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GPT-6 Sol vs Grok 4.6

Updated October 21, 2026. 98 benchmarks have a result for both. Coding is ranked on the Vibe Coding Index; every other board is shown as published.

Replace GPT-6 Sol Replace Grok 4.6
GPT-6 SolOpenAI
Coding
82.8
Overall
47.6
Output $/M
$10.00
49
Grok 4.6xAI
Coding
76.4
Overall
44.3
Output $/M
$6.00
48
vs boards won of 98 shared, 1 tied

Decision reading

Pick GPT-6 Sol for coding: it scores 82.8 on the Vibe Coding Index against 76.4 for Grok 4.6.

Pick Grok 4.6 when output tokens cost 1.7x less, or when what matters is LMArena Text: coding or LMArena Text: software and IT, where it leads.

Model AGPT-6 SolOpenAI82.8/1002 independent benchmarksNo cost per solved taskModel BGrok 4.6xAI76.4/1002 independent benchmarks$0.82 per solved task
Shared results
98
GPT-6 Sol only
2
Grok 4.6 only
25
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-6 Sol 82.8 from 2 benchmarks, Grok 4.6 76.4 from 2 benchmarks.
Widest category
Math, 20.5 points apart on average over 6 shared benchmarks.
Widest single gap
FrontierMath, tier 4: GPT-6 Sol 90.0% against Grok 4.6 31.7%, 58.3 points apart on a 0 to 100 scale.
Output price
GPT-6 Sol $10.00 against Grok 4.6 $6.00 per million output tokens, 1.7x apart.
Context window
GPT-6 Sol takes 1.05M 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-6 SolBarsGrok 4.6Ties
Coding152
Intelligence20
Agentic work78
Reasoning86
Math42
Knowledge24
Web design63
General5231 tie
All shared boards49481 tie
CodingLike-for-likeFour of these boards feed the Vibe Coding Index152
Coding benchmarks for GPT-6 Sol and Grok 4.6
BenchmarkGPT-6 SolGrok 4.6Leader
LiveBench coding93.1%89.1%GPT-6 Sol
LMArena WebDev16831617GPT-6 Sol
AA Coding IndexNot measured76.8Only Grok 4.6 measured
LiveCodeBench (Vals AI)Not measured88.2%Only Grok 4.6 measured
SWE-bench Verified (Vals AI)Not measured95.6%Only Grok 4.6 measured
Terminal-Bench 4 (Vals AI)44.4%17.2%GPT-6 Sol
Vibe Code Bench (Vals AI)87.8%76.2%GPT-6 Sol
Code migration (Vals AI)57.2%44.6%GPT-6 Sol
ProgramBench (Vals AI)2.0%1.0%GPT-6 Sol
IOI (Vals AI)82.6%47.6%GPT-6 Sol
Terminal-Bench 2.1 (Vals AI)83.2%78.3%GPT-6 Sol
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)78.0%67.7%GPT-6 Sol
SciCode57.6%56.5%GPT-6 Sol
FrontierCode49.3%48.0%GPT-6 Sol
FrontierSWENot measured25.3%Only Grok 4.6 measured
WeirdMLNot measured67.3%Only Grok 4.6 measured
ALE-Bench2462.01508.1GPT-6 Sol
LMArena Text: coding14481466Grok 4.6
LMArena Text: software and IT14331457Grok 4.6
LMArena WebDev: React16851631GPT-6 Sol
LMArena WebDev: HTML16851597GPT-6 Sol
LMArena WebDev: from an image16601603GPT-6 Sol
Neither model has a result on the other 14 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index20
Intelligence benchmarks for GPT-6 Sol and Grok 4.6
BenchmarkGPT-6 SolGrok 4.6Leader
AA Intelligence Index47.644.3GPT-6 Sol
Epoch Capabilities Index163.7156.6GPT-6 Sol
Agentic workLike-for-likePublic boards, shown as published, kept out of the index78
Agentic work benchmarks for GPT-6 Sol and Grok 4.6
BenchmarkGPT-6 SolGrok 4.6Leader
AA Agentic IndexNot measured53.0Only Grok 4.6 measured
Design Arena: agents building web apps12321247Grok 4.6
Design Arena: agents building full-stack apps12381264Grok 4.6
Design Arena: agents building mobile apps12161234Grok 4.6
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 research69.3%84.5%Grok 4.6
LiveBench browser92.0%64.0%GPT-6 Sol
LiveBench long agentic66.9%40.7%GPT-6 Sol
SREBench (Vals AI)30.5%Not measuredOnly GPT-6 Sol measured
Finance Agent (Vals AI)49.0%53.7%Grok 4.6
Tax Agent Bench (Vals AI)15.0%33.1%Grok 4.6
Legal Research Bench (Vals AI)28.9%48.1%Grok 4.6
Excel Modeling Benchmark (Vals AI)71.5%62.7%GPT-6 Sol
BioMysteryBench (Vals AI)74.8%72.2%GPT-6 Sol
Terminal-Bench-Science (Vals AI)30.0%11.4%GPT-6 Sol
Vals Science Index45.0%38.1%GPT-6 Sol
Time Horizon Index (Vals AI)Not measured5.8%Only Grok 4.6 measured
APEX-Agents54.3%65.3%Grok 4.6
SpireClimb7.5%Not measuredOnly GPT-6 Sol measured
Vending-Bench 2$14,428$9,047GPT-6 Sol
Neither model has a result on the other 15 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index86
Reasoning benchmarks for GPT-6 Sol and Grok 4.6
BenchmarkGPT-6 SolGrok 4.6Leader
GPQA DiamondNot measured94.7%Only Grok 4.6 measured
