Enter opens the highlighted result. Esc closes.

GPT-5.4 Mini vs Grok 4.6

Grok 4.6 leads GPT-5.4 Mini on coding, 65.7 to 35.8 on the Vibe Coding Index, and GPT-5.4 Mini costs 1.3x less per output token ($4.50 vs $6.00 per million). Updated October 21, 2026; 79 benchmarks have a result for both.

Replace GPT-5.4 Mini Replace Grok 4.6
GPT-5.4 MiniOpenAI
Coding
35.8
Overall
44.0
Output $/M
$4.50
6
Grok 4.6xAI
Coding
65.7
Overall
67.4
Output $/M
$6.00
73
vs boards won of 79 shared

GPT-5.4 Mini or Grok 4.6: which to pick

Pick Grok 4.6 for coding: it scores 65.7 on the Vibe Coding Index against 35.8 for GPT-5.4 Mini.

Pick GPT-5.4 Mini for output tokens 1.3x cheaper ($4.50 vs $6.00 per million) and a lower cost per solved task ($0.70 against $0.82).

Model AGPT-5.4 MiniOpenAI35.8/1005 independent benchmarks$0.70 per solved taskModel BGrok 4.6xAI65.7/1006 independent benchmarks$0.82 per solved task
Shared results
79
GPT-5.4 Mini only
10
Grok 4.6 only
44
Like-for-like categories
7 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
GPT-5.4 Mini 35.8 from 5 benchmarks, Grok 4.6 65.7 from 6 benchmarks.
Widest category
Agentic work, 24.1 points apart on average over 5 shared benchmarks.
Widest single gap
ARC-AGI-2: GPT-5.4 Mini 18.9% against Grok 4.6 67.1%, 48.2 points apart on a 0 to 100 scale.
Output price
GPT-5.4 Mini $4.50 against Grok 4.6 $6.00 per million output tokens, 1.3x apart.
Context window
GPT-5.4 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-5.4 MiniBarsGrok 4.6Ties
Coding017
Intelligence02
Agentic work05
Reasoning112
Math15
Knowledge27
General225
All shared boards673
CodingLike-for-likeSix of these boards feed the Vibe Coding Index017
Coding benchmarks for GPT-5.4 Mini and Grok 4.6
BenchmarkGPT-5.4 MiniGrok 4.6Leader
LiveBench codingNot measured89.1%Only Grok 4.6 measured
LMArena WebDev13971617Grok 4.6
AA Coding Index56.176.8Grok 4.6
LiveCodeBench (Vals AI)81.5%88.2%Grok 4.6
SWE-bench Verified (Vals AI)73.0%95.6%Grok 4.6
Terminal-Bench 4 (Vals AI)2.5%17.2%Grok 4.6
Vibe Code Bench (Vals AI)48.0%76.2%Grok 4.6
Code migration (Vals AI)12.9%44.6%Grok 4.6
ProgramBench (Vals AI)0.0%1.0%Grok 4.6
IOI (Vals AI)Not measured47.6%Only Grok 4.6 measured
Terminal-Bench 2.1 (Vals AI)54.7%78.3%Grok 4.6
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
SciCode52.1%56.5%Grok 4.6
Terminal-Bench Hard (Artificial Analysis run)52.3%Not measuredOnly GPT-5.4 Mini measured
FrontierCode27.0%48.0%Grok 4.6
FrontierSWENot measured25.3%Only Grok 4.6 measured
WeirdML60.3%67.3%Grok 4.6
ALE-Bench1188.61508.1Grok 4.6
LMArena Text: coding14381466Grok 4.6
LMArena Text: software and IT14361457Grok 4.6
LMArena WebDev: React13861631Grok 4.6
LMArena WebDev: HTML14191597Grok 4.6
LMArena WebDev: from an imageNot measured1603Only Grok 4.6 measured
Neither model has a result on the other 14 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index02
Intelligence benchmarks for GPT-5.4 Mini and Grok 4.6
BenchmarkGPT-5.4 MiniGrok 4.6Leader
AA Intelligence Index24.144.3Grok 4.6
Epoch Capabilities Index148.7156.6Grok 4.6
Agentic workLike-for-likePublic boards, shown as published, kept out of the index05
Agentic work benchmarks for GPT-5.4 Mini and Grok 4.6
BenchmarkGPT-5.4 MiniGrok 4.6Leader
AA Agentic Index17.953.0Grok 4.6
Design Arena: agents building web appsNot measured1248Only Grok 4.6 measured
Design Arena: agents building full-stack appsNot measured1264Only Grok 4.6 measured
Design Arena: agents building mobile appsNot measured1236Only 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)45.4%53.7%Grok 4.6
Tax Agent Bench (Vals AI)8.8%33.1%Grok 4.6
Legal Research Bench (Vals AI)12.5%48.1%Grok 4.6
Excel Modeling Benchmark (Vals AI)45.4%62.7%Grok 4.6
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 Telecom83.3%Not measuredOnly GPT-5.4 Mini measured
APEX-AgentsNot measured65.3%Only Grok 4.6 measured
DeepResearch Bench36.3%Not measuredOnly GPT-5.4 Mini measured
Vending-Bench 2Not measured$9,047Only Grok 4.6 measured
Neither model has a result on the other 17 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index112
Reasoning benchmarks for GPT-5.4 Mini and Grok 4.6
BenchmarkGPT-5.4 MiniGrok 4.6Leader
GPQA Diamond83.1%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)79.3%Not measuredOnly GPT-5.4 Mini measured
GPQA Diamond (Artificial Analysis run)87.5%94.9%Grok 4.6
Humanity's Last Exam (Artificial Analysis run)28.1%44.1%Grok 4.6
GPQA Diamond (Epoch AI run)86.9%94.0%Grok 4.6
