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Claude Opus 5 vs MiMo-V2.5

Claude Opus 5 leads MiMo-V2.5 on coding, 83.0 to 50.0 on the Vibe Coding Index, and MiMo-V2.5 costs 74.4x less per output token ($0.336 vs $25.00 per million). Updated October 21, 2026; 76 benchmarks have a result for both.

Replace Claude Opus 5 Replace MiMo-V2.5
Claude Opus 5Anthropic
Coding
83.0
Overall
81.6
Output $/M
$25.00
76
MiMo-V2.5Xiaomi
Coding
50.0
Overall
50.7
Output $/M
$0.336
0
vs boards won of 76 shared

Claude Opus 5 or MiMo-V2.5: which to pick

Pick Claude Opus 5 for coding: it scores 83.0 on the Vibe Coding Index against 50.0 for MiMo-V2.5.

Pick MiMo-V2.5 for output tokens 74.4x cheaper ($0.336 vs $25.00 per million) and a lower cost per solved task ($0.01 against $1.33).

Model AClaude Opus 5Anthropic83.0/1006 independent benchmarks$1.33 per solved taskModel BMiMo-V2.5Xiaomi50.0/1003 independent benchmarks$0.01 per solved task
Shared results
76
Claude Opus 5 only
55
MiMo-V2.5 only
4
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 Opus 5 83.0 from 6 benchmarks, MiMo-V2.5 50.0 from 3 benchmarks.
Widest category
Math, 38.2 points apart on average over 3 shared benchmarks.
Widest single gap
ProofBench: Claude Opus 5 99.0% against MiMo-V2.5 16.0%, 83.0 points apart on a 0 to 100 scale.
Output price
Claude Opus 5 $25.00 against MiMo-V2.5 $0.336 per million output tokens, 74.4x apart.
Context window
Claude Opus 5 takes 1M tokens, MiMo-V2.5 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 5BarsMiMo-V2.5Ties
Coding130
Intelligence10
Agentic work50
Reasoning90
Math30
Knowledge100
Web design80
General270
All shared boards760
CodingLike-for-likeSix of these boards feed the Vibe Coding Index130
Coding benchmarks for Claude Opus 5 and MiMo-V2.5
BenchmarkClaude Opus 5MiMo-V2.5Leader
LiveBench coding90.8%Not measuredOnly Claude Opus 5 measured
LMArena WebDev16891438Claude Opus 5
AA Coding Index78.056.8Claude Opus 5
LiveCodeBench (Vals AI)89.0%81.5%Claude Opus 5
SWE-bench Verified (Vals AI)97.0%71.0%Claude Opus 5
Terminal-Bench 4 (Vals AI)53.5%Not measuredOnly Claude Opus 5 measured
Vibe Code Bench (Vals AI)88.4%42.2%Claude Opus 5
Code migration (Vals AI)57.5%14.2%Claude Opus 5
ProgramBench (Vals AI)3.0%Not measuredOnly Claude Opus 5 measured
IOI (Vals AI)84.3%Not measuredOnly Claude Opus 5 measured
Terminal-Bench 2.1 (Vals AI)84.6%60.7%Claude Opus 5
Vibe Code Bench 1-100 (Vals AI)28.5%Not measuredOnly Claude Opus 5 measured
SkillsBench (Vals AI)60.4%Not measuredOnly Claude Opus 5 measured
CyberBench (Vals AI)65.4%Not measuredOnly Claude Opus 5 measured
SciCode56.4%43.9%Claude Opus 5
Terminal-Bench Hard (Artificial Analysis run)Not measured41.7%Only MiMo-V2.5 measured
FrontierCode53.4%Not measuredOnly Claude Opus 5 measured
FrontierSWE52.0%Not measuredOnly Claude Opus 5 measured
WeirdML91.8%Not measuredOnly Claude Opus 5 measured
ALE-Bench2164.6514.0Claude Opus 5
LMArena Text: coding15331469Claude Opus 5
LMArena Text: software and IT15271463Claude Opus 5
LMArena WebDev: React17111425Claude Opus 5
LMArena WebDev: HTML16801429Claude Opus 5
LMArena WebDev: from an image1662Not measuredOnly Claude Opus 5 measured
SciCode13.8%Not measuredOnly Claude Opus 5 measured
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 Opus 5 and MiMo-V2.5
BenchmarkClaude Opus 5MiMo-V2.5Leader
AA Intelligence Index50.821.8Claude Opus 5
Epoch Capabilities Index163.9Not measuredOnly Claude Opus 5 measured
Agentic workLike-for-likePublic boards, shown as published, kept out of the index50
Agentic work benchmarks for Claude Opus 5 and MiMo-V2.5