LiveBench reasoning88.7%91.2%Grok 4.6
MysteryMechanism (Vals AI)30.2%30.6%Grok 4.6
GPQA Diamond (Artificial Analysis run)Not measured94.9%Only Grok 4.6 measured
Humanity's Last Exam (Artificial Analysis run)47.9%44.1%GPT-6 Sol
GPQA Diamond (Epoch AI run)94.3%94.0%GPT-6 Sol
ARC-AGI95.5%87.5%GPT-6 Sol
ARC-AGI-289.6%67.1%GPT-6 Sol
SimpleBenchNot measured75.9%Only Grok 4.6 measured
Chess puzzles56.0%33.0%GPT-6 Sol
Mystery game puzzles56.0%34.0%GPT-6 Sol
EBR-bench53.3%30.5%GPT-6 Sol
LMArena Text: hard prompts14221448Grok 4.6
LMArena Text: expert14371469Grok 4.6
LMArena Text: hard prompts in English14201445Grok 4.6
LMArena Vision: diagrams12701285Grok 4.6
LMArena Vision: homework12861283GPT-6 Sol
Neither model has a result on the other 4 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index42
Math benchmarks for GPT-6 Sol and Grok 4.6
BenchmarkGPT-6 SolGrok 4.6Leader
OTIS Mock AIME100.0%99.2%GPT-6 Sol
FrontierMath, tiers 1 to 389.8%66.0%GPT-6 Sol
FrontierMath, tier 490.0%31.7%GPT-6 Sol
ProofBench83.0%51.0%GPT-6 Sol
LMArena Text: math14071417Grok 4.6
LMArena Text: mathematical work14241464Grok 4.6
Neither model has a result on the other 7 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index24
Knowledge benchmarks for GPT-6 Sol and Grok 4.6
BenchmarkGPT-6 SolGrok 4.6Leader
MMLU ProNot measured89.4%Only Grok 4.6 measured
LegalBench (Vals AI)Not measured86.3%Only Grok 4.6 measured
CorpFin (Vals AI)Not measured66.2%Only Grok 4.6 measured
TaxEval (Vals AI)Not measured71.1%Only Grok 4.6 measured
MortgageTax (Vals AI)Not measured64.2%Only Grok 4.6 measured
MedCode (Vals AI)47.1%44.7%GPT-6 Sol
SimpleQA Verified60.7%49.3%GPT-6 Sol
LMArena Text: science13891437Grok 4.6
LMArena Text: medicine and healthcare13661420Grok 4.6
LMArena Text: legal and government13961429Grok 4.6
LMArena Text: business and finance13801416Grok 4.6
Neither model has a result on the other 6 boards here
Web designLike-for-likePublic boards, shown as published, kept out of the index63
Web design benchmarks for GPT-6 Sol and Grok 4.6
BenchmarkGPT-6 SolGrok 4.6Leader
Design Arena: websites12921289GPT-6 Sol
Design Arena: UI components12921294Grok 4.6
Design Arena: game dev13131296GPT-6 Sol
Design Arena: data viz12691283Grok 4.6
Design Arena: 3D13221277GPT-6 Sol
Design Arena: all code categories13011292GPT-6 Sol
Design Arena: SVG13181239GPT-6 Sol
Design Arena: ASCII art12261278Grok 4.6
LiveBench design82.2%79.8%GPT-6 Sol
GeneralLike-for-likePublic boards, shown as published, kept out of the index523
General benchmarks for GPT-6 Sol and Grok 4.6
BenchmarkGPT-6 SolGrok 4.6Leader
LiveBench data analysis81.2%75.3%GPT-6 Sol
Public Benefits Bench (Vals AI)56.6%66.8%Grok 4.6
SAGE (Vals AI)44.8%28.9%GPT-6 Sol
MedScribe (Vals AI)82.0%86.5%Grok 4.6
Long context reasoning (AA-LCR)83.7%81.0%GPT-6 Sol
DTBench97.3%97.3%Tie
LMCA59.1%48.5%GPT-6 Sol
Furniture assembly58.3%40.0%GPT-6 Sol
LMArena Text13981429Grok 4.6
LMArena Text: instruction following14131431Grok 4.6
LMArena Text: creative writing13781426Grok 4.6
LMArena Vision12401263Grok 4.6
LMArena Text: English13961433Grok 4.6
LMArena Text: non-English13881420Grok 4.6
LMArena Text: Chinese14121476Grok 4.6
LMArena Text: German13791426Grok 4.6
LMArena Text: Japanese13771378Grok 4.6
LMArena Text: Korean13361391Grok 4.6
LMArena Text: French13991455Grok 4.6
LMArena Text: Spanish13871414Grok 4.6
LMArena Text: Russian14021421Grok 4.6
LMArena Text: Polish13721430Grok 4.6
LMArena Text: multi-turn14141425Grok 4.6
LMArena Text: longer queries14161456Grok 4.6
LMArena Text: writing and language13891429Grok 4.6
LMArena Text: entertainment and media13731421Grok 4.6
LMArena Vision: English12291270Grok 4.6
LMArena Vision: ChineseNot measured1289Only Grok 4.6 measured
LMArena Vision: reading text12581272Grok 4.6
LMArena Vision: humorNot measured1270Only Grok 4.6 measured
LMArena Vision: creative writing12191262Grok 4.6
LMArena DocumentNot measured1452Only Grok 4.6 measured
Neither model has a result on the other 14 boards here
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Image generation benchmarks for GPT-6 Sol and Grok 4.6
BenchmarkGPT-6 SolGrok 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-6 Sol$0.0070Fits in one request
Grok 4.6$0.0050Fits in one request

