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GPT-5 Mini vs Grok 4.6

Updated October 21, 2026. 76 benchmarks have a result for both. Coding is ranked on the Vibe Coding Index; every other board is shown as published.

Replace GPT-5 Mini Replace Grok 4.6
GPT-5 MiniOpenAI
Coding
59.8
Overall
20.6
Output $/M
$2.00
3
Grok 4.6xAI
Coding
76.4
Overall
44.3
Output $/M
$6.00
73
vs boards won of 76 shared

Decision reading

Pick Grok 4.6 for coding: it scores 76.4 on the Vibe Coding Index against 59.8 for GPT-5 Mini.

Pick GPT-5 Mini when output tokens cost 3.0x less, or when a solved task costs $0.08 against $0.82.

Model AGPT-5 MiniOpenAI59.8/1001 independent benchmark$0.08 per solved taskModel BGrok 4.6xAI76.4/1002 independent benchmarks$0.82 per solved task
Shared results
76
GPT-5 Mini only
22
Grok 4.6 only
47
Like-for-like categories
8 of 9

Shared results can support a head-to-head reading. Results only one model has describe coverage, not superiority.

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
GPT-5 Mini 59.8 from 1 benchmark, Grok 4.6 76.4 from 2 benchmarks.
Widest category
Agentic work, 56.5 points apart on average over 1 shared benchmark.
Widest single gap
ARC-AGI-2: GPT-5 Mini 4.4% against Grok 4.6 67.1%, 62.6 points apart on a 0 to 100 scale.
Output price
GPT-5 Mini $2.00 against Grok 4.6 $6.00 per million output tokens, 3.0x apart.
Context window
GPT-5 Mini takes 400K tokens, Grok 4.6 500K.

