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Claude Opus 4.8 vs MiMo-V2.6-Flash

Claude Opus 4.8 leads MiMo-V2.6-Flash on coding, 65.0 to 54.7 on the Vibe Coding Index, and MiMo-V2.6-Flash costs 89.3x less per output token ($0.28 vs $25.00 per million). Updated October 21, 2026; 56 benchmarks have a result for both.

Replace Claude Opus 4.8 Replace MiMo-V2.6-Flash
Claude Opus 4.8Anthropic
Coding
65.0
Overall
69.8
Output $/M
$25.00
44
MiMo-V2.6-FlashXiaomi
Coding
54.7
Overall
60.8
Output $/M
$0.28
11
vs boards won of 56 shared, 1 tied

Claude Opus 4.8 or MiMo-V2.6-Flash: which to pick

Pick Claude Opus 4.8 for coding: it scores 65.0 on the Vibe Coding Index against 54.7 for MiMo-V2.6-Flash.

Pick MiMo-V2.6-Flash for output tokens 89.3x cheaper ($0.28 vs $25.00 per million) and a larger context window (1.05M against 1M tokens).

Model AClaude Opus 4.8Anthropic65.0/1006 independent benchmarks$2.17 per solved taskModel BMiMo-V2.6-FlashXiaomi54.7/1003 independent benchmarksNo cost per solved task
Shared results
56
Claude Opus 4.8 only
74
MiMo-V2.6-Flash only
10
Like-for-like categories
7 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 Opus 4.8 65.0 from 6 benchmarks, MiMo-V2.6-Flash 54.7 from 3 benchmarks.
Widest category
Reasoning, 5.4 points apart on average over 6 shared benchmarks.
Widest single gap
LMArena Text: Japanese: Claude Opus 4.8 1442 against MiMo-V2.6-Flash 1359, 13.8 points apart on a 0 to 100 scale.
Output price
Claude Opus 4.8 $25.00 against MiMo-V2.6-Flash $0.28 per million output tokens, 89.3x apart.
Context window
Claude Opus 4.8 takes 1M tokens, MiMo-V2.6-Flash 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 Opus 4.8BarsMiMo-V2.6-FlashTies
Coding47
Intelligence10
Agentic work311 tie
Reasoning51
Math30
Knowledge50
General232
All shared boards44111 tie
CodingLike-for-likeSix of these boards feed the Vibe Coding Index47
Coding benchmarks for Claude Opus 4.8 and MiMo-V2.6-Flash
BenchmarkClaude Opus 4.8MiMo-V2.6-FlashLeader
LiveBench coding77.3%Not measuredOnly Claude Opus 4.8 measured
LMArena WebDev15561634MiMo-V2.6-Flash
AA Coding Index74.3Not measuredOnly Claude Opus 4.8 measured
LiveCodeBench (Vals AI)87.8%Not measuredOnly Claude Opus 4.8 measured
SWE-bench Verified (Vals AI)88.6%Not measuredOnly Claude Opus 4.8 measured
Terminal-Bench 4 (Vals AI)23.2%24.2%MiMo-V2.6-Flash
Vibe Code Bench (Vals AI)82.7%79.0%Claude Opus 4.8
Code migration (Vals AI)47.3%40.9%Claude Opus 4.8
ProgramBench (Vals AI)1.0%0.5%Claude Opus 4.8
IOI (Vals AI)Not measured47.7%Only MiMo-V2.6-Flash measured
Terminal-Bench 2.1 (Vals AI)71.9%76.4%MiMo-V2.6-Flash
SkillsBench (Vals AI)59.2%Not measuredOnly Claude Opus 4.8 measured
CyberBench (Vals AI)Not measured75.4%Only MiMo-V2.6-Flash measured
SciCode54.4%51.3%Claude Opus 4.8
Terminal-Bench Hard (Artificial Analysis run)58.3%Not measuredOnly Claude Opus 4.8 measured
FrontierCode46.5%Not measuredOnly Claude Opus 4.8 measured
GSO-Bench47.1%Not measuredOnly Claude Opus 4.8 measured
WeirdML82.9%Not measuredOnly Claude Opus 4.8 measured
ALE-BenchNot measured1244.2Only MiMo-V2.6-Flash measured
LMArena Text: coding14901499MiMo-V2.6-Flash
LMArena Text: software and IT14881497MiMo-V2.6-Flash
LMArena WebDev: React15571648MiMo-V2.6-Flash
LMArena WebDev: HTML15431641MiMo-V2.6-Flash
LMArena WebDev: from an imageNot measured1596Only MiMo-V2.6-Flash measured
SciCode12.3%Not measuredOnly Claude Opus 4.8 measured
Neither model has a result on the other 14 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index10
Intelligence benchmarks for Claude Opus 4.8 and MiMo-V2.6-Flash
BenchmarkClaude Opus 4.8MiMo-V2.6-FlashLeader
AA Intelligence Index41.837.9Claude Opus 4.8
Epoch Capabilities Index159.0Not measuredOnly Claude Opus 4.8 measured
Agentic workLike-for-likePublic boards, shown as published, kept out of the index31
Agentic work benchmarks for Claude Opus 4.8 and MiMo-V2.6-Flash
BenchmarkClaude Opus 4.8MiMo-V2.6-FlashLeader
AA Agentic Index41.9Not measuredOnly Claude Opus 4.8 measured
Design Arena: agents building web apps1233Not measuredOnly Claude Opus 4.8 measured
