Claude Fable 5.1 measured
Furniture assembly70.0%Not measuredOnly Claude Fable 5.1 measured
LMArena Text15121491Claude Fable 5.1
LMArena Text: instruction following15181491Claude Fable 5.1
LMArena Text: creative writing15091466Claude Fable 5.1
LMArena Vision13191263Claude Fable 5.1
LMArena Text: English15061504Claude Fable 5.1
LMArena Text: non-English15081474Claude Fable 5.1
LMArena Text: Chinese15841529Claude Fable 5.1
LMArena Text: German1499Not measuredOnly Claude Fable 5.1 measured
LMArena Text: Japanese1562Not measuredOnly Claude Fable 5.1 measured
LMArena Text: Korean1517Not measuredOnly Claude Fable 5.1 measured
LMArena Text: French1523Not measuredOnly Claude Fable 5.1 measured
LMArena Text: Spanish1520Not measuredOnly Claude Fable 5.1 measured
LMArena Text: Russian15201479Claude Fable 5.1
LMArena Text: Polish1525Not measuredOnly Claude Fable 5.1 measured
LMArena Text: multi-turn14931466Claude Fable 5.1
LMArena Text: longer queries15241501Claude Fable 5.1
LMArena Text: writing and language15101470Claude Fable 5.1
LMArena Text: entertainment and media14971465Claude Fable 5.1
LMArena Vision: English13131268Claude Fable 5.1
LMArena Vision: Chinese1391Not measuredOnly Claude Fable 5.1 measured
LMArena Vision: reading text13271270Claude Fable 5.1
LMArena Vision: humor1318Not measuredOnly Claude Fable 5.1 measured
LMArena Vision: creative writing1330Not measuredOnly Claude Fable 5.1 measured
Neither model has a result on the other 14 boards here
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Image generation benchmarks for Claude Fable 5.1 and MiMo-V2.6-Pro
BenchmarkClaude Fable 5.1MiMo-V2.6-ProLeader
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

Claude Fable 5.1$0.035Fits in one request
MiMo-V2.6-Pro$0.0009Fits in one request

MiMo-V2.6-Pro costs less

Repository review

50K input + 3K output tokens

Claude Fable 5.1$0.650Fits in one request
MiMo-V2.6-Pro$0.024Fits in one request

MiMo-V2.6-Pro costs less

Agent loop

200K input + 10K output tokens

Claude Fable 5.1$2.50Fits in one request
MiMo-V2.6-Pro$0.096Fits in one request

MiMo-V2.6-Pro 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.

Specifications of Claude Fable 5.1 and MiMo-V2.6-Pro
SpecificationAnthropic Claude Fable 5.1Xiaomi MiMo-V2.6-Pro
MakerAnthropicXiaomi
WeightsNo public weights listedOpen weights
ReleasedSeptember 1, 2026September 21, 2026
Context window1M1.05M
Input $/Mtok$10.00$0.435
Output $/Mtok$50.00$0.87
Coding index84.265.4
Independent measurements behind it54
Cost per solved taskNot computableNot computable
SourceOpenRouter listingOpenRouter listing

Questions

Is Claude Fable 5.1 better than MiMo-V2.6-Pro for coding?

Pick Claude Fable 5.1 for coding: it scores 84.2 on the Vibe Coding Index against 65.4 for MiMo-V2.6-Pro. Pick MiMo-V2.6-Pro for output tokens 57.5x cheaper ($0.87 vs $50.00 per million) and a larger context window (1.05M against 1M tokens).

Which is cheaper, Claude Fable 5.1 or MiMo-V2.6-Pro?

Claude Fable 5.1 costs $10.00 per million input tokens and $50.00 per million output tokens; MiMo-V2.6-Pro costs $0.435 and $0.87. Cost per solved task is known for neither of them.

Which has the bigger context window, Claude Fable 5.1 or MiMo-V2.6-Pro?

MiMo-V2.6-Pro, with 1.05M tokens against 1M.

How many benchmarks is the Claude Fable 5.1 vs MiMo-V2.6-Pro comparison based on?

71 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 MiMo-V2.6-Pro's on 4. Where only one model has a result, the page says so instead of naming a winner.

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