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
CategoryGPT-5 MiniBarsGrok 4.6Ties
Coding07
Intelligence02
Agentic work01
Reasoning013
Math06
Knowledge29
Web design08
General127
All shared boards373
CodingLike-for-likeFour of these boards feed the Vibe Coding Index07
Coding benchmarks for GPT-5 Mini and Grok 4.6
BenchmarkGPT-5 MiniGrok 4.6Leader
SWE-bench Verified59.8%Not measuredOnly GPT-5 Mini measured
SWE-bench Multilingual39.7%Not measuredOnly GPT-5 Mini measured
LiveBench codingNot measured89.1%Only Grok 4.6 measured
LMArena WebDevNot measured1617Only Grok 4.6 measured
AA Coding IndexNot measured76.8Only Grok 4.6 measured
LiveCodeBench (Vals AI)86.6%88.2%Grok 4.6
SWE-bench Verified (Vals AI)60.8%95.6%Grok 4.6
Terminal-Bench 4 (Vals AI)Not measured17.2%Only Grok 4.6 measured
Vibe Code Bench (Vals AI)14.2%76.2%Grok 4.6
Code migration (Vals AI)Not measured44.6%Only Grok 4.6 measured
ProgramBench (Vals AI)Not measured1.0%Only Grok 4.6 measured
IOI (Vals AI)Not measured47.6%Only Grok 4.6 measured
Terminal-Bench 2.1 (Vals AI)Not measured78.3%Only Grok 4.6 measured
Vibe Code Bench 1-100 (Vals AI)Not measured14.8%Only Grok 4.6 measured
SkillsBench (Vals AI)Not measured55.8%Only Grok 4.6 measured
CyberBench (Vals AI)Not measured67.7%Only Grok 4.6 measured
LiveCodeBench (Artificial Analysis run)83.8%Not measuredOnly GPT-5 Mini measured
SciCode39.0%56.5%Grok 4.6
Terminal-Bench Hard (Artificial Analysis run)33.3%Not measuredOnly GPT-5 Mini measured
Terminal-Bench34.8%Not measuredOnly GPT-5 Mini measured
FrontierCodeNot measured48.0%Only Grok 4.6 measured
FrontierSWENot measured25.3%Only Grok 4.6 measured
WeirdML52.7%67.3%Grok 4.6
ALE-BenchNot measured1508.1Only Grok 4.6 measured
LMArena Text: coding14061466Grok 4.6
LMArena Text: software and IT13941457Grok 4.6
LMArena WebDev: ReactNot measured1631Only Grok 4.6 measured
LMArena WebDev: HTMLNot measured1597Only Grok 4.6 measured
LMArena WebDev: from an imageNot measured1603Only Grok 4.6 measured
Neither model has a result on the other 9 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index02
Intelligence benchmarks for GPT-5 Mini and Grok 4.6
BenchmarkGPT-5 MiniGrok 4.6Leader
AA Intelligence Index20.644.3Grok 4.6
Epoch Capabilities Index145.3156.6Grok 4.6
Agentic workLike-for-likePublic boards, shown as published, kept out of the index01
Agentic work benchmarks for GPT-5 Mini and Grok 4.6
BenchmarkGPT-5 MiniGrok 4.6Leader
AA Agentic IndexNot measured53.0Only Grok 4.6 measured
Design Arena: agents building web appsNot measured1247Only Grok 4.6 measured
Design Arena: agents building full-stack appsNot measured1264Only Grok 4.6 measured
Design Arena: agents building mobile appsNot measured1234Only Grok 4.6 measured
Design Arena: agents building Android appsNot measured1297Only Grok 4.6 measured
Design Arena: agents building Godot gamesNot measured1276Only Grok 4.6 measured
Design Arena: agents building gamesNot measured1208Only Grok 4.6 measured
Design Arena: HTML slidesNot measured1249Only Grok 4.6 measured
Design Arena: PowerPoint slidesNot measured1241Only Grok 4.6 measured
LiveBench researchNot measured84.5%Only Grok 4.6 measured
LiveBench browserNot measured64.0%Only Grok 4.6 measured
LiveBench long agenticNot measured40.7%Only Grok 4.6 measured
Finance Agent (Vals AI)Not measured53.7%Only Grok 4.6 measured
Tax Agent Bench (Vals AI)Not measured33.1%Only Grok 4.6 measured
Legal Research Bench (Vals AI)Not measured48.1%Only Grok 4.6 measured
Excel Modeling Benchmark (Vals AI)Not measured62.7%Only Grok 4.6 measured
BioMysteryBench (Vals AI)Not measured72.2%Only Grok 4.6 measured
Terminal-Bench-Science (Vals AI)Not measured11.4%Only Grok 4.6 measured
Vals Science IndexNot measured38.1%Only Grok 4.6 measured
Time Horizon Index (Vals AI)Not measured5.8%Only Grok 4.6 measured
τ²-Bench Telecom71.1%Not measuredOnly GPT-5 Mini measured
APEX-AgentsNot measured65.3%Only Grok 4.6 measured
Vending-Bench 2-$31$9,047Grok 4.6
Neither model has a result on the other 16 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index013
Reasoning benchmarks for GPT-5 Mini and Grok 4.6
BenchmarkGPT-5 MiniGrok 4.6Leader
GPQA Diamond80.3%94.7%Grok 4.6
LiveBench reasoningNot measured91.2%Only Grok 4.6 measured
MysteryMechanism (Vals AI)Not measured30.6%Only Grok 4.6 measured
MMMU Pro (Vals AI)78.9%Not measuredOnly GPT-5 Mini measured
GPQA Diamond (Artificial Analysis run)82.8%94.9%Grok 4.6
Humanity's Last Exam (Artificial Analysis run)21.5%44.1%Grok 4.6
GPQA Diamond (Epoch AI run)75.0%94.0%Grok 4.6
ARC-AGI54.3%87.5%Grok 4.6
ARC-AGI-24.4%67.1%Grok 4.6
SimpleBenchNot measured75.9%Only Grok 4.6 measured
Chess puzzles24.0%33.0%Grok 4.6
