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Grok 4.5 vs MiniMax M2.5

Grok 4.5 leads MiniMax M2.5 on coding, 58.6 to 37.2 on the Vibe Coding Index, and MiniMax M2.5 costs 5.0x less per output token ($1.20 vs $6.00 per million). Updated October 22, 2026; 57 benchmarks have a result for both.

Replace Grok 4.5 Replace MiniMax M2.5
Grok 4.5xAI
Coding
58.6
Overall
62.1
Output $/M
$6.00
57
MiniMax M2.5MiniMax
Coding
37.2
Overall
37.3
Output $/M
$1.20
0
vs boards won of 57 shared

Grok 4.5 or MiniMax M2.5: which to pick

Pick Grok 4.5 for coding: it scores 58.6 on the Vibe Coding Index against 37.2 for MiniMax M2.5.

Pick MiniMax M2.5 for output tokens 5.0x cheaper ($1.20 vs $6.00 per million).

Model AGrok 4.5xAI58.6/1006 independent benchmarks$0.62 per solved taskModel BMiniMax M2.5MiniMax37.2/1003 independent benchmarks$0.62 per solved task
Shared results
57
Grok 4.5 only
66
MiniMax M2.5 only
11
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
Grok 4.5 58.6 from 6 benchmarks, MiniMax M2.5 37.2 from 3 benchmarks.
Widest category
Agentic work, 24.3 points apart on average over 1 shared benchmark.
Widest single gap
Vibe Code Bench (Vals AI): Grok 4.5 69.0% against MiniMax M2.5 14.8%, 54.1 points apart on a 0 to 100 scale.
Output price
Grok 4.5 $6.00 against MiniMax M2.5 $1.20 per million output tokens, 5.0x apart.
Context window
Grok 4.5 takes 500K tokens, MiniMax M2.5 205K.