ARC-AGI63.7%87.5%Grok 4.6
ARC-AGI-218.9%67.1%Grok 4.6
SimpleBenchNot measured75.9%Only Grok 4.6 measured
Chess puzzles23.0%33.0%Grok 4.6
Mystery game puzzles11.0%34.0%Grok 4.6
EBR-benchNot measured30.5%Only Grok 4.6 measured
LMArena Text: hard prompts14241448Grok 4.6
LMArena Text: expert14351469Grok 4.6
LMArena Text: hard prompts in English14201445Grok 4.6
LMArena Vision: diagrams12661285Grok 4.6
LMArena Vision: homework12851283GPT-5.4 Mini
Kagi LLM Benchmark37.9%Not measuredOnly GPT-5.4 Mini measured
Neither model has a result on the other 3 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index15
Math benchmarks for GPT-5.4 Mini and Grok 4.6
BenchmarkGPT-5.4 MiniGrok 4.6Leader
AIME95.6%Not measuredOnly GPT-5.4 Mini measured
OTIS Mock AIME88.9%99.2%Grok 4.6
FrontierMath, tiers 1 to 351.2%66.0%Grok 4.6
FrontierMath, tier 49.8%31.7%Grok 4.6
ProofBench21.0%51.0%Grok 4.6
LMArena Text: math14181417GPT-5.4 Mini
LMArena Text: mathematical work14291464Grok 4.6
Neither model has a result on the other 6 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index27
Knowledge benchmarks for GPT-5.4 Mini and Grok 4.6
BenchmarkGPT-5.4 MiniGrok 4.6Leader
MMLU Pro84.5%89.4%Grok 4.6
LegalBench (Vals AI)Not measured86.3%Only Grok 4.6 measured
CaseLaw (Vals AI)51.7%Not measuredOnly GPT-5.4 Mini measured
CorpFin (Vals AI)60.9%66.2%Grok 4.6
TaxEval (Vals AI)71.2%71.1%GPT-5.4 Mini
MortgageTax (Vals AI)63.5%64.2%Grok 4.6
MedCode (Vals AI)Not measured44.7%Only Grok 4.6 measured
SimpleQA Verified29.4%49.3%Grok 4.6
LMArena Text: science14171437Grok 4.6
LMArena Text: medicine and healthcare13951420Grok 4.6
LMArena Text: legal and government14141429Grok 4.6
LMArena Text: business and finance14181416GPT-5.4 Mini
Neither model has a result on the other 6 boards here
Web designDirectional onlyPublic boards, shown as published, kept out of the index9 boards, none shared
Web design benchmarks for GPT-5.4 Mini and Grok 4.6
BenchmarkGPT-5.4 MiniGrok 4.6Leader
Design Arena: websitesNot measured1289Only Grok 4.6 measured
Design Arena: UI componentsNot measured1295Only Grok 4.6 measured
Design Arena: game devNot measured1296Only Grok 4.6 measured
Design Arena: data vizNot measured1282Only Grok 4.6 measured
Design Arena: 3DNot measured1277Only Grok 4.6 measured
Design Arena: all code categoriesNot measured1292Only Grok 4.6 measured
Design Arena: SVGNot measured1239Only Grok 4.6 measured
Design Arena: ASCII artNot measured1278Only Grok 4.6 measured
LiveBench designNot measured79.8%Only Grok 4.6 measured
GeneralLike-for-likePublic boards, shown as published, kept out of the index225
General benchmarks for GPT-5.4 Mini and Grok 4.6
BenchmarkGPT-5.4 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)50.8%28.9%GPT-5.4 Mini
MedScribe (Vals AI)Not measured86.5%Only Grok 4.6 measured
Vals Multimodal Index54.2%Not measuredOnly GPT-5.4 Mini measured
IFBench73.3%Not measuredOnly GPT-5.4 Mini measured
Long context reasoning (AA-LCR)77.0%81.0%Grok 4.6
DTBench80.0%97.3%Grok 4.6
LMCA40.8%48.5%Grok 4.6
Furniture assemblyNot measured40.0%Only Grok 4.6 measured
LMArena Text14121429Grok 4.6
LMArena Text: instruction following14051431Grok 4.6
LMArena Text: creative writing13701426Grok 4.6
LMArena Vision12451263Grok 4.6
LMArena Text: English14121433Grok 4.6
LMArena Text: non-English14051420Grok 4.6
LMArena Text: Chinese14461476Grok 4.6
LMArena Text: German14081426Grok 4.6
LMArena Text: Japanese13751378Grok 4.6
LMArena Text: Korean13701391Grok 4.6
LMArena Text: French14411455Grok 4.6
LMArena Text: Spanish14051414Grok 4.6
LMArena Text: Russian14171421Grok 4.6
LMArena Text: Polish14151430Grok 4.6
LMArena Text: multi-turn14291425GPT-5.4 Mini
LMArena Text: longer queries14081456Grok 4.6
LMArena Text: writing and language13931429Grok 4.6
LMArena Text: entertainment and media13731421Grok 4.6
LMArena Vision: English12441270Grok 4.6
LMArena Vision: Chinese12861289Grok 4.6
LMArena Vision: reading text12531272Grok 4.6
LMArena Vision: humor12351270Grok 4.6
LMArena Vision: recognizing things1218Not measuredOnly GPT-5.4 Mini measured
LMArena Vision: creative writing12221262Grok 4.6
LMArena DocumentNot measured1452Only Grok 4.6 measured
Neither model has a result on the other 11 boards here
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Image generation benchmarks for GPT-5.4 Mini and Grok 4.6
BenchmarkGPT-5.4 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-5.4 Mini$0.0030Fits in one request
Grok 4.6$0.0050Fits in one request

