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Claude Opus 5.5 vs Mimo v2 Pro

Full profiles: Claude Opus 5.5 (Anthropic) and Mimo v2 Pro (Xiaomi): every benchmark, price and rank.

Updated · Data from 12 sources

As of 9 Nov 2026, Claude Opus 5.5 is ahead of Mimo v2 Pro on quality (68.9 vs 59.1 on the BenchLeader Index). Choose Claude Opus 5.5 for coding (80 vs 52), maths (74 vs 63), and reasoning (72 vs 64); choose Mimo v2 Pro for agents & tools (69 vs 63).

Key facts (as of 9 Nov 2026)

  • Claude Opus 5.5 scores 68.9 on the BenchLeader Index and Mimo v2 Pro scores 59.1 (BenchLeader, 9 Nov 2026).
  • Claude Opus 5.5 costs $8.00 per 1M tokens blended (list price, 9 Nov 2026).
  • Of the 5 benchmarks both models have, Claude Opus 5.5 leads 5 (BenchLeader, 9 Nov 2026).
  • On Arena WebDev, Claude Opus 5.5 is rated 1818 and Mimo v2 Pro 1434 (LMArena, as published by 9 Nov 2026).
Claude Opus 5.5 benchmarks max Anthropic Mimo v2 Pro benchmarks XiaomiAdd a third model

Which to pick for…

The pick's numbers come first. Category scores on the BenchLeader scale (50 is the average model, 15 points one standard deviation). High confidence means a lead of half a standard deviation or more; under one point is called either.

Use casePickWhyConfidence
CodingClaude Opus 5.580 vs 52 category score; Arena WebDev 1818 vs 1434High
Agents & tool useMimo v2 Pro69 vs 63 category scoreMedium
MathsClaude Opus 5.574 vs 63 category scoreHigh
ReasoningClaude Opus 5.572 vs 64 category score; Humanity's Last Exam (AA) 61.4% vs 30.4%High
Long documentsClaude Opus 5.567 vs 59 category score; AA-LCR v1.1 84.7% vs 68.3%High
Chat quality (human preference)–Only Mimo v2 Pro has an Arena rating (63 category score)Not comparable
High volume on a budgetNeither flagshipA smaller model is usually the better fit: Cheapest good LLMs, Fastest LLMs–

Key differences

  • Claude Opus 5.5 (max) leads on quality: 68.9 vs 59.1.
  • Claude Opus 5.5 (max) is stronger in coding, knowledge, long context, maths, multimodal, reasoning.
  • Mimo v2 Pro is stronger in agents & tools, human preference, instruction following.

At a glance

SpecClaude Opus 5.5Mimo v2 Pro
DeveloperAnthropicXiaomi
Released22 Sep 202618 Mar 2026
Context window (tokens)1,000,0001,000,000
Max output (tokens)128,000 (up to 300K on the Message Batches API (beta))–
Input typestext, image–
Reasoning effort settingslow, medium, high, xhigh, max–
Compared atClaude Opus 5.5 (max)Mimo v2 Pro
Open weightsNoNo
Price in / out / cached input per 1M$4.00 / $20.00 / $0.200–
API model IDclaude-opus-5-5–
Where to use itClaude API, Amazon Bedrock, Google Cloud, Microsoft Foundry–

Limits, availability and announced prices from the vendors' own pages: platform.claude.com (checked 20 Oct 2026). Everything else is from the day's data.

Category by category

Category scores on the BenchLeader scale: 50 is the average evaluated model, 15 points is one standard deviation. A gap under one point is called level.

CategoryClaude Opus 5.5 (max)Mimo v2 ProLeader
Reasoning72.363.8Claude Opus 5.5
Coding80.452.1Claude Opus 5.5
Agents & tools62.769.4Mimo v2 Pro
Maths74.062.9Claude Opus 5.5
Knowledge73.7–not comparable
Instruction following–67.9not comparable
Human preference–63.2not comparable
Multimodal70.3–not comparable
Long context67.158.6Claude Opus 5.5

On one chart

Each domain on the index's own scale, where 50 is an average model. Click a domain to see the benchmarks behind it. Pick up to 5 models from the list.

2550 avg75ReasoningCodingAgents & toolsMathsLong contextClaude Opus 5.5, Reasoning: 72.3Claude Opus 5.5, Coding: 80.4Claude Opus 5.5, Agents & tools: 62.7Claude Opus 5.5, Maths: 74.0Claude Opus 5.5, Long context: 67.1Mimo v2 Pro, Reasoning: 63.8Mimo v2 Pro, Coding: 52.1Mimo v2 Pro, Agents & tools: 69.4Mimo v2 Pro, Maths: 62.9Mimo v2 Pro, Long context: 58.6

Not drawn, measured for fewer than two of these models: Knowledge, Instruction following, Multimodal, Human preference.