BenchmarkClaude Opus 5MiMo-V2.5Leader
AA Agentic Index56.515.8Claude Opus 5
Design Arena: agents building web apps1266Not measuredOnly Claude Opus 5 measured
Design Arena: agents building full-stack apps1306Not measuredOnly Claude Opus 5 measured
Design Arena: agents building mobile apps1348Not measuredOnly Claude Opus 5 measured
Design Arena: agents building Android apps1254Not measuredOnly Claude Opus 5 measured
Design Arena: agents building Godot games1279Not measuredOnly Claude Opus 5 measured
Design Arena: agents building games1261Not measuredOnly Claude Opus 5 measured
Design Arena: PowerPoint slides1265Not measuredOnly Claude Opus 5 measured
LiveBench research88.9%Not measuredOnly Claude Opus 5 measured
LiveBench browser84.0%Not measuredOnly Claude Opus 5 measured
LiveBench long agentic62.1%Not measuredOnly Claude Opus 5 measured
SREBench (Vals AI)12.2%Not measuredOnly Claude Opus 5 measured
Finance Agent (Vals AI)58.6%36.7%Claude Opus 5
Tax Agent Bench (Vals AI)45.5%7.8%Claude Opus 5
Legal Research Bench (Vals AI)55.3%9.1%Claude Opus 5
Excel Modeling Benchmark (Vals AI)73.6%55.1%Claude Opus 5
BioMysteryBench (Vals AI)79.3%Not measuredOnly Claude Opus 5 measured
Terminal-Bench-Science (Vals AI)27.1%Not measuredOnly Claude Opus 5 measured
Vals Science Index47.9%Not measuredOnly Claude Opus 5 measured
Time Horizon Index (Vals AI)18.8%Not measuredOnly Claude Opus 5 measured
CUA-bench (Vals AI)9.0%Not measuredOnly Claude Opus 5 measured
τ²-Bench TelecomNot measured90.6%Only MiMo-V2.5 measured
APEX-Agents65.8%Not measuredOnly Claude Opus 5 measured
OSWorld 2.031.4%Not measuredOnly Claude Opus 5 measured
BALROG63.4%Not measuredOnly Claude Opus 5 measured
PostTrainBench35.0%Not measuredOnly Claude Opus 5 measured
Vending-Bench 2$11,182Not measuredOnly Claude Opus 5 measured
LMArena Search1242Not measuredOnly Claude Opus 5 measured
Neither model has a result on the other 13 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index90
Reasoning benchmarks for Claude Opus 5 and MiMo-V2.5
BenchmarkClaude Opus 5MiMo-V2.5Leader
GPQA Diamond93.4%81.6%Claude Opus 5
LiveBench reasoning91.2%Not measuredOnly Claude Opus 5 measured
MysteryMechanism (Vals AI)37.4%Not measuredOnly Claude Opus 5 measured
MMMU Pro (Vals AI)89.9%80.0%Claude Opus 5
GPQA Diamond (Artificial Analysis run)93.7%84.9%Claude Opus 5
Humanity's Last Exam (Artificial Analysis run)54.9%27.2%Claude Opus 5
GPQA Diamond (Epoch AI run)93.9%Not measuredOnly Claude Opus 5 measured
ARC-AGI97.5%Not measuredOnly Claude Opus 5 measured
ARC-AGI-290.4%Not measuredOnly Claude Opus 5 measured
SimpleBench80.6%Not measuredOnly Claude Opus 5 measured
Chess puzzles43.0%Not measuredOnly Claude Opus 5 measured
Mystery game puzzles59.0%Not measuredOnly Claude Opus 5 measured
EBR-bench45.7%Not measuredOnly Claude Opus 5 measured
LMArena Text: hard prompts15271450Claude Opus 5
LMArena Text: expert15541459Claude Opus 5
LMArena Text: hard prompts in English15231461Claude Opus 5
LMArena Vision: diagrams13481269Claude Opus 5
LMArena Vision: homework13381262Claude Opus 5
Neither model has a result on the other 4 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index30
Math benchmarks for Claude Opus 5 and MiMo-V2.5
BenchmarkClaude Opus 5MiMo-V2.5Leader
OTIS Mock AIME98.9%Not measuredOnly Claude Opus 5 measured
FrontierMath, tiers 1 to 385.6%Not measuredOnly Claude Opus 5 measured
FrontierMath, tier 473.2%Not measuredOnly Claude Opus 5 measured
ProofBench99.0%16.0%Claude Opus 5
LMArena Text: math15331436Claude Opus 5