GPT-5.4 Mini costs less

Repository review

50K input + 3K output tokens

GPT-5.4 Mini$0.051Fits in one request
Grok 4.6$0.118Fits in one request

GPT-5.4 Mini costs less

Agent loop

200K input + 10K output tokens

GPT-5.4 Mini$0.195Fits in one request
Grok 4.6$0.460Fits in one request

GPT-5.4 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-5.4 Mini and Grok 4.6
SpecificationOpenAI GPT-5.4 MiniSpaceXAI Grok 4.6
MakerOpenAIxAI
WeightsNo public weights listedNo public weights listed
ReleasedMarch 17, 2026August 12, 2026
Context window400K500K
Input $/Mtok$0.75$2.00
Output $/Mtok$4.50$6.00
Coding index35.865.7
Independent measurements behind it56
Cost per solved task$0.70$0.82
SourceOpenRouter listingOpenRouter listing

Questions

Is GPT-5.4 Mini better than Grok 4.6 for coding?

Pick Grok 4.6 for coding: it scores 65.7 on the Vibe Coding Index against 35.8 for GPT-5.4 Mini. Pick GPT-5.4 Mini for output tokens 1.3x cheaper ($4.50 vs $6.00 per million) and a lower cost per solved task ($0.70 against $0.82).

Which is cheaper, GPT-5.4 Mini or Grok 4.6?

GPT-5.4 Mini costs $0.75 per million input tokens and $4.50 per million output tokens; Grok 4.6 costs $2.00 and $6.00. Per solved SWE-bench Verified task, GPT-5.4 Mini costs $0.70 and Grok 4.6 $0.82.

Which has the bigger context window, GPT-5.4 Mini or Grok 4.6?

Grok 4.6, with 500K tokens against 400K.

How many benchmarks is the GPT-5.4 Mini vs Grok 4.6 comparison based on?

79 benchmarks have a result for both models as of October 21, 2026. GPT-5.4 Mini's coding index rests on 5 independent benchmarks and Grok 4.6's on 6. Where only one model has a result, the page says so instead of naming a winner.

Compare next

Embed this comparison on your site

Free under CC BY 4.0, while the source link stays visible. Preview the frame · Terms and other embeds

<iframe src="https://llmbenchmark.ai/embed/compare/gpt-5-4-mini-vs-grok-4-6" title="GPT-5.4 Mini vs Grok 4.6, LLMBenchmark.ai" width="100%" height="360" style="border:0;max-width:100%" loading="lazy"></iframe>
<p style="font:13px/1.4 sans-serif;margin:6px 0 0">Source: <a href="https://llmbenchmark.ai/compare/gpt-5-4-mini-vs-grok-4-6">LLMBenchmark.ai, GPT-5.4 Mini vs Grok 4.6</a></p>