Mystery game puzzles10.0%34.0%Grok 4.6
EBR-benchNot measured30.5%Only Grok 4.6 measured
VPCT40.2%Not measuredOnly GPT-5 Mini measured
LMArena Text: hard prompts13801448Grok 4.6
LMArena Text: expert13791469Grok 4.6
LMArena Text: hard prompts in English13831445Grok 4.6
LMArena Vision: diagrams12021285Grok 4.6
LMArena Vision: homework12101283Grok 4.6
Neither model has a result on the other 2 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index06
Math benchmarks for GPT-5 Mini and Grok 4.6
BenchmarkGPT-5 MiniGrok 4.6Leader
AIME91.5%Not measuredOnly GPT-5 Mini measured
MATH 500 (Vals AI)94.8%Not measuredOnly GPT-5 Mini measured
MGSM (Vals AI)92.6%Not measuredOnly GPT-5 Mini measured
AA Math Index90.7Not measuredOnly GPT-5 Mini measured
AIME 2025 (Artificial Analysis run)90.7%Not measuredOnly GPT-5 Mini measured
OTIS Mock AIME86.7%99.2%Grok 4.6
FrontierMath, tiers 1 to 346.7%66.0%Grok 4.6
FrontierMath, tier 412.2%31.7%Grok 4.6
ProofBench9.0%51.0%Grok 4.6
MATH level 597.8%Not measuredOnly GPT-5 Mini measured
LMArena Text: math13781417Grok 4.6
LMArena Text: mathematical work13801464Grok 4.6
Neither model has a result on the other 1 board here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index29
Knowledge benchmarks for GPT-5 Mini and Grok 4.6
BenchmarkGPT-5 MiniGrok 4.6Leader
MMLU Pro82.2%89.4%Grok 4.6
LegalBench (Vals AI)81.8%86.3%Grok 4.6
CaseLaw (Vals AI)68.5%Not measuredOnly GPT-5 Mini measured
CorpFin (Vals AI)60.2%66.2%Grok 4.6
TaxEval (Vals AI)75.2%71.1%GPT-5 Mini
MortgageTax (Vals AI)66.9%64.2%GPT-5 Mini
MedQA (Vals AI)96.1%Not measuredOnly GPT-5 Mini measured
MedCode (Vals AI)43.0%44.7%Grok 4.6
MMLU Pro (Artificial Analysis run)83.7%Not measuredOnly GPT-5 Mini measured
SimpleQA Verified21.6%49.3%Grok 4.6
LMArena Text: science13711437Grok 4.6
LMArena Text: medicine and healthcare13801420Grok 4.6
LMArena Text: legal and government13751429Grok 4.6
LMArena Text: business and finance13581416Grok 4.6
Neither model has a result on the other 3 boards here
Web designLike-for-likePublic boards, shown as published, kept out of the index08
Web design benchmarks for GPT-5 Mini and Grok 4.6
BenchmarkGPT-5 MiniGrok 4.6Leader
Design Arena: websites11251289Grok 4.6
Design Arena: UI components11061294Grok 4.6
Design Arena: game dev11301296Grok 4.6
Design Arena: data viz11311283Grok 4.6
Design Arena: 3D10371277Grok 4.6
Design Arena: all code categories11151292Grok 4.6
Design Arena: SVG10911239Grok 4.6
Design Arena: ASCII art11241278Grok 4.6
LiveBench designNot measured79.8%Only Grok 4.6 measured
GeneralLike-for-likePublic boards, shown as published, kept out of the index127
General benchmarks for GPT-5 Mini and Grok 4.6
BenchmarkGPT-5 MiniGrok 4.6Leader
LiveBench data analysisNot measured75.3%Only Grok 4.6 measured
Public Benefits Bench (Vals AI)Not measured66.8%Only Grok 4.6 measured
SAGE (Vals AI)43.0%28.9%GPT-5 Mini
MedScribe (Vals AI)80.6%86.5%Grok 4.6
IFBench75.4%Not measuredOnly GPT-5 Mini measured
Long context reasoning (AA-LCR)72.3%81.0%Grok 4.6
DTBench80.5%97.3%Grok 4.6
LMCA34.2%48.5%Grok 4.6
Fiction.LiveBench69.4%Not measuredOnly GPT-5 Mini measured
Creative writing (Lech Mazur)83.1%Not measuredOnly GPT-5 Mini measured
Furniture assemblyNot measured40.0%Only Grok 4.6 measured
LMArena Text13731429Grok 4.6
LMArena Text: instruction following13571431Grok 4.6
LMArena Text: creative writing13251426Grok 4.6
LMArena Vision12021263Grok 4.6
LMArena Text: English13791433Grok 4.6
LMArena Text: non-English13631420Grok 4.6
LMArena Text: Chinese13861476Grok 4.6
LMArena Text: German13661426Grok 4.6
LMArena Text: Japanese13411378Grok 4.6
LMArena Text: Korean13081391Grok 4.6
LMArena Text: French13861455Grok 4.6
LMArena Text: Spanish13541414Grok 4.6
LMArena Text: Russian13621421Grok 4.6
LMArena Text: Polish13781430Grok 4.6
LMArena Text: multi-turn13631425Grok 4.6
LMArena Text: longer queries13551456Grok 4.6
LMArena Text: writing and language13441429Grok 4.6
LMArena Text: entertainment and media13401421Grok 4.6
LMArena Vision: English12161270Grok 4.6
LMArena Vision: Chinese12141289Grok 4.6
LMArena Vision: reading text11991272Grok 4.6
LMArena Vision: humor12051270Grok 4.6
LMArena Vision: captioning1217Not measuredOnly GPT-5 Mini measured
LMArena Vision: recognizing things1226Not measuredOnly GPT-5 Mini measured
LMArena Vision: creative writing11811262Grok 4.6
LMArena DocumentNot measured1452Only Grok 4.6 measured
Neither model has a result on the other 9 boards here
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Image generation benchmarks for GPT-5 Mini and Grok 4.6
BenchmarkGPT-5 MiniGrok 4.6Leader
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