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
CategoryGrok 4.5BarsMiniMax M2.5Ties
Coding90
Intelligence20
Agentic work10
Reasoning90
Math30
Knowledge80
Web design70
General180
All shared boards570
CodingLike-for-likeSix of these boards feed the Vibe Coding Index90
Coding benchmarks for Grok 4.5 and MiniMax M2.5
BenchmarkGrok 4.5MiniMax M2.5Leader
SWE-bench VerifiedNot measured75.8%Only MiniMax M2.5 measured
SWE-bench MultilingualNot measured68.3%Only MiniMax M2.5 measured
LiveBench coding94.3%Not measuredOnly Grok 4.5 measured
LMArena WebDev15531386Grok 4.5
AA Coding Index72.4Not measuredOnly Grok 4.5 measured
LiveCodeBench (Vals AI)87.3%79.2%Grok 4.5
SWE-bench Verified (Vals AI)86.6%74.2%Grok 4.5
Terminal-Bench 4 (Vals AI)8.6%Not measuredOnly Grok 4.5 measured
Vibe Code Bench (Vals AI)69.0%14.8%Grok 4.5
Code migration (Vals AI)36.6%Not measuredOnly Grok 4.5 measured
ProgramBench (Vals AI)0.0%Not measuredOnly Grok 4.5 measured
IOI (Vals AI)40.6%Not measuredOnly Grok 4.5 measured
Terminal-Bench 2.1 (Vals AI)67.8%Not measuredOnly Grok 4.5 measured
SkillsBench (Vals AI)66.0%Not measuredOnly Grok 4.5 measured
CyberBench (Vals AI)71.0%Not measuredOnly Grok 4.5 measured
SciCode55.0%Not measuredOnly Grok 4.5 measured
Terminal-Bench Hard (Artificial Analysis run)Not measured34.8%Only MiniMax M2.5 measured
Terminal-BenchNot measured42.7%Only MiniMax M2.5 measured
FrontierCode42.4%Not measuredOnly Grok 4.5 measured
WeirdML46.4%Not measuredOnly Grok 4.5 measured
ALE-Bench1309.3618.2Grok 4.5
LMArena Text: coding14741380Grok 4.5
LMArena Text: software and IT14711383Grok 4.5
LMArena WebDev: React15561374Grok 4.5
LMArena WebDev: HTML15671414Grok 4.5
LMArena WebDev: from an image1562Not measuredOnly Grok 4.5 measured
SciCode6.5%Not measuredOnly Grok 4.5 measured
Neither model has a result on the other 12 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index20
Intelligence benchmarks for Grok 4.5 and MiniMax M2.5
BenchmarkGrok 4.5MiniMax M2.5Leader
AA Intelligence Index38.822.8Grok 4.5
Epoch Capabilities Index154.1146.6Grok 4.5
Agentic workLike-for-likePublic boards, shown as published, kept out of the index10
Agentic work benchmarks for Grok 4.5 and MiniMax M2.5
BenchmarkGrok 4.5MiniMax M2.5Leader
AA Agentic Index41.2Not measuredOnly Grok 4.5 measured
Design Arena: agents building web apps1218Not measuredOnly Grok 4.5 measured
Design Arena: agents building full-stack apps1249Not measuredOnly Grok 4.5 measured
Design Arena: agents building mobile apps1220Not measuredOnly Grok 4.5 measured
Design Arena: agents building Android apps1236Not measuredOnly Grok 4.5 measured
Design Arena: agents building Godot games1229Not measuredOnly Grok 4.5 measured
Design Arena: agents building games1236Not measuredOnly Grok 4.5 measured
Design Arena: HTML slides1205Not measuredOnly Grok 4.5 measured
Design Arena: PowerPoint slides1230Not measuredOnly Grok 4.5 measured
LiveBench research85.9%Not measuredOnly Grok 4.5 measured
LiveBench browser44.0%Not measuredOnly Grok 4.5 measured
LiveBench long agentic27.9%Not measuredOnly Grok 4.5 measured
SREBench (Vals AI)0.8%Not measuredOnly Grok 4.5 measured
Finance Agent (Vals AI)48.4%Not measuredOnly Grok 4.5 measured
Tax Agent Bench (Vals AI)24.9%Not measuredOnly Grok 4.5 measured
Legal Research Bench (Vals AI)38.0%Not measuredOnly Grok 4.5 measured
Excel Modeling Benchmark (Vals AI)52.9%Not measuredOnly Grok 4.5 measured
Time Horizon Index (Vals AI)6.3%Not measuredOnly Grok 4.5 measured
τ²-Bench TelecomNot measured95.3%Only MiniMax M2.5 measured
APEX-Agents56.2%Not measuredOnly Grok 4.5 measured
PostTrainBench23.4%Not measuredOnly Grok 4.5 measured
Vending-Bench 2$3,887-$23Grok 4.5
LMArena Search1216Not measuredOnly Grok 4.5 measured
Neither model has a result on the other 18 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index90
Reasoning benchmarks for Grok 4.5 and MiniMax M2.5
BenchmarkGrok 4.5MiniMax M2.5Leader
GPQA Diamond92.9%82.1%Grok 4.5
LiveBench reasoning87.2%Not measuredOnly Grok 4.5 measured
MMMU Pro (Vals AI)61.8%Not measuredOnly Grok 4.5 measured
GPQA Diamond (Artificial Analysis run)93.1%84.8%Grok 4.5
Humanity's Last Exam (Artificial Analysis run)42.7%20.5%Grok 4.5
GPQA Diamond (Epoch AI run)93.4%Not measuredOnly Grok 4.5 measured
ARC-AGI87.2%63.7%Grok 4.5
ARC-AGI-252.6%4.9%Grok 4.5
SimpleBench70.0%Not measuredOnly Grok 4.5 measured
Chess puzzles35.0%Not measuredOnly Grok 4.5 measured
LMArena Text: hard prompts14621372Grok 4.5
