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GPT-4o-mini (2024-07-18) vs Grok 4.3

GPT-4o-mini (2024-07-18) costs 4.2x less per output token than Grok 4.3 ($0.60 vs $2.50 per million). Updated October 22, 2026; 37 benchmarks have a result for both.

Replace GPT-4o-mini (2024-07-18) Replace Grok 4.3
GPT-4o-mini (2024-07-18)OpenAI
Coding
No data
Overall
No data
Output $/M
$0.60
0
Grok 4.3xAI
Coding
37.4
Overall
53.1
Output $/M
$2.50
37
vs boards won of 37 shared

GPT-4o-mini (2024-07-18) or Grok 4.3: which to pick

Only Grok 4.3 has a coding score, 37.4 on the Vibe Coding Index; GPT-4o-mini (2024-07-18) has none, so the two cannot be ranked on coding.

Pick GPT-4o-mini (2024-07-18) for output tokens 4.2x cheaper ($0.60 vs $2.50 per million).

Model AGPT-4o-mini (2024-07-18)OpenAINot benchmarkedNo coding benchmarkNo cost per solved taskModel BGrok 4.3xAI37.4/1003 independent benchmarks$0.31 per solved task
Shared results
37
GPT-4o-mini (2024-07-18) only
9
Grok 4.3 only
68
Like-for-like categories
5 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-4o-mini (2024-07-18) not benchmarked, Grok 4.3 37.4 from 3 benchmarks.
Widest category
Math, 42.3 points apart on average over 4 shared benchmarks.
Widest single gap
OTIS Mock AIME: GPT-4o-mini (2024-07-18) 6.9% against Grok 4.3 93.3%, 86.4 points apart on a 0 to 100 scale.
Output price
GPT-4o-mini (2024-07-18) $0.60 against Grok 4.3 $2.50 per million output tokens, 4.2x apart.
Context window
GPT-4o-mini (2024-07-18) takes 128K tokens, Grok 4.3 1M.