Design Arena: agents building full-stack apps1249Not measuredOnly Claude Opus 4.8 measured
Design Arena: agents building mobile apps1222Not measuredOnly Claude Opus 4.8 measured
Design Arena: agents building Android apps1232Not measuredOnly Claude Opus 4.8 measured
Design Arena: agents building Godot games1231Not measuredOnly Claude Opus 4.8 measured
Design Arena: agents building games1238Not measuredOnly Claude Opus 4.8 measured
Design Arena: HTML slides1221Not measuredOnly Claude Opus 4.8 measured
Design Arena: PowerPoint slides1227Not measuredOnly Claude Opus 4.8 measured
Design Arena: spreadsheets1270Not measuredOnly Claude Opus 4.8 measured
LiveBench research81.8%Not measuredOnly Claude Opus 4.8 measured
LiveBench browser96.0%Not measuredOnly Claude Opus 4.8 measured
LiveBench long agentic48.3%Not measuredOnly Claude Opus 4.8 measured
SREBench (Vals AI)Not measured4.2%Only MiMo-V2.6-Flash measured
Finance Agent (Vals AI)53.9%56.3%MiMo-V2.6-Flash
Tax Agent Bench (Vals AI)30.0%28.5%Claude Opus 4.8
Legal Research Bench (Vals AI)43.8%38.0%Claude Opus 4.8
Harvey's Legal Agent Benchmark (Vals AI)Not measured13.3%Only MiMo-V2.6-Flash measured
Excel Modeling Benchmark (Vals AI)69.4%65.5%Claude Opus 4.8
BioMysteryBench (Vals AI)Not measured69.3%Only MiMo-V2.6-Flash measured
Terminal-Bench-Science (Vals AI)4.3%4.3%Tie
Vals Science IndexNot measured31.7%Only MiMo-V2.6-Flash measured
Time Horizon Index (Vals AI)11.8%Not measuredOnly Claude Opus 4.8 measured
τ²-Bench Telecom94.4%Not measuredOnly Claude Opus 4.8 measured
APEX-Agents48.9%Not measuredOnly Claude Opus 4.8 measured
Remote Labor Index8.3%Not measuredOnly Claude Opus 4.8 measured
OSWorld 2.020.6%Not measuredOnly Claude Opus 4.8 measured
DeepResearch Bench50.2%Not measuredOnly Claude Opus 4.8 measured
PostTrainBench33.8%Not measuredOnly Claude Opus 4.8 measured
Vending-Bench 2$5,787Not measuredOnly Claude Opus 4.8 measured
LMArena Search1204Not measuredOnly Claude Opus 4.8 measured
Neither model has a result on the other 10 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index51
Reasoning benchmarks for Claude Opus 4.8 and MiMo-V2.6-Flash
BenchmarkClaude Opus 4.8MiMo-V2.6-FlashLeader
GPQA Diamond92.4%Not measuredOnly Claude Opus 4.8 measured
LiveBench reasoning89.2%Not measuredOnly Claude Opus 4.8 measured
MysteryMechanism (Vals AI)Not measured21.6%Only MiMo-V2.6-Flash measured
MMMU Pro (Vals AI)86.6%Not measuredOnly Claude Opus 4.8 measured
GPQA Diamond (Artificial Analysis run)92.0%Not measuredOnly Claude Opus 4.8 measured
Humanity's Last Exam (Artificial Analysis run)48.7%35.1%Claude Opus 4.8
GPQA Diamond (Epoch AI run)91.0%Not measuredOnly Claude Opus 4.8 measured
ARC-AGI92.5%Not measuredOnly Claude Opus 4.8 measured
ARC-AGI-272.1%Not measuredOnly Claude Opus 4.8 measured
SimpleBench64.8%Not measuredOnly Claude Opus 4.8 measured
Chess puzzles52.0%Not measuredOnly Claude Opus 4.8 measured
Mystery game puzzles36.0%Not measuredOnly Claude Opus 4.8 measured
EBR-bench28.6%Not measuredOnly Claude Opus 4.8 measured
LMArena Text: hard prompts14821475Claude Opus 4.8
LMArena Text: expert15031496Claude Opus 4.8
LMArena Text: hard prompts in English14871493MiMo-V2.6-Flash
LMArena Vision: diagrams13151276Claude Opus 4.8
LMArena Vision: homework13371283Claude Opus 4.8
Kagi LLM Benchmark88.8%Not measuredOnly Claude Opus 4.8 measured
Neither model has a result on the other 3 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index30
Math benchmarks for Claude Opus 4.8 and MiMo-V2.6-Flash
BenchmarkClaude Opus 4.8MiMo-V2.6-FlashLeader
OTIS Mock AIME98.3%Not measuredOnly Claude Opus 4.8 measured
FrontierMath, tiers 1 to 380.0%Not measuredOnly Claude Opus 4.8 measured
FrontierMath, tier 456.1%Not measuredOnly Claude Opus 4.8 measured
ProofBench69.0%63.0%Claude Opus 4.8
LMArena Text: math14861476Claude Opus 4.8
LMArena Text: mathematical work14971478Claude Opus 4.8
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 Opus 4.8 and MiMo-V2.6-Flash
BenchmarkClaude Opus 4.8MiMo-V2.6-FlashLeader