LMArena Text: expert14651378Grok 4.5
LMArena Text: hard prompts in English14641384Grok 4.5
LMArena Vision: diagrams1304Not measuredOnly Grok 4.5 measured
LMArena Vision: homework1295Not measuredOnly Grok 4.5 measured
Kagi LLM Benchmark83.5%55.2%Grok 4.5
Neither model has a result on the other 6 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index30
Math benchmarks for Grok 4.5 and MiniMax M2.5
BenchmarkGrok 4.5MiniMax M2.5Leader
AIMENot measured88.8%Only MiniMax M2.5 measured
OTIS Mock AIME97.8%Not measuredOnly Grok 4.5 measured
FrontierMath, tiers 1 to 357.2%Not measuredOnly Grok 4.5 measured
FrontierMath, tier 424.4%Not measuredOnly Grok 4.5 measured
ProofBench31.0%4.0%Grok 4.5
LMArena Text: math14601378Grok 4.5
LMArena Text: mathematical work14821378Grok 4.5
Neither model has a result on the other 6 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index80
Knowledge benchmarks for Grok 4.5 and MiniMax M2.5
BenchmarkGrok 4.5MiniMax M2.5Leader
MMLU Pro89.2%80.1%Grok 4.5
LegalBench (Vals AI)86.0%80.0%Grok 4.5
CaseLaw (Vals AI)Not measured53.5%Only MiniMax M2.5 measured
CorpFin (Vals AI)67.4%59.6%Grok 4.5
TaxEval (Vals AI)71.7%68.2%Grok 4.5
MortgageTax (Vals AI)61.8%Not measuredOnly Grok 4.5 measured
MedQA (Vals AI)Not measured92.5%Only MiniMax M2.5 measured
MedCode (Vals AI)43.3%Not measuredOnly Grok 4.5 measured
SimpleQA Verified48.3%Not measuredOnly Grok 4.5 measured
LMArena Text: science14641369Grok 4.5
LMArena Text: medicine and healthcare14401357Grok 4.5
LMArena Text: legal and government14631366Grok 4.5
LMArena Text: business and finance14411356Grok 4.5
FACTS Benchmark Suite50.2%Not measuredOnly Grok 4.5 measured
Neither model has a result on the other 4 boards here
Web designLike-for-likePublic boards, shown as published, kept out of the index70
Web design benchmarks for Grok 4.5 and MiniMax M2.5
BenchmarkGrok 4.5MiniMax M2.5Leader
Design Arena: websites12811222Grok 4.5
Design Arena: UI components12801173Grok 4.5
Design Arena: game dev12641176Grok 4.5
Design Arena: data viz12661172Grok 4.5
Design Arena: 3D12571170Grok 4.5
Design Arena: all code categories12751207Grok 4.5
Design Arena: SVG12151150Grok 4.5
Design Arena: ASCII art1256Not measuredOnly Grok 4.5 measured
LiveBench design78.1%Not measuredOnly Grok 4.5 measured
GeneralLike-for-likePublic boards, shown as published, kept out of the index180
General benchmarks for Grok 4.5 and MiniMax M2.5
BenchmarkGrok 4.5MiniMax M2.5Leader
LiveBench data analysis73.0%Not measuredOnly Grok 4.5 measured
SAGE (Vals AI)35.0%Not measuredOnly Grok 4.5 measured
MedScribe (Vals AI)86.9%Not measuredOnly Grok 4.5 measured
Vals Multimodal Index63.4%Not measuredOnly Grok 4.5 measured
IFBenchNot measured71.6%Only MiniMax M2.5 measured
Long context reasoning (AA-LCR)79.3%73.3%Grok 4.5
DTBench96.5%Not measuredOnly Grok 4.5 measured
LMCA45.2%Not measuredOnly Grok 4.5 measured
CL-benchNot measured11.4%Only MiniMax M2.5 measured
Surface Evolver Bench74.4%Not measuredOnly Grok 4.5 measured
Furniture assembly22.5%Not measuredOnly Grok 4.5 measured
CL-bench LifeNot measured6.3%Only MiniMax M2.5 measured
LMArena Text14481359Grok 4.5
LMArena Text: instruction following14451353Grok 4.5
LMArena Text: creative writing14421331Grok 4.5
LMArena Vision1287Not measuredOnly Grok 4.5 measured
LMArena Text: English14531380Grok 4.5
LMArena Text: non-English14401338Grok 4.5
LMArena Text: Chinese14951393Grok 4.5
LMArena Text: German14481361Grok 4.5
LMArena Text: Japanese14301171Grok 4.5
LMArena Text: Korean14061233Grok 4.5
LMArena Text: French14571363Grok 4.5
LMArena Text: Spanish14511353Grok 4.5
LMArena Text: Russian14491359Grok 4.5
LMArena Text: Polish14321334Grok 4.5
LMArena Text: multi-turn14561364Grok 4.5
LMArena Text: longer queries14621366Grok 4.5
LMArena Text: writing and language14451345Grok 4.5
LMArena Text: entertainment and media14341329Grok 4.5
LMArena Vision: English1285Not measuredOnly Grok 4.5 measured
LMArena Vision: Chinese1345Not measuredOnly Grok 4.5 measured
LMArena Vision: reading text1293Not measuredOnly Grok 4.5 measured
LMArena Vision: humor1276Not measuredOnly Grok 4.5 measured
LMArena Vision: creative writing1293Not measuredOnly Grok 4.5 measured
LMArena Document1452Not measuredOnly Grok 4.5 measured
Neither model has a result on the other 10 boards here
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Image generation benchmarks for Grok 4.5 and MiniMax M2.5
BenchmarkGrok 4.5MiniMax M2.5Leader
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