Grok 4.6 costs less

Repository review

50K input + 3K output tokens

GPT-6 Sol$0.130Fits in one request
Grok 4.6$0.118Fits in one request

Grok 4.6 costs less

Agent loop

200K input + 10K output tokens

GPT-6 Sol$0.500Fits in one request
Grok 4.6$0.460Fits in one request

Grok 4.6 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-6 Sol and Grok 4.6
SpecificationOpenAI GPT-6 SolSpaceXAI Grok 4.6
MakerOpenAIxAI
WeightsNo public weights listedNo public weights listed
ReleasedSeptember 22, 2026August 12, 2026
Context window1.05M500K
Input $/Mtok$2.00$2.00
Output $/Mtok$10.00$6.00
Coding index82.876.4
Independent measurements behind it22
Cost per solved taskNot computable$0.82
SourceOpenRouter listingOpenRouter listing

Questions

Is GPT-6 Sol better than Grok 4.6 for coding?

Pick GPT-6 Sol for coding: it scores 82.8 on the Vibe Coding Index against 76.4 for Grok 4.6. Pick Grok 4.6 when output tokens cost 1.7x less, or when what matters is LMArena Text: coding or LMArena Text: software and IT, where it leads.

Which is cheaper, GPT-6 Sol or Grok 4.6?

GPT-6 Sol costs $2.00 per million input tokens and $10.00 per million output tokens; Grok 4.6 costs $2.00 and $6.00. Cost per solved task is known for Grok 4.6 only.

Which has the bigger context window, GPT-6 Sol or Grok 4.6?

GPT-6 Sol, with 1.05M tokens against 500K.

How many benchmarks is the GPT-6 Sol vs Grok 4.6 comparison based on?

98 benchmarks have a result for both models as of October 21, 2026. GPT-6 Sol's coding index rests on 2 independent benchmarks 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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