ModelIndex

Where sources disagree

Across the 5 benchmarks both have, Claude Opus 5.5 leads 5, Mimo v2 Pro leads 0. Every overall index that rates both puts Claude Opus 5.5 ahead.

Overall indexClaude Opus 5.5 (max)Mimo v2 ProLeader
BenchLeader Index68.959.1Claude Opus 5.5
Arena Text1506†1448Claude Opus 5.5

Each publisher runs its own tasks, harnesses and effort settings, so their overall verdicts can differ; BenchLeader reconciles them on one scale. † measured at another effort setting of the same model (the publisher did not test the one compared here).

Price, speed and latency

List prices blended at three input tokens per output token. Per-task prices use the token counts on the methodology page. Cost, tokens and time per benchmark task are measured: Artificial Analysis’ averages over its whole Intelligence Index run.

MeasureClaude Opus 5.5 (max)Mimo v2 Pro
Blended price per 1M tokens$8.00–
Input / output per 1M$4.00 / $20.00– / –
Cached input per 1M$0.200–
Price per task: chat reply$0.0076–
Price per task: summarize a 30-page report$0.060–
Price per task: code edit$0.054–
Price per task: agentic coding session$0.320–
Price per task: structured extraction$0.012–
Agentic coding session, input mostly cached$0.149–
Cost per benchmark task (AA Index)$10.04–
Output tokens per task (AA Index)173k–
Of which reasoning120k–
Time per task (AA Index)25 min–
Output speed115 tok/s–
Time to first answer380.6 s–
Time to a complete answer771.1 s–

Each model is compared at its best-ranked reasoning-effort setting. Claude Opus 5.5 (max) scores 68.9 and takes 381 s to its first answer token; Claude Opus 5.5 (xhigh) scores 65.5 in 84 s, Claude Opus 5.5 (high) scores 65.4 in 28 s. Mimo v2 Pro scores 59.1. Higher effort means more thinking before the answer: better scores, longer waits and more tokens billed. How reasoning effort changes scores and cost.

Every benchmark

139 benchmarks, grouped by category; each name links to the board and its leaders. † measured at another effort setting of the same model, shown for reference and not counted as a win.