MMLU Pro89.6%Not measuredOnly Claude Opus 4.8 measured
LegalBench (Vals AI)83.6%Not measuredOnly Claude Opus 4.8 measured
CorpFin (Vals AI)66.7%Not measuredOnly Claude Opus 4.8 measured
TaxEval (Vals AI)75.6%Not measuredOnly Claude Opus 4.8 measured
MortgageTax (Vals AI)69.9%Not measuredOnly Claude Opus 4.8 measured
MedCode (Vals AI)53.2%41.1%Claude Opus 4.8
SimpleQA Verified53.0%Not measuredOnly Claude Opus 4.8 measured
LMArena Text: science14771462Claude Opus 4.8
LMArena Text: medicine and healthcare14641439Claude Opus 4.8
LMArena Text: legal and government14771441Claude Opus 4.8
LMArena Text: business and finance14581454Claude Opus 4.8
FACTS Benchmark Suite53.5%Not measuredOnly Claude Opus 4.8 measured
Neither model has a result on the other 6 boards here
Web designDirectional onlyPublic boards, shown as published, kept out of the index9 boards, none shared
Web design benchmarks for Claude Opus 4.8 and MiMo-V2.6-Flash
BenchmarkClaude Opus 4.8MiMo-V2.6-FlashLeader
Design Arena: websites1259Not measuredOnly Claude Opus 4.8 measured
Design Arena: UI components1257Not measuredOnly Claude Opus 4.8 measured
Design Arena: game dev1264Not measuredOnly Claude Opus 4.8 measured
Design Arena: data viz1240Not measuredOnly Claude Opus 4.8 measured
Design Arena: 3D1223Not measuredOnly Claude Opus 4.8 measured
Design Arena: all code categories1255Not measuredOnly Claude Opus 4.8 measured
Design Arena: SVG1194Not measuredOnly Claude Opus 4.8 measured
Design Arena: ASCII art1277Not measuredOnly Claude Opus 4.8 measured
LiveBench design78.8%Not measuredOnly Claude Opus 4.8 measured
GeneralLike-for-likePublic boards, shown as published, kept out of the index232
General benchmarks for Claude Opus 4.8 and MiMo-V2.6-Flash
BenchmarkClaude Opus 4.8MiMo-V2.6-FlashLeader
Vals IndexNot measured54.8%Only MiMo-V2.6-Flash measured
LiveBench data analysis66.0%Not measuredOnly Claude Opus 4.8 measured
Public Benefits Bench (Vals AI)68.1%67.6%Claude Opus 4.8
SAGE (Vals AI)54.8%43.5%Claude Opus 4.8
MedScribe (Vals AI)85.8%85.3%Claude Opus 4.8
Vals Multimodal Index70.9%Not measuredOnly Claude Opus 4.8 measured
IFBench62.2%Not measuredOnly Claude Opus 4.8 measured
Long context reasoning (AA-LCR)77.7%74.3%Claude Opus 4.8
DTBench94.9%Not measuredOnly Claude Opus 4.8 measured
LMCA57.5%Not measuredOnly Claude Opus 4.8 measured
Surface Evolver Bench87.5%Not measuredOnly Claude Opus 4.8 measured
Furniture assembly42.5%Not measuredOnly Claude Opus 4.8 measured
LMArena Text14611453Claude Opus 4.8
LMArena Text: instruction following14761452Claude Opus 4.8
LMArena Text: creative writing14541403Claude Opus 4.8
LMArena Vision12941256Claude Opus 4.8
LMArena Text: English14681476MiMo-V2.6-Flash
LMArena Text: non-English14501431Claude Opus 4.8
LMArena Text: Chinese15061509MiMo-V2.6-Flash
LMArena Text: German14721458Claude Opus 4.8
LMArena Text: Japanese14421359Claude Opus 4.8
LMArena Text: Korean14311425Claude Opus 4.8
LMArena Text: French14811480Claude Opus 4.8
LMArena Text: Spanish14651453Claude Opus 4.8
LMArena Text: Russian14741409Claude Opus 4.8
LMArena Text: Polish14591455Claude Opus 4.8
LMArena Text: multi-turn14761447Claude Opus 4.8
LMArena Text: longer queries14831459Claude Opus 4.8
LMArena Text: writing and language14611424Claude Opus 4.8
LMArena Text: entertainment and media14401415Claude Opus 4.8
LMArena Vision: English12931269Claude Opus 4.8
LMArena Vision: Chinese1346Not measuredOnly Claude Opus 4.8 measured
LMArena Vision: reading text13031270Claude Opus 4.8
LMArena Vision: humor1282Not measuredOnly Claude Opus 4.8 measured
LMArena Vision: creative writing13011231Claude Opus 4.8
LMArena Document1475Not measuredOnly Claude Opus 4.8 measured
Neither model has a result on the other 10 boards here
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Image generation benchmarks for Claude Opus 4.8 and MiMo-V2.6-Flash
BenchmarkClaude Opus 4.8MiMo-V2.6-FlashLeader
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 Opus 4.8$0.018Fits in one request
MiMo-V2.6-Flash$0.0003Fits in one request