GPT-5 Mini$0.0013Fits in one request
Grok 4.6$0.0050Fits in one request

GPT-5 Mini costs less

Repository review

50K input + 3K output tokens

GPT-5 Mini$0.018Fits in one request
Grok 4.6$0.118Fits in one request

GPT-5 Mini costs less

Agent loop

200K input + 10K output tokens

GPT-5 Mini$0.070Fits in one request
Grok 4.6$0.460Fits in one request

GPT-5 Mini 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 GPT-5 Mini and Grok 4.6
SpecificationOpenAI GPT-5 MiniSpaceXAI Grok 4.6
MakerOpenAIxAI
WeightsNo public weights listedNo public weights listed
ReleasedAugust 7, 2025August 12, 2026
Context window400K500K
Input $/Mtok$0.25$2.00
Output $/Mtok$2.00$6.00
Coding index59.876.4
Independent measurements behind it12
Cost per solved task$0.08$0.82
SourceOpenRouter listingOpenRouter listing

Questions

Is GPT-5 Mini better than Grok 4.6 for coding?

Pick Grok 4.6 for coding: it scores 76.4 on the Vibe Coding Index against 59.8 for GPT-5 Mini. Pick GPT-5 Mini when output tokens cost 3.0x less, or when a solved task costs $0.08 against $0.82.

Which is cheaper, GPT-5 Mini or Grok 4.6?

GPT-5 Mini costs $0.25 per million input tokens and $2.00 per million output tokens; Grok 4.6 costs $2.00 and $6.00. Per solved SWE-bench Verified task, GPT-5 Mini costs $0.08 and Grok 4.6 $0.82.

Which has the bigger context window, GPT-5 Mini or Grok 4.6?

Grok 4.6, with 500K tokens against 400K.

How many benchmarks is the GPT-5 Mini vs Grok 4.6 comparison based on?

76 benchmarks have a result for both models as of October 21, 2026. GPT-5 Mini's coding index rests on 1 independent benchmark and Grok 4.6's on 2. Where only one model has a result, the page says so instead of naming a winner.

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