Grok 4.5$0.0050Fits in one request
MiniMax M2.5$0.0009Fits in one request

MiniMax M2.5 costs less

Repository review

50K input + 3K output tokens

Grok 4.5$0.118Fits in one request
MiniMax M2.5$0.019Fits in one request

MiniMax M2.5 costs less

Agent loop

200K input + 10K output tokens

Grok 4.5$0.460Fits in one request
MiniMax M2.5$0.072Exceeds the context window

MiniMax M2.5 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 Grok 4.5 and MiniMax M2.5
SpecificationSpaceXAI Grok 4.5MiniMax M2.5
MakerxAIMiniMax
WeightsNo public weights listedOpen weights
ReleasedJuly 8, 2026February 12, 2026
Context window500K205K
Input $/Mtok$2.00$0.30
Output $/Mtok$6.00$1.20
Coding index58.637.2
Independent measurements behind it63
Cost per solved task$0.62$0.62
SourceOpenRouter listingOpenRouter listing

Questions

Is Grok 4.5 better than MiniMax M2.5 for coding?

Pick Grok 4.5 for coding: it scores 58.6 on the Vibe Coding Index against 37.2 for MiniMax M2.5. Pick MiniMax M2.5 for output tokens 5.0x cheaper ($1.20 vs $6.00 per million).

Which is cheaper, Grok 4.5 or MiniMax M2.5?

Grok 4.5 costs $2.00 per million input tokens and $6.00 per million output tokens; MiniMax M2.5 costs $0.30 and $1.20. Per solved SWE-bench Verified task, Grok 4.5 costs $0.62 and MiniMax M2.5 $0.62.

Which has the bigger context window, Grok 4.5 or MiniMax M2.5?

Grok 4.5, with 500K tokens against 205K.

How many benchmarks is the Grok 4.5 vs MiniMax M2.5 comparison based on?

57 benchmarks have a result for both models as of October 22, 2026. Grok 4.5's coding index rests on 6 independent benchmarks and MiniMax M2.5's on 3. Where only one model has a result, the page says so instead of naming a winner.

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<p style="font:13px/1.4 sans-serif;margin:6px 0 0">Source: <a href="https://llmbenchmark.ai/compare/grok-4-5-vs-minimax-minimax-m2-5">LLMBenchmark.ai, Grok 4.5 vs MiniMax M2.5</a></p>