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Model comparison

Claude Opus 4.5 Thinking vs MiMo-V2-Flash

Data verified

Head-to-head evidence from 11 shared benchmark results across 5 categories. Overall scores shown here use the public BenchAlign v5 ranking lane.

57.44/100
Margin
3.4pts
← winning
54.06/100
0 category wins0 category wins

Public leaderboard positions: Claude Opus 4.5 Thinking #69 (Estimated); MiMo-V2-Flash #91 (Supported). Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.

Evidence parity. Claude Opus 4.5 Thinking and MiMo-V2-Flash share 11 comparable benchmark results. 0 of 8 categories are comparable. 5 results are unique to Claude Opus 4.5 Thinking; 8 to MiMo-V2-Flash.

Updated July 23, 2026
Shared results
11
Claude Opus 4.5 Thinking only
5
MiMo-V2-Flash only
8
Comparable categories
0 / 8

Benchmark data for Claude Opus 4.5 Thinking and MiMo-V2-Flash is coming soon on BenchLM.

Confidence note. This is a partial-evidence comparison with 11 shared benchmark results across 5 evidence categories; 0 of 8 categories currently have scoreable aggregates for both models. Treat the verdict as directional until coverage is more balanced.

Why this result

BenchLM has partial data for these models, but not enough overlapping benchmark coverage to produce a fair score-level comparison yet.

MiMo-V2-Flash has the larger context window at 256K, compared with 200K for Claude Opus 4.5 Thinking.

Category breakdown

Exact category averages are shown below. Not measured means BenchLM does not have enough sourced public coverage for that model and category.

Category scores and score margins for Claude Opus 4.5 Thinking and MiMo-V2-Flash
CategoryClaude Opus 4.5 ThinkingΔMiMo-V2-Flash
CodingClaude Opus 4.5 ThinkingNot measuredMarginNo overlapMiMo-V2-Flash73.4
KnowledgeClaude Opus 4.5 ThinkingNot measuredMarginNo overlapMiMo-V2-Flash84.7

Operational comparison

Runtime and commercial metrics are compared only when both models have a complete sourced value.

MetricClaude Opus 4.5 ThinkingMiMo-V2-FlashComparison
Input / output priceUSD per 1M tokensClaude Opus 4.5 ThinkingNot availableMiMo-V2-Flash$0 input / $0 outputA complete price comparison is not available.
Generation speedtokens per secondClaude Opus 4.5 ThinkingNot availableMiMo-V2-Flash129 tok/sA complete speed comparison is not available.
First-answer latencyseconds to first tokenClaude Opus 4.5 ThinkingNot availableMiMo-V2-Flash2.14 sA complete latency comparison is not available.
Context windowmaximum listed tokensClaude Opus 4.5 Thinking200KMiMo-V2-Flash256KMiMo-V2-Flash lists the larger context window.

Benchmark Deep Dive

Agentic
BenchmarkClaude Opus 4.5 ThinkingMiMo-V2-FlashResult
τ²-bench resultsSource 89.5%83.9%Claude Opus 4.5 Thinking leads
AA Agentic IndexSource —12.0%Not comparable
GDPval-AASource —16.7%Not comparable
GDPval-AASource —833Not comparable
Coding
BenchmarkClaude Opus 4.5 ThinkingMiMo-V2-FlashResult
Vibe Code BenchSource 20.63%—Not comparable
AA-SciCodeSource 49.5%25.9%Claude Opus 4.5 Thinking leads
SWE-bench VerifiedSource —73.4%Not comparable
AA Coding IndexSource —49.8%Not comparable
Reasoning
BenchmarkClaude Opus 4.5 ThinkingMiMo-V2-FlashResult
AA-LCRSource 74.0%31.3%Claude Opus 4.5 Thinking leads
CritPtSource 4.6%0.0%Claude Opus 4.5 Thinking leads
Knowledge
BenchmarkClaude Opus 4.5 ThinkingMiMo-V2-FlashResult
Artificial Analysis Intelligence IndexSource 40.8%24.7%Claude Opus 4.5 Thinking leads
AA-GPQA DiamondSource 86.6%65.6%Claude Opus 4.5 Thinking leads
AA-HLESource 28.4%8.0%Claude Opus 4.5 Thinking leads
AA-Omniscience IndexSource 13.3%-48.5%Claude Opus 4.5 Thinking leads
AA-Omniscience AccuracySource 45.7%15.2%Claude Opus 4.5 Thinking leads
AA-Omniscience Hallucination RateSource 59.8%75.1%Claude Opus 4.5 Thinking leads
AA MMLU-ProSource 89.5%—Not comparable
GPQASource —83.7%Not comparable
MMLU-ProSource —84.9%Not comparable
Math
BenchmarkClaude Opus 4.5 ThinkingMiMo-V2-FlashResult
AIME 2025Source —94.1%Not comparable
Multilingual
BenchmarkClaude Opus 4.5 ThinkingMiMo-V2-FlashResult
AA Global-MMLU-LiteSource 91.3%—Not comparable
Multimodal
BenchmarkClaude Opus 4.5 ThinkingMiMo-V2-FlashResult
AA-MMMU-ProSource 74.0%—Not comparable
Design Arena WebsiteSource 1277—Not comparable
Inst. Following
BenchmarkClaude Opus 4.5 ThinkingMiMo-V2-FlashResult
AA-IFBenchSource 58.0%39.9%Claude Opus 4.5 Thinking leads
Frequently Asked Questions (3)

Can I compare Claude Opus 4.5 Thinking and MiMo-V2-Flash on BenchLM yet?

Not fully yet. BenchLM is tracking both models, but the sourced benchmark breakdown for this comparison is still coming soon.

Why does this comparison show “coming soon”?

BenchLM only shows category winners and benchmark-level calls when we have sourced results that can be compared fairly. For these models, the public benchmark coverage is not complete enough yet.

What data is available for Claude Opus 4.5 Thinking and MiMo-V2-Flash today?

MiMo-V2-Flash: $0.00 input / $0.00 output per 1M tokens Both model pages still include creator, context window, reasoning mode, and other metadata while benchmark coverage fills in.

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