MetricPublisherClaude Opus 5.5 (max)Mimo v2 Pro
BenchLeader IndexBenchLeader68.959.1
Agents & tools scoreBenchLeader62.769.4
Coding scoreBenchLeader80.452.1
Knowledge scoreBenchLeader73.7–
Long context scoreBenchLeader67.158.6
Maths scoreBenchLeader74.062.9
Multimodal scoreBenchLeader70.3–
Reasoning scoreBenchLeader72.363.8
Human preference scoreBenchLeader–63.2
Instruction following scoreBenchLeader–67.9
Blended price $/MBenchLeader$8.00–
Output speedBenchLeader115 tok/s–
Time to first answerBenchLeader380.6 s–
Context windowBenchLeader1,000,000 tokens1,000,000 tokens
Reasoning
GPQA DiamondEpoch AI Benchmarking Hub90.6%–
Arena Hard PromptsArena (LMArena)1530†1476
LiveBench 2.0 ReasoningLiveBench92.2%†–
LiveBench 1.0 ReasoningLiveBench92.2%–
GPQA Diamond (AA)Artificial Analysis–87.0%
Humanity's Last Exam (AA)Artificial Analysis61.4%30.4%
HLE-Diamond (AA)Artificial Analysis67.9%–
ARC-AGI-1ARC Prize97.5%–
ARC-AGI-2ARC Prize91.7%–
CritPtArtificial Analysis31.7%0.3%
CritPt v2 hard subset (AA)Artificial Analysis68.0%–
MysteryMechanismVals AI49.5%†–
Chess PuzzlesEpoch AI Benchmarking Hub67.0%–
Mystery Game PuzzlesEpoch AI Benchmarking Hub71.0%–
CL-benchEpoch AI Benchmarking Hub–15.7%
CL-bench LifeEpoch AI Benchmarking Hub–6.9%
LMCAEpoch AI Benchmarking Hub68.2%–
DTBenchEpoch AI Benchmarking Hub98.9%–
Coding
SciCodeSciCode66.9%–
FrontierCodeCognition54.6%†–
Arena CodingArena (LMArena)1546†1503
Arena WebDevArena (LMArena)18181434
LiveBench 2.0 CodingLiveBench87.1%†–
LiveBench 1.0 CodingLiveBench89.3%–
IOIVals AI95.1%†–
Show all 139 benchmarks
MetricPublisherClaude Opus 5.5 (max)Mimo v2 Pro
Coding
Code MigrationVals AI66.7%†–
Code Migration v1.1Vals AI81.0%†–
ProgramBenchVals AI18.5%†–
SWE-bench MultimodalVals AI70.2%†–
Vibe Code Bench 1-100Vals AI30.4%†–
Vibe Code Bench v1.1Vals AI90.3%†–
MirrorCodeEpoch AI Benchmarking Hub78.9%†–
CursorBenchCursor57.8%–
ALE-BenchEpoch AI Benchmarking Hub2147.4†785.2
FrontierSWEEpoch AI Benchmarking Hub62.3%–
Terminal-Bench 4.0 (AA)Artificial Analysis59.6%–
Startrise FrontendStartrise71.1%†–
GameBench 2 OverallDuelLab GameBench 287.6†–
GameBench 2 by reasoning settingDuelLab GameBench 294.8†–
Design Arena WebsiteDesign Arena1325†–
FrontierCode 1.1 (AA)Artificial Analysis52.2%–
FrontierCode 2.0 (AA)Artificial Analysis46.4%–
Agents & tools
Terminal-BenchTerminal-Bench65.8%–
Remote Labor IndexScale AI / CAIS21.3%†–
APEX-AgentsMercor73.5%–
Arena AgentArena (LMArena)20–
LiveBench Long AgenticLiveBench72.8%†–
LiveBench BrowserLiveBench88.4%†–
LiveBench Agentic CodingLiveBench71.7%–
Terminal-Bench HardArtificial Analysis–40.9%
τ²-Bench Telecom (AA)Artificial Analysis–95.0%
Terminal-Bench 2.1 (Vals)Vals AI87.6%†–
MCP AtlasScale AI SEAL85.4%†–
HiL-BenchScale AI SEAL59.0%†–
GDPval-AA v2.1, normalised scoreArtificial Analysis68.3%–
GDPval-AA v2.1Artificial Analysis1866–
ITBench SRE (AA)Artificial Analysis38.2%–
Analyst Agent (AA)Artificial Analysis56.3%–
CUA-benchVals AI14.0%–
CyberBenchVals AI55.4%†–
Finance Agent v2Vals AI58.6%†–
Finance Agent v2.1Vals AI67.8%†–
Harvey's Legal Agent Benchmark v1.1Vals AI9.2%†–
Harvey's Legal Agent Benchmark v1Vals AI3.8%†–
Legal Research BenchVals AI50.5%†–
Robo-benchVals AI14.6%–
SREBenchVals AI33.6%†–
Tax Agent BenchVals AI44.5%†–
Terminal-Bench 4.0 (Vals)Vals AI65.2%†–
Terminal-Bench ScienceVals AI47.1%†–
Time Horizon Index: KSPVals AI91.3%†–
Arena SearchArena (LMArena)1214†–
Vending-Bench 2Andon Labs9235.3†–
AutomationBenchArtificial Analysis69.5%–
GDP.pdf (AA)Artificial Analysis26.2%–
Harvey LAB-AA v1.1Harvey4.2%–
AA-Briefcase v1.1Artificial Analysis1800–
GDPxGDPx by SemiAnalysis12.0%–
Design Arena AgenticDesign Arena1334†–
Terminal-Bench-Science 0.1 (AA)Artificial Analysis59.0%–
CWE-Bench (AA)Artificial Analysis58.3%–
DeepSec-Bench (AA)Artificial Analysis26.9%–
CyberGym end-to-end (AA)Artificial Analysis0.8%–
FACTS SearchGoogle88.4%†–
Maths
FrontierMath Tiers 1–3Epoch AI Benchmarking Hub91.2%–
FrontierMath Tier 4Epoch AI Benchmarking Hub95.0%–
OTIS Mock AIMEEpoch AI Benchmarking Hub100.0%–
ProofBenchVals AI100.0%–
LiveBench MathematicsLiveBench97.1%–
Arena MathsArena (LMArena)1518†1451
Knowledge
SimpleQA VerifiedEpoch AI Benchmarking Hub72.2%–
LiveBench 2.0 Data AnalysisLiveBench80.3%†–
LiveBench ResearchLiveBench88.9%†–
LiveBench 1.0 Data AnalysisLiveBench80.3%–
AA-Omniscience v1.1Artificial Analysis48.1–
PRBench LegalScale AI SEAL47.6%†–
BioMysteryBenchVals AI79.3%†–
ClaimBenchVals AI100.0%†–
Excel Modeling BenchmarkVals AI75.9%†–
Excel Modeling Benchmark v1.1Vals AI75.8%†–
MedCodeVals AI49.8%†–
MedScribeVals AI91.4%†–
Public Benefits Bench v1.1Vals AI70.6%†–
EBR-benchEpoch AI Benchmarking Hub71.4%–
GDP.pdfEpoch AI Benchmarking Hub30.6%–
AA-Omniscience v1.1: accuracyArtificial Analysis65.5%–
AA-Omniscience v1.1: non-hallucinationArtificial Analysis49.7%–
HealthBench Professional (AA)OpenAI59.9%–
Instruction following
LiveBench LanguageLiveBench86.3%–
LiveBench Instruction FollowingLiveBench65.7%–
IFBenchArtificial Analysis–68.8%
Arena Instruction FollowingArena (LMArena)1519†1446
Human preference
Arena TextArena (LMArena)1506†1448
EQ-Bench 4EQ-Bench1340†–
Arena Creative WritingArena (LMArena)1517†1424
Arena Multi-turnArena (LMArena)1500†1467
Arena Longer QueriesArena (LMArena)1520†1467
Multimodal
Arena VisionArena (LMArena)1324†–
LiveBench DesignLiveBench83.3%†–
MMMU-ProArtificial Analysis87.7%–
SAGEVals AI91.3%†–
Blueprint-Bench 2Epoch AI Benchmarking Hub51.2%†–
Code2Video-AAArtificial Analysis1536–
AA-3DArtificial Analysis1202–
Long context
AA-LCR v1.1Artificial Analysis84.7%68.3%
MLCRArtificial Analysis27.8%–
Composite
Epoch Capabilities IndexEpoch AI Benchmarking Hub168.4†–
LiveBench 2.0LiveBench83.4%†–
LiveBench 1.0LiveBench83.2%–
AA Intelligence Index v5.0Artificial Analysis59.1–
AA Intelligence Index v4.3.2Artificial Analysis57.628.6
AA Progress Index v1Artificial Analysis350279
Vals IndexVals AI70.1†–
Vals Finance IndexVals AI65.3%†–
Vals RSI IndexVals AI37.3%–
Vals Science IndexVals AI58.6%†–
Vals Router IndexVals AI64.2%†–
AA Cyber IndexArtificial Analysis28.7–
Safety & honesty
FORTRESSScale AI SEAL5.8%–

