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Model comparison

GPT-5.4 vs MiMo-V2.5-Pro

Data verified

Head-to-head evidence from 23 shared benchmark results across 6 categories. Overall scores shown here use the public BenchAlign v5 ranking lane.

GPT-5.4
OpenAI
74.24/100
Margin
4.0pts
← winning
70.19/100
3 category wins0 category wins

Public leaderboard positions: GPT-5.4 #8 (Supported); MiMo-V2.5-Pro #14 (Supported). Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.

Evidence parity. GPT-5.4 and MiMo-V2.5-Pro share 23 comparable benchmark results. 3 of 8 categories are comparable. 29 results are unique to GPT-5.4; 8 to MiMo-V2.5-Pro.

Updated July 21, 2026
Shared results
23
GPT-5.4 only
29
MiMo-V2.5-Pro only
8
Comparable categories
3 / 8

Pick GPT-5.4 if you want the stronger benchmark profile. MiMo-V2.5-Pro only becomes the better choice if its workflow or ecosystem matters more than the raw scoreboard.

Confidence note. This is a partial-evidence comparison with 23 shared benchmark results across 6 evidence categories; 3 of 8 categories currently have scoreable aggregates for both models. Treat the verdict as directional until coverage is more balanced.

Why this result

GPT-5.4 is clearly ahead on the BenchAlign aggregate, 74.24 to 70.19. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.

GPT-5.4's sharpest advantage is in knowledge, where it averages 57.6 against 48. The single biggest benchmark swing on the page is Terminal-Bench 2.0, 75.1% to 68.4%.

GPT-5.4 gives you the larger context window at 1.05M, compared with 1M for MiMo-V2.5-Pro.

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-5.4 and MiMo-V2.5-Pro
CategoryGPT-5.4ΔMiMo-V2.5-Pro
KnowledgeGPT-5.457.6Margin← 9.6MiMo-V2.5-Pro48.0
AgenticGPT-5.477.2Margin← 8.8MiMo-V2.5-Pro68.4
CodingGPT-5.457.7Margin← 0.5MiMo-V2.5-Pro57.2
MathGPT-5.442.5MarginNo overlapMiMo-V2.5-ProNot measured
MultimodalGPT-5.473.2MarginNo overlapMiMo-V2.5-ProNot measured

Decisive benchmark drivers

The largest measured benchmark gaps in this matchup, with exact reported values.

More
A · GPT-5.4B · MiMo-V2.5-Pro

  1. Terminal-Bench 2.0

    Agentic
    Source ↗
    A 75.1%B 68.4%
    Winner: GPT-5.4Δ 6.7
    Terminal-Bench 2.0: GPT-5.4 scored 75.1%; MiMo-V2.5-Pro scored 68.4%. GPT-5.4 wins this benchmark.

  2. HLE

    Knowledge
    Source ↗
    A 52.1%B 48%
    Winner: GPT-5.4Δ 4.1
    HLE: GPT-5.4 scored 52.1%; MiMo-V2.5-Pro scored 48%. GPT-5.4 wins this benchmark.

  3. SWE-bench Pro

    Coding
    Source ↗
    A 57.7%B 57.2%
    Winner: GPT-5.4Δ 0.5
    SWE-bench Pro: GPT-5.4 scored 57.7%; MiMo-V2.5-Pro scored 57.2%. GPT-5.4 wins this benchmark.

Operational comparison

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

MetricGPT-5.4MiMo-V2.5-ProComparison
Input / output priceUSD per 1M tokensGPT-5.4$2.5 input / $15 outputMiMo-V2.5-ProNot availableA complete price comparison is not available.
Generation speedtokens per secondGPT-5.474 tok/sMiMo-V2.5-ProNot availableA complete speed comparison is not available.
First-answer latencyseconds to first tokenGPT-5.4151.79 sMiMo-V2.5-ProNot availableA complete latency comparison is not available.
Context windowmaximum listed tokensGPT-5.41.05MMiMo-V2.5-Pro1MGPT-5.4 lists the larger context window.

