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GPT-6.1 Sol vs Grok 4.6

GPT-6.1 Sol leads Grok 4.6 on coding, 82.4 to 65.7 on the Vibe Coding Index, and Grok 4.6 costs 1.7x less per output token ($6.00 vs $10.00 per million). Updated October 22, 2026; 89 benchmarks have a result for both.

Replace GPT-6.1 Sol Replace Grok 4.6
GPT-6.1 SolOpenAI
Coding
82.4
Overall
81.4
Output $/M
$10.00
76
Grok 4.6xAI
Coding
65.7
Overall
67.4
Output $/M
$6.00
13
vs boards won of 89 shared

GPT-6.1 Sol or Grok 4.6: which to pick

Pick GPT-6.1 Sol for coding: it scores 82.4 on the Vibe Coding Index against 65.7 for Grok 4.6, though on 5 benchmarks against 6.

Pick Grok 4.6 for output tokens 1.7x cheaper ($6.00 vs $10.00 per million) and work measured by CyberBench (Vals AI) or SciCode, where it leads.

Model AGPT-6.1 SolOpenAI82.4/1005 independent benchmarksNo cost per solved taskModel BGrok 4.6xAI65.7/1006 independent benchmarks$0.82 per solved task
Shared results
89
GPT-6.1 Sol only
9
Grok 4.6 only
34
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
GPT-6.1 Sol 82.4 from 5 benchmarks, Grok 4.6 65.7 from 6 benchmarks.
Widest category
Math, 27.5 points apart on average over 6 shared benchmarks.
Widest single gap
FrontierMath, tier 4: GPT-6.1 Sol 100.0% against Grok 4.6 31.7%, 68.3 points apart on a 0 to 100 scale.
Output price
GPT-6.1 Sol $10.00 against Grok 4.6 $6.00 per million output tokens, 1.7x apart.
Context window
GPT-6.1 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-6.1 SolBarsGrok 4.6Ties
Coding142
Intelligence20
Agentic work76
Reasoning140
Math60
Knowledge60
Web design61
General214
All shared boards7613
CodingLike-for-likeSix of these boards feed the Vibe Coding Index142
Coding benchmarks for GPT-6.1 Sol and Grok 4.6
BenchmarkGPT-6.1 SolGrok 4.6Leader
LiveBench coding96.0%89.1%GPT-6.1 Sol
LMArena WebDev17531617GPT-6.1 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)55.0%17.2%GPT-6.1 Sol
Vibe Code Bench (Vals AI)88.9%76.2%GPT-6.1 Sol
Code migration (Vals AI)65.1%44.6%GPT-6.1 Sol
ProgramBench (Vals AI)3.0%1.0%GPT-6.1 Sol
IOI (Vals AI)96.9%47.6%GPT-6.1 Sol
Terminal-Bench 2.1 (Vals AI)Not measured78.3%Only Grok 4.6 measured
SWE-bench Multimodal (Vals AI)43.5%Not measuredOnly GPT-6.1 Sol 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)39.3%67.7%Grok 4.6
SciCode55.8%56.5%Grok 4.6
FrontierCode50.2%48.0%GPT-6.1 Sol
FrontierSWENot measured25.3%Only Grok 4.6 measured
WeirdMLNot measured67.3%Only Grok 4.6 measured
ALE-Bench2743.81508.1GPT-6.1 Sol
LMArena Text: coding14781466GPT-6.1 Sol
LMArena Text: software and IT14761457GPT-6.1 Sol
LMArena WebDev: React17541631GPT-6.1 Sol
LMArena WebDev: HTML18001597GPT-6.1 Sol
LMArena WebDev: from an image17021603GPT-6.1 Sol
SciCode9.2%Not measuredOnly GPT-6.1 Sol measured
Neither model has a result on the other 13 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index20