Data as of 2026-11-09. Best configuration of each model; every score links to its source on the model pages.

DuelLab GameBench 2, release gb2-20261103-eaea31df94e6 (https://benchmarks.duellab.org/releases/gb2-20261103-eaea31df94e6/), CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Scores mapped to BenchLeader model names; not endorsed by DuelLab.

What changed

  • Claude Opus 5.5 (max): 2 score revisions.
  • Claude Opus 5.5 (max): 1 score revision.
  • Claude Opus 5.5 (max): 1 score revision.
  • Claude Opus 5.5 (max): 2 score revisions.
  • Claude Opus 5.5 (max): 2 score revisions.
  • Claude Opus 5.5 (max): 1 score revision.
  • Mimo v2 Pro: BenchLeader Index 59.7 → 59.1.
  • Claude Opus 5.5 (max): 5 new results (AA Intelligence Index v5.0, AA Progress Index v1, HLE-Diamond (AA)…); 3 score revisions; cost per task moved from $5.98/M to $10.04/M (68% up).
  • Mimo v2 Pro: 1 new result (AA Progress Index v1).
  • Claude Opus 5.5 (max): 1 score revision.

Rankings: Best LLM overall · Best LLM for coding · Best LLM for agents · Best cheap LLMs

Claude Opus 5.5 vs Mimo v2 Pro: questions

Is Claude Opus 5.5 better than Mimo v2 Pro?
Claude Opus 5.5 (max) leads on quality: 68.9 vs 59.1. The BenchLeader Index combines every independent quality benchmark; Claude Opus 5.5 (max) is ahead overall as of 9 Nov 2026, but check the category scores for your use.
Is Claude Opus 5.5 or Mimo v2 Pro better for coding?
Claude Opus 5.5 scores higher in coding (80 vs 52 on the category index, where 50 is average). On Arena WebDev, the top shared coding benchmark, it is 1818 for Claude Opus 5.5 against 1434 for Mimo v2 Pro.
Is Claude Opus 5.5 or Mimo v2 Pro better for agents and tool use?
Mimo v2 Pro scores higher in agentic tasks (69 vs 63 on the category index, where 50 is average).
Which is better for long documents?
Claude Opus 5.5 scores higher on long-context benchmarks (67 vs 59). Both accept 1,000,000 tokens of context.
Do independent benchmarks agree on Claude Opus 5.5 vs Mimo v2 Pro?
Across the 5 benchmarks both have, Claude Opus 5.5 leads 5, Mimo v2 Pro leads 0. Every overall index that rates both puts Claude Opus 5.5 ahead.
More questions (1)
When was Claude Opus 5.5 released?
Claude Opus 5.5 was released on 22 Sep 2026.