Benchmark Deep Dive

AgenticGPT-5.4 wins
BenchmarkGPT-5.4MiMo-V2.5-ProResult
Terminal-Bench 2.0Source 75.1%68.4%GPT-5.4 leads
CyberGymSource 79.0%—Not comparable
BrowseCompSource 82.7%—Not comparable
OSWorld-VerifiedSource 75%—Not comparable
MCP AtlasSource 70.6%—Not comparable
ToolathlonSource 54.6%—Not comparable
τ²-bench resultsSource 87.1%94.2%MiMo-V2.5-Pro leads
Claw-EvalSource 60.3%63.8%MiMo-V2.5-Pro leads
DeepSearchQASource 73.6%—Not comparable
AA Agentic IndexSource 41.1%29.1%GPT-5.4 leads
APEX-Agents-AASource 33.3%2.4%GPT-5.4 leads
GDPval-AASource 44.7%38.3%GPT-5.4 leads
GDPval-AASource 13951265GPT-5.4 leads
Gert LabsSource 64.89%62.70%GPT-5.4 leads
ResearchClawBenchSource 15.3%—Not comparable
JobBenchSource 38.9%—Not comparable
ExploitGymSource 6.0%—Not comparable
τ³-bench resultsSource —72.9%Not comparable
AA BriefcaseSource —873Not comparable
AA ITBenchSource —38.2%Not comparable
terminalBenchHardSource —43.2%Not comparable
aaTerminalBench21Source —65.2%Not comparable
AA Harvey LABSource —73.3%Not comparable
CodingGPT-5.4 wins
BenchmarkGPT-5.4MiMo-V2.5-ProResult
LiveCodeBench ProSource 87.5%—Not comparable
SWE-bench ProSource 57.7%57.2%GPT-5.4 leads
React Native EvalsSource 85.3%—Not comparable
Vibe Code BenchSource 67.42%—Not comparable
AA Coding IndexSource 71.0%60.2%GPT-5.4 leads
AA-SciCodeSource 56.6%50.2%GPT-5.4 leads
Terminal-Bench 2.0Source —68.4%Not comparable
Reasoning
BenchmarkGPT-5.4MiMo-V2.5-ProResult
AA-LCRSource 74.0%73.3%GPT-5.4 leads
CritPtSource 23.4%4.0%GPT-5.4 leads
KnowledgeGPT-5.4 wins
BenchmarkGPT-5.4MiMo-V2.5-ProResult
GPQASource 92.8%—Not comparable
HLESource 52.1%48%GPT-5.4 leads
HLE w/o toolsSource 39.8%34%GPT-5.4 leads
GPQA-DSource 92.8%—Not comparable
HealthBench HardSource 40.1%—Not comparable
MedXpertQA (Text)Source 59.6%—Not comparable
Artificial Analysis Intelligence IndexSource 51.4%42.2%GPT-5.4 leads
AA-GPQA DiamondSource 92.0%86.6%GPT-5.4 leads
AA-HLESource 41.6%33.8%GPT-5.4 leads
AA-Omniscience IndexSource 5.7%3.6%GPT-5.4 leads
AA-Omniscience AccuracySource 50.0%22.6%GPT-5.4 leads
AA-Omniscience Hallucination RateSource 88.6%24.5%MiMo-V2.5-Pro leads
HealthBench ProfessionalSource 48.1%—Not comparable
AA Openness IndexSource —38.9%Not comparable
Math
BenchmarkGPT-5.4MiMo-V2.5-ProResult
FrontierMath v2 (Tiers 1-3)Source 47.600%—Not comparable
FrontierMath v2 (Tier 4)Source 27.100%—Not comparable
Multimodal
BenchmarkGPT-5.4MiMo-V2.5-ProResult
MMMU-ProSource 81.2%—Not comparable
OfficeQA ProSource 53.2%—Not comparable
MMMU-Pro w/ PythonSource 82.1%—Not comparable
CharXivSource 82.8%—Not comparable
ERQASource 65.4%—Not comparable
SimpleVQASource 61.1%—Not comparable
ScreenSpot ProSource 85.4%—Not comparable
ZeroBenchSource 41.0%—Not comparable
MedXpertQA (MM)Source 77.1%—Not comparable
AA-MMMU-ProSource 78.4%—Not comparable
Design Arena WebsiteSource 12501298MiMo-V2.5-Pro leads
Inst. Following
BenchmarkGPT-5.4MiMo-V2.5-ProResult
AA-IFBenchSource 73.9%79.9%MiMo-V2.5-Pro leads
Frequently Asked Questions (4)

Which is better, GPT-5.4 or MiMo-V2.5-Pro?

GPT-5.4 is ahead on BenchLM's BenchAlign leaderboard, 74.24 to 70.19. The biggest single separator in this matchup is Terminal-Bench 2.0, where the scores are 75.1% and 68.4%.

Which is better for knowledge tasks, GPT-5.4 or MiMo-V2.5-Pro?

GPT-5.4 has the edge for knowledge tasks in this comparison, averaging 57.6 versus 48. Inside this category, AA-Omniscience Hallucination Rate is the benchmark that creates the most daylight between them.

Which is better for coding, GPT-5.4 or MiMo-V2.5-Pro?

GPT-5.4 has the edge for coding in this comparison, averaging 57.7 versus 57.2. Inside this category, AA Coding Index is the benchmark that creates the most daylight between them.

Which is better for agentic tasks, GPT-5.4 or MiMo-V2.5-Pro?

GPT-5.4 has the edge for agentic tasks in this comparison, averaging 77.2 versus 68.4. Inside this category, GDPval-AA is the benchmark that creates the most daylight between them.

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