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-4o-mini (2024-07-18)BarsGrok 4.3Ties
Coding03
Reasoning05
Math04
Knowledge05
General020
All shared boards037
CodingLike-for-likeSix of these boards feed the Vibe Coding Index03
Coding benchmarks for GPT-4o-mini (2024-07-18) and Grok 4.3
BenchmarkGPT-4o-mini (2024-07-18)Grok 4.3Leader
Aider polyglot3.6%Not measuredOnly GPT-4o-mini (2024-07-18) measured
LMArena WebDevNot measured1358Only Grok 4.3 measured
AA Coding IndexNot measured42.2Only Grok 4.3 measured
LiveCodeBench (Vals AI)Not measured84.5%Only Grok 4.3 measured
SWE-bench Verified (Vals AI)Not measured71.4%Only Grok 4.3 measured
Vibe Code Bench (Vals AI)Not measured19.4%Only Grok 4.3 measured
Code migration (Vals AI)Not measured6.8%Only Grok 4.3 measured
ProgramBench (Vals AI)Not measured0.0%Only Grok 4.3 measured
Terminal-Bench 2.1 (Vals AI)Not measured42.0%Only Grok 4.3 measured
SkillsBench (Vals AI)Not measured40.6%Only Grok 4.3 measured
SciCodeNot measured48.3%Only Grok 4.3 measured
Terminal-Bench Hard (Artificial Analysis run)Not measured37.9%Only Grok 4.3 measured
WeirdML11.8%49.9%Grok 4.3
ALE-BenchNot measured944.2Only Grok 4.3 measured
LMArena Text: coding12901415Grok 4.3
LMArena Text: software and IT12911416Grok 4.3
LMArena WebDev: ReactNot measured1353Only Grok 4.3 measured
LMArena WebDev: HTMLNot measured1367Only Grok 4.3 measured
LMArena WebDev: from an imageNot measured1375Only Grok 4.3 measured
Neither model has a result on the other 20 boards here
IntelligenceDirectional onlyPublic boards, shown as published, kept out of the index1 board, none shared
Intelligence benchmarks for GPT-4o-mini (2024-07-18) and Grok 4.3
BenchmarkGPT-4o-mini (2024-07-18)Grok 4.3Leader
AA Intelligence IndexNot measured24.9Only Grok 4.3 measured
Neither model has a result on the other 1 board here
Agentic workDirectional onlyPublic boards, shown as published, kept out of the index18 boards, none shared
Agentic work benchmarks for GPT-4o-mini (2024-07-18) and Grok 4.3
BenchmarkGPT-4o-mini (2024-07-18)Grok 4.3Leader
AA Agentic IndexNot measured15.5Only Grok 4.3 measured
Design Arena: agents building web appsNot measured1126Only Grok 4.3 measured
Design Arena: agents building full-stack appsNot measured1006Only Grok 4.3 measured
Design Arena: agents building mobile appsNot measured1058Only Grok 4.3 measured
Design Arena: agents building Android appsNot measured962Only Grok 4.3 measured
Design Arena: agents building Godot gamesNot measured914Only Grok 4.3 measured
Design Arena: agents building gamesNot measured1007Only Grok 4.3 measured
Design Arena: HTML slidesNot measured959Only Grok 4.3 measured
Design Arena: PowerPoint slidesNot measured988Only Grok 4.3 measured
Design Arena: spreadsheetsNot measured879Only Grok 4.3 measured
Finance Agent (Vals AI)Not measured37.7%Only Grok 4.3 measured
Tax Agent Bench (Vals AI)Not measured6.2%Only Grok 4.3 measured
Legal Research Bench (Vals AI)Not measured15.4%Only Grok 4.3 measured
Excel Modeling Benchmark (Vals AI)Not measured18.4%Only Grok 4.3 measured
τ²-Bench TelecomNot measured97.7%Only Grok 4.3 measured
BALROG17.4%Not measuredOnly GPT-4o-mini (2024-07-18) measured
Vending-Bench 2Not measured$35Only Grok 4.3 measured
LMArena SearchNot measured1166Only Grok 4.3 measured
Neither model has a result on the other 23 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index05
Reasoning benchmarks for GPT-4o-mini (2024-07-18) and Grok 4.3
BenchmarkGPT-4o-mini (2024-07-18)Grok 4.3Leader
GPQA DiamondNot measured91.4%Only Grok 4.3 measured
MMMU Pro (Vals AI)Not measured83.1%Only Grok 4.3 measured
GPQA Diamond (Artificial Analysis run)Not measured90.1%Only Grok 4.3 measured
Humanity's Last Exam (Artificial Analysis run)Not measured37.2%Only Grok 4.3 measured
GPQA Diamond (Epoch AI run)37.7%88.8%Grok 4.3
SimpleBench10.7%Not measuredOnly GPT-4o-mini (2024-07-18) measured
Chess puzzles3.0%18.0%Grok 4.3
Mystery game puzzles12.0%Not measuredOnly GPT-4o-mini (2024-07-18) measured
VPCT34.0%Not measuredOnly GPT-4o-mini (2024-07-18) measured
LMArena Text: hard prompts12671396Grok 4.3
LMArena Text: expert12341384Grok 4.3
LMArena Text: hard prompts in English12781402Grok 4.3
LMArena Vision: diagramsNot measured1241Only Grok 4.3 measured
LMArena Vision: homeworkNot measured1241Only Grok 4.3 measured
Neither model has a result on the other 8 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index04
Math benchmarks for GPT-4o-mini (2024-07-18) and Grok 4.3
BenchmarkGPT-4o-mini (2024-07-18)Grok 4.3Leader
OTIS Mock AIME6.9%93.3%Grok 4.3
FrontierMath, tiers 1 to 30.7%42.8%Grok 4.3
FrontierMath, tier 4Not measured14.6%Only Grok 4.3 measured
ProofBenchNot measured11.0%Only Grok 4.3 measured
MATH level 552.6%Not measuredOnly GPT-4o-mini (2024-07-18) measured
LMArena Text: math12671387Grok 4.3
LMArena Text: mathematical work12711396Grok 4.3
Neither model has a result on the other 6 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index05
Knowledge benchmarks for GPT-4o-mini (2024-07-18) and Grok 4.3
BenchmarkGPT-4o-mini (2024-07-18)Grok 4.3Leader
MMLU ProNot measured85.8%Only Grok 4.3 measured
LegalBench (Vals AI)Not measured84.5%Only Grok 4.3 measured
CaseLaw (Vals AI)Not measured79.3%Only Grok 4.3 measured
CorpFin (Vals AI)Not measured68.5%Only Grok 4.3 measured
TaxEval (Vals AI)Not measured70.8%Only Grok 4.3 measured
MortgageTax (Vals AI)Not measured48.3%Only Grok 4.3 measured
MedCode (Vals AI)Not measured38.1%Only Grok 4.3 measured
SimpleQA Verified8.3%33.2%Grok 4.3
MMLU76.7%Not measuredOnly GPT-4o-mini (2024-07-18) measured
GeoBench64.0%Not measuredOnly GPT-4o-mini (2024-07-18) measured
LMArena Text: science12861399Grok 4.3
LMArena Text: medicine and healthcare12821384Grok 4.3
LMArena Text: legal and government13051386Grok 4.3
LMArena Text: business and finance12651381Grok 4.3
Neither model has a result on the other 4 boards here
Web designDirectional onlyPublic boards, shown as published, kept out of the index8 boards, none shared
Web design benchmarks for GPT-4o-mini (2024-07-18) and Grok 4.3
BenchmarkGPT-4o-mini (2024-07-18)Grok 4.3Leader
Design Arena: websitesNot measured1196Only Grok 4.3 measured
Design Arena: UI componentsNot measured1190Only Grok 4.3 measured
Design Arena: game devNot measured1173Only Grok 4.3 measured
Design Arena: data vizNot measured1179Only Grok 4.3 measured
Design Arena: 3DNot measured1124Only Grok 4.3 measured
Design Arena: all code categoriesNot measured1186Only Grok 4.3 measured
Design Arena: SVGNot measured1080Only Grok 4.3 measured
Design Arena: ASCII artNot measured1125Only Grok 4.3 measured
Neither model has a result on the other 1 board here
GeneralLike-for-likePublic boards, shown as published, kept out of the index020
General benchmarks for GPT-4o-mini (2024-07-18) and Grok 4.3
BenchmarkGPT-4o-mini (2024-07-18)Grok 4.3Leader
Public Benefits Bench (Vals AI)Not measured51.7%Only Grok 4.3 measured
SAGE (Vals AI)Not measured19.7%Only Grok 4.3 measured
MedScribe (Vals AI)Not measured74.4%Only Grok 4.3 measured
Vals Multimodal IndexNot measured43.3%Only Grok 4.3 measured
IFBenchNot measured83.3%Only Grok 4.3 measured
Long context reasoning (AA-LCR)Not measured75.0%Only Grok 4.3 measured
DTBenchNot measured90.7%Only Grok 4.3 measured
LMCANot measured38.3%Only Grok 4.3 measured
Creative writing (Lech Mazur)67.2%Not measuredOnly GPT-4o-mini (2024-07-18) measured
LMArena Text12861397Grok 4.3
LMArena Text: instruction following12581366Grok 4.3
LMArena Text: creative writing12681380Grok 4.3
LMArena Vision10661229Grok 4.3
LMArena Text: English13011404Grok 4.3
LMArena Text: non-English12661385Grok 4.3
LMArena Text: Chinese12651422Grok 4.3
LMArena Text: German12721395Grok 4.3
LMArena Text: Japanese12161379Grok 4.3
LMArena Text: Korean11951354Grok 4.3
LMArena Text: French12971411Grok 4.3
LMArena Text: Spanish12761399Grok 4.3
LMArena Text: Russian12751399Grok 4.3
LMArena Text: Polish12441398Grok 4.3
LMArena Text: multi-turn12851406Grok 4.3
LMArena Text: longer queries12891393Grok 4.3
LMArena Text: writing and language12821385Grok 4.3
LMArena Text: entertainment and media12531370Grok 4.3
LMArena Vision: English10721235Grok 4.3
LMArena Vision: Chinese10331257Grok 4.3
LMArena Vision: reading textNot measured1235Only Grok 4.3 measured
LMArena Vision: humorNot measured1222Only Grok 4.3 measured
LMArena Vision: recognizing thingsNot measured1217Only Grok 4.3 measured
LMArena Vision: creative writingNot measured1237Only Grok 4.3 measured
Neither model has a result on the other 13 boards here
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Image generation benchmarks for GPT-4o-mini (2024-07-18) and Grok 4.3
BenchmarkGPT-4o-mini (2024-07-18)Grok 4.3Leader
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-4o-mini (2024-07-18)$0.0004Fits in one request
Grok 4.3$0.0025Fits in one request