LMArena Text: mathematical work15441451Claude Opus 5
Neither model has a result on the other 7 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index100
Knowledge benchmarks for Claude Opus 5 and MiMo-V2.5
BenchmarkClaude Opus 5MiMo-V2.5Leader
MMLU Pro91.6%82.9%Claude Opus 5
LegalBench (Vals AI)87.0%78.9%Claude Opus 5
CorpFin (Vals AI)73.2%59.9%Claude Opus 5
TaxEval (Vals AI)75.1%71.8%Claude Opus 5
MortgageTax (Vals AI)72.1%59.3%Claude Opus 5
MedCode (Vals AI)63.6%31.9%Claude Opus 5
SimpleQA Verified59.9%Not measuredOnly Claude Opus 5 measured
LMArena Text: science15311440Claude Opus 5
LMArena Text: medicine and healthcare15251432Claude Opus 5
LMArena Text: legal and government15301425Claude Opus 5
LMArena Text: business and finance15011432Claude Opus 5
Neither model has a result on the other 7 boards here
Web designLike-for-likePublic boards, shown as published, kept out of the index80
Web design benchmarks for Claude Opus 5 and MiMo-V2.5
BenchmarkClaude Opus 5MiMo-V2.5Leader
Design Arena: websites13091266Claude Opus 5
Design Arena: UI components13491258Claude Opus 5
Design Arena: game dev13381249Claude Opus 5
Design Arena: data viz13291249Claude Opus 5
Design Arena: 3D13351216Claude Opus 5
Design Arena: all code categories13241260Claude Opus 5
Design Arena: SVG13111178Claude Opus 5
Design Arena: ASCII art13521140Claude Opus 5
LiveBench design83.0%Not measuredOnly Claude Opus 5 measured
GeneralLike-for-likePublic boards, shown as published, kept out of the index270
General benchmarks for Claude Opus 5 and MiMo-V2.5
BenchmarkClaude Opus 5MiMo-V2.5Leader
LiveBench data analysis74.6%Not measuredOnly Claude Opus 5 measured
Public Benefits Bench (Vals AI)76.9%Not measuredOnly Claude Opus 5 measured
SAGE (Vals AI)49.4%43.3%Claude Opus 5
MedScribe (Vals AI)91.0%72.2%Claude Opus 5
Vals Multimodal Index73.9%52.8%Claude Opus 5
IFBenchNot measured67.1%Only MiMo-V2.5 measured
Long context reasoning (AA-LCR)82.0%73.0%Claude Opus 5
DTBench97.9%Not measuredOnly Claude Opus 5 measured
LMCA64.5%Not measuredOnly Claude Opus 5 measured
Furniture assembly60.8%Not measuredOnly Claude Opus 5 measured
LMArena Text15091428Claude Opus 5
LMArena Text: instruction following15181435Claude Opus 5
LMArena Text: creative writing14931393Claude Opus 5
LMArena Vision13201247Claude Opus 5
LMArena Text: English15081447Claude Opus 5
LMArena Text: non-English15021405Claude Opus 5
LMArena Text: Chinese15731469Claude Opus 5
LMArena Text: German15271421Claude Opus 5
LMArena Text: Japanese15201306Claude Opus 5
LMArena Text: Korean15171361Claude Opus 5
LMArena Text: French15191448Claude Opus 5
LMArena Text: Spanish15231414Claude Opus 5
LMArena Text: Russian15071396Claude Opus 5
LMArena Text: Polish15221413Claude Opus 5
LMArena Text: multi-turn15001445Claude Opus 5
LMArena Text: longer queries15171445Claude Opus 5
LMArena Text: writing and language14991409Claude Opus 5
LMArena Text: entertainment and media14811399Claude Opus 5
LMArena Vision: English13151259Claude Opus 5
LMArena Vision: Chinese14001326Claude Opus 5
LMArena Vision: reading text13291256Claude Opus 5
LMArena Vision: humor12931226Claude Opus 5
LMArena Vision: recognizing thingsNot measured1189Only MiMo-V2.5 measured
LMArena Vision: creative writing13131230Claude Opus 5
LMArena Document1516Not measuredOnly Claude Opus 5 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
Image generation benchmarks for Claude Opus 5 and MiMo-V2.5
BenchmarkClaude Opus 5MiMo-V2.5Leader
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 5$0.018Fits in one request
MiMo-V2.5$0.0003Fits in one request