MiMo-V2.6-Flash costs less

Repository review

50K input + 3K output tokens

Claude Opus 4.8$0.325Fits in one request
MiMo-V2.6-Flash$0.0078Fits in one request

MiMo-V2.6-Flash costs less

Agent loop

200K input + 10K output tokens

Claude Opus 4.8$1.25Fits in one request
MiMo-V2.6-Flash$0.031Fits in one request

MiMo-V2.6-Flash 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 Opus 4.8 and MiMo-V2.6-Flash
SpecificationAnthropic Claude Opus 4.8Xiaomi MiMo-V2.6-Flash
MakerAnthropicXiaomi
WeightsNo public weights listedOpen weights
ReleasedMay 27, 2026September 21, 2026
Context window1M1.05M
Input $/Mtok$5.00$0.14
Output $/Mtok$25.00$0.28
Coding index65.054.7
Independent measurements behind it63
Cost per solved task$2.17Not computable
SourceOpenRouter listingOpenRouter listing

Questions

Is Claude Opus 4.8 better than MiMo-V2.6-Flash for coding?

Pick Claude Opus 4.8 for coding: it scores 65.0 on the Vibe Coding Index against 54.7 for MiMo-V2.6-Flash. Pick MiMo-V2.6-Flash for output tokens 89.3x cheaper ($0.28 vs $25.00 per million) and a larger context window (1.05M against 1M tokens).

Which is cheaper, Claude Opus 4.8 or MiMo-V2.6-Flash?

Claude Opus 4.8 costs $5.00 per million input tokens and $25.00 per million output tokens; MiMo-V2.6-Flash costs $0.14 and $0.28. Cost per solved task is known for Claude Opus 4.8 only.

Which has the bigger context window, Claude Opus 4.8 or MiMo-V2.6-Flash?

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

How many benchmarks is the Claude Opus 4.8 vs MiMo-V2.6-Flash comparison based on?

56 benchmarks have a result for both models as of October 21, 2026. Claude Opus 4.8's coding index rests on 6 independent benchmarks and MiMo-V2.6-Flash's on 3. Where only one model has a result, the page says so instead of naming a winner.

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