GPT-4o-mini (2024-07-18) costs less

Repository review

50K input + 3K output tokens

GPT-4o-mini (2024-07-18)$0.0093Fits in one request
Grok 4.3$0.070Fits in one request

GPT-4o-mini (2024-07-18) costs less

Agent loop

200K input + 10K output tokens

GPT-4o-mini (2024-07-18)$0.036Exceeds the context window
Grok 4.3$0.275Fits in one request

GPT-4o-mini (2024-07-18) 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-4o-mini (2024-07-18) and Grok 4.3
SpecificationOpenAI GPT-4o-mini (2024-07-18)SpaceXAI Grok 4.3
MakerOpenAIxAI
WeightsNo public weights listedNo public weights listed
ReleasedJuly 18, 2024April 30, 2026
Context window128K1M
Input $/Mtok$0.15$1.25
Output $/Mtok$0.60$2.50
Coding indexNot benchmarked37.4
Independent measurements behind it03
Cost per solved taskNot computable$0.31
SourceOpenRouter listingOpenRouter listing

Questions

Is GPT-4o-mini (2024-07-18) better than Grok 4.3 for coding?

Only Grok 4.3 has a coding score, 37.4 on the Vibe Coding Index; GPT-4o-mini (2024-07-18) has none, so the two cannot be ranked on coding. Pick GPT-4o-mini (2024-07-18) for output tokens 4.2x cheaper ($0.60 vs $2.50 per million).

Which is cheaper, GPT-4o-mini (2024-07-18) or Grok 4.3?

GPT-4o-mini (2024-07-18) costs $0.15 per million input tokens and $0.60 per million output tokens; Grok 4.3 costs $1.25 and $2.50. Cost per solved task is known for Grok 4.3 only.

Which has the bigger context window, GPT-4o-mini (2024-07-18) or Grok 4.3?

Grok 4.3, with 1M tokens against 128K.

How many benchmarks is the GPT-4o-mini (2024-07-18) vs Grok 4.3 comparison based on?

37 benchmarks have a result for both models as of October 22, 2026. GPT-4o-mini (2024-07-18)'s coding index rests on 0 independent benchmarks and Grok 4.3's on 3. Where only one model has a result, the page says so instead of naming a winner.

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