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Model comparison

GPT-OSS 120B vs MiMo-V2-Flash

Data verified

Head-to-head evidence from 15 shared benchmark results across 5 categories. Overall scores shown here use the public BenchAlign v5 ranking lane.

50.08/100
Margin
4.0pts
winning →
54.06/100
0 category wins0 category wins

Public leaderboard positions: GPT-OSS 120B #116 (Supported); MiMo-V2-Flash #91 (Supported). Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.

Evidence parity. GPT-OSS 120B and MiMo-V2-Flash share 15 comparable benchmark results. 0 of 8 categories are comparable. 11 results are unique to GPT-OSS 120B; 4 to MiMo-V2-Flash.

Updated July 22, 2026
Shared results
15
GPT-OSS 120B only
11
MiMo-V2-Flash only
4
Comparable categories
0 / 8

Benchmark data for GPT-OSS 120B and MiMo-V2-Flash is coming soon on BenchLM.

Confidence note. This is a partial-evidence comparison with 15 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 128K for GPT-OSS 120B.

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 GPT-OSS 120B and MiMo-V2-Flash
CategoryGPT-OSS 120BΔMiMo-V2-Flash
CodingGPT-OSS 120BNot measuredMarginNo overlapMiMo-V2-Flash73.4
KnowledgeGPT-OSS 120BNot measuredMarginNo overlapMiMo-V2-Flash84.7

Operational comparison

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

MetricGPT-OSS 120BMiMo-V2-FlashComparison
Input / output priceUSD per 1M tokensGPT-OSS 120B$0 input / $0 outputMiMo-V2-Flash$0 input / $0 outputListed prices are equal.
Generation speedtokens per secondGPT-OSS 120B262 tok/sMiMo-V2-Flash129 tok/sGPT-OSS 120B has the higher measured throughput.
First-answer latencyseconds to first tokenGPT-OSS 120B0.79 sMiMo-V2-Flash2.14 sGPT-OSS 120B reaches the first token sooner.
Context windowmaximum listed tokensGPT-OSS 120B128KMiMo-V2-Flash256KMiMo-V2-Flash lists the larger context window.

Benchmark Deep Dive

Agentic
BenchmarkGPT-OSS 120BMiMo-V2-FlashResult
AA Agentic IndexSource 13.2%12.0%GPT-OSS 120B leads
APEX-Agents-AASource 3.1%—Not comparable
τ²-bench resultsSource 65.8%83.9%MiMo-V2-Flash leads
GDPval-AASource 15.0%16.7%MiMo-V2-Flash leads
GDPval-AASource 799833MiMo-V2-Flash leads
Gert LabsSource 29.61%—Not comparable
AA EnterpriseOps-GymSource 25.5%—Not comparable
AA ITBenchSource 5.6%—Not comparable
Coding
BenchmarkGPT-OSS 120BMiMo-V2-FlashResult
React Native EvalsSource 71.6%—Not comparable
AA Coding IndexSource 30.4%49.8%MiMo-V2-Flash leads
AA-SciCodeSource 38.9%25.9%GPT-OSS 120B leads
AA LiveCodeBenchSource 87.8%—Not comparable
SWE-bench VerifiedSource —73.4%Not comparable
Reasoning
BenchmarkGPT-OSS 120BMiMo-V2-FlashResult
AA-LCRSource 50.7%31.3%GPT-OSS 120B leads
CritPtSource 1.1%0.0%GPT-OSS 120B leads
Knowledge
BenchmarkGPT-OSS 120BMiMo-V2-FlashResult
Artificial Analysis Intelligence IndexSource 23.8%24.7%MiMo-V2-Flash leads
AA-GPQA DiamondSource 78.2%65.6%GPT-OSS 120B leads
AA-HLESource 18.5%8.0%GPT-OSS 120B leads
AA-Omniscience IndexSource -50.0%-48.5%MiMo-V2-Flash leads
AA-Omniscience AccuracySource 21.5%15.2%GPT-OSS 120B leads
AA-Omniscience Hallucination RateSource 91.2%75.1%MiMo-V2-Flash leads
AA Openness IndexSource 38.9%—Not comparable
AA MMLU-ProSource 80.8%—Not comparable
GPQASource —83.7%Not comparable
MMLU-ProSource —84.9%Not comparable
Math
BenchmarkGPT-OSS 120BMiMo-V2-FlashResult
AA AIME 2025Source 93.4%—Not comparable
AIME 2025Source —94.1%Not comparable
Multilingual
BenchmarkGPT-OSS 120BMiMo-V2-FlashResult
AA Global-MMLU-LiteSource 82.8%—Not comparable
Multimodal
BenchmarkGPT-OSS 120BMiMo-V2-FlashResult
Design Arena WebsiteSource 998—Not comparable
Inst. Following
BenchmarkGPT-OSS 120BMiMo-V2-FlashResult
AA-IFBenchSource 69.0%39.9%GPT-OSS 120B leads
Frequently Asked Questions (3)

Can I compare GPT-OSS 120B 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 GPT-OSS 120B and MiMo-V2-Flash today?

GPT-OSS 120B: $0.00 input / $0.00 output per 1M tokens 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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