MiMo-V2.5 costs less

Repository review

50K input + 3K output tokens

Claude Opus 5$0.325Fits in one request
MiMo-V2.5$0.0094Fits in one request

MiMo-V2.5 costs less

Agent loop

200K input + 10K output tokens

Claude Opus 5$1.25Fits in one request
MiMo-V2.5$0.037Fits in one request

MiMo-V2.5 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 5 and MiMo-V2.5
SpecificationAnthropic Claude Opus 5Xiaomi MiMo-V2.5
MakerAnthropicXiaomi
WeightsNo public weights listedOpen weights
ReleasedJuly 24, 2026April 22, 2026
Context window1M1.05M
Input $/Mtok$5.00$0.168
Output $/Mtok$25.00$0.336
Coding index83.050.0
Independent measurements behind it63
Cost per solved task$1.33$0.01
SourceOpenRouter listingOpenRouter listing

Questions

Is Claude Opus 5 better than MiMo-V2.5 for coding?

Pick Claude Opus 5 for coding: it scores 83.0 on the Vibe Coding Index against 50.0 for MiMo-V2.5. Pick MiMo-V2.5 for output tokens 74.4x cheaper ($0.336 vs $25.00 per million) and a lower cost per solved task ($0.01 against $1.33).

Which is cheaper, Claude Opus 5 or MiMo-V2.5?

Claude Opus 5 costs $5.00 per million input tokens and $25.00 per million output tokens; MiMo-V2.5 costs $0.168 and $0.336. Per solved SWE-bench Verified task, Claude Opus 5 costs $1.33 and MiMo-V2.5 $0.01.

Which has the bigger context window, Claude Opus 5 or MiMo-V2.5?

MiMo-V2.5, with 1.05M tokens against 1M.

How many benchmarks is the Claude Opus 5 vs MiMo-V2.5 comparison based on?

76 benchmarks have a result for both models as of October 21, 2026. Claude Opus 5's coding index rests on 6 independent benchmarks and MiMo-V2.5's on 3. Where only one model has a result, the page says so instead of naming a winner.

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<iframe src="https://llmbenchmark.ai/embed/compare/claude-opus-5-vs-xiaomi-mimo-v2-5" title="Claude Opus 5 vs MiMo-V2.5, LLMBenchmark.ai" width="100%" height="360" style="border:0;max-width:100%" loading="lazy"></iframe>
<p style="font:13px/1.4 sans-serif;margin:6px 0 0">Source: <a href="https://llmbenchmark.ai/compare/claude-opus-5-vs-xiaomi-mimo-v2-5">LLMBenchmark.ai, Claude Opus 5 vs MiMo-V2.5</a></p>