Intelligence benchmarks for GPT-6.1 Sol and Grok 4.6
BenchmarkGPT-6.1 SolGrok 4.6Leader
AA Intelligence Index51.844.3GPT-6.1 Sol
Epoch Capabilities Index168.4156.6GPT-6.1 Sol
Agentic workLike-for-likePublic boards, shown as published, kept out of the index76
Agentic work benchmarks for GPT-6.1 Sol and Grok 4.6
BenchmarkGPT-6.1 SolGrok 4.6Leader
AA Agentic IndexNot measured53.0Only Grok 4.6 measured
Design Arena: agents building web apps13061248GPT-6.1 Sol
Design Arena: agents building full-stack appsNot measured1264Only Grok 4.6 measured
Design Arena: agents building mobile apps12131234Grok 4.6
Design Arena: agents building Android appsNot measured1291Only Grok 4.6 measured
Design Arena: agents building Godot gamesNot measured1276Only Grok 4.6 measured
Design Arena: agents building gamesNot measured1209Only Grok 4.6 measured
Design Arena: HTML slidesNot measured1250Only Grok 4.6 measured
Design Arena: PowerPoint slidesNot measured1237Only Grok 4.6 measured
Design Arena: spreadsheets1259Not measuredOnly GPT-6.1 Sol measured
LiveBench research83.5%84.5%Grok 4.6
LiveBench browser88.0%64.0%GPT-6.1 Sol
LiveBench long agentic73.0%40.7%GPT-6.1 Sol
SREBench (Vals AI)50.8%Not measuredOnly GPT-6.1 Sol measured
Finance Agent (Vals AI)52.0%53.7%Grok 4.6
Tax Agent Bench (Vals AI)21.8%33.1%Grok 4.6
Legal Research Bench (Vals AI)38.5%48.1%Grok 4.6
Harvey's Legal Agent Benchmark (Vals AI)6.3%Not measuredOnly GPT-6.1 Sol measured
Excel Modeling Benchmark (Vals AI)70.8%62.7%GPT-6.1 Sol
BioMysteryBench (Vals AI)79.6%72.2%GPT-6.1 Sol
Terminal-Bench-Science (Vals AI)52.9%11.4%GPT-6.1 Sol
Vals Science Index59.6%38.1%GPT-6.1 Sol
Time Horizon Index (Vals AI)Not measured5.8%Only Grok 4.6 measured
Robo-bench (Vals AI)28.3%Not measuredOnly GPT-6.1 Sol measured
APEX-Agents60.0%65.3%Grok 4.6
SpireClimb24.7%Not measuredOnly GPT-6.1 Sol measured
Vending-Bench 2Not measured$9,047Only Grok 4.6 measured
Neither model has a result on the other 14 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index140
Reasoning benchmarks for GPT-6.1 Sol and Grok 4.6
BenchmarkGPT-6.1 SolGrok 4.6Leader
GPQA DiamondNot measured94.7%Only Grok 4.6 measured
LiveBench reasoning92.6%91.2%GPT-6.1 Sol
MysteryMechanism (Vals AI)46.4%30.6%GPT-6.1 Sol
GPQA Diamond (Artificial Analysis run)Not measured94.9%Only Grok 4.6 measured
Humanity's Last Exam (Artificial Analysis run)52.9%44.1%GPT-6.1 Sol
GPQA Diamond (Epoch AI run)95.4%94.0%GPT-6.1 Sol
ARC-AGI98.5%87.5%GPT-6.1 Sol
ARC-AGI-294.2%67.1%GPT-6.1 Sol
SimpleBenchNot measured75.9%Only Grok 4.6 measured
Chess puzzles68.0%33.0%GPT-6.1 Sol
Mystery game puzzles80.0%34.0%GPT-6.1 Sol
EBR-bench54.3%30.5%GPT-6.1 Sol
LMArena Text: hard prompts14631448GPT-6.1 Sol
LMArena Text: expert14891469GPT-6.1 Sol
LMArena Text: hard prompts in English14651445GPT-6.1 Sol
LMArena Vision: diagrams13061285GPT-6.1 Sol
LMArena Vision: homework13561283GPT-6.1 Sol
Neither model has a result on the other 5 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index60
Math benchmarks for GPT-6.1 Sol and Grok 4.6
BenchmarkGPT-6.1 SolGrok 4.6Leader
OTIS Mock AIME100.0%99.2%GPT-6.1 Sol
FrontierMath, tiers 1 to 393.7%66.0%GPT-6.1 Sol
FrontierMath, tier 4100.0%31.7%GPT-6.1 Sol
ProofBench99.0%51.0%GPT-6.1 Sol
LMArena Text: math14891417GPT-6.1 Sol
LMArena Text: mathematical work15131464GPT-6.1 Sol
Neither model has a result on the other 7 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index60
Knowledge benchmarks for GPT-6.1 Sol and Grok 4.6
BenchmarkGPT-6.1 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)48.8%44.7%GPT-6.1 Sol
SimpleQA Verified73.9%49.3%GPT-6.1 Sol
LMArena Text: science14441437GPT-6.1 Sol
LMArena Text: medicine and healthcare14331420GPT-6.1 Sol
LMArena Text: legal and government14711429GPT-6.1 Sol
LMArena Text: business and finance14451416GPT-6.1 Sol
FACTS Benchmark Suite75.3%Not measuredOnly GPT-6.1 Sol measured
Neither model has a result on the other 6 boards here
Web designLike-for-likePublic boards, shown as published, kept out of the index61
Web design benchmarks for GPT-6.1 Sol and Grok 4.6
BenchmarkGPT-6.1 SolGrok 4.6Leader
Design Arena: websites13211289GPT-6.1 Sol
Design Arena: UI components13171294GPT-6.1 Sol
Design Arena: game dev13891296GPT-6.1 Sol
Design Arena: data viz12811282Grok 4.6
Design Arena: 3D14601277GPT-6.1 Sol
Design Arena: all code categories13451292GPT-6.1 Sol
Design Arena: SVGNot measured1240Only Grok 4.6 measured
Design Arena: ASCII artNot measured1279Only Grok 4.6 measured
LiveBench design82.1%79.8%GPT-6.1 Sol
GeneralLike-for-likePublic boards, shown as published, kept out of the index214
General benchmarks for GPT-6.1 Sol and Grok 4.6
BenchmarkGPT-6.1 SolGrok 4.6Leader
Vals Index63.9%Not measuredOnly GPT-6.1 Sol measured
LiveBench data analysis82.7%75.3%GPT-6.1 Sol
Public Benefits Bench (Vals AI)59.3%66.8%Grok 4.6
SAGE (Vals AI)46.5%28.9%GPT-6.1 Sol
MedScribe (Vals AI)86.5%86.5%Grok 4.6
Long context reasoning (AA-LCR)84.0%81.0%GPT-6.1 Sol
DTBench96.5%97.3%Grok 4.6
LMCA62.8%48.5%GPT-6.1 Sol
Furniture assembly80.0%40.0%GPT-6.1 Sol
LMArena Text14431429GPT-6.1 Sol
LMArena Text: instruction following14661431GPT-6.1 Sol
LMArena Text: creative writing14251426Grok 4.6
LMArena Vision12881263GPT-6.1 Sol
LMArena Text: English14501433GPT-6.1 Sol
LMArena Text: non-English14331420GPT-6.1 Sol
LMArena Text: Chinese14871476GPT-6.1 Sol
LMArena Text: GermanNot measured1426Only Grok 4.6 measured
LMArena Text: JapaneseNot measured1378Only Grok 4.6 measured
LMArena Text: KoreanNot measured1391Only Grok 4.6 measured
LMArena Text: French14601455GPT-6.1 Sol
LMArena Text: Spanish14391414GPT-6.1 Sol
LMArena Text: Russian14571421GPT-6.1 Sol
LMArena Text: PolishNot measured1430Only Grok 4.6 measured
LMArena Text: multi-turn14421425GPT-6.1 Sol
LMArena Text: longer queries14581456GPT-6.1 Sol
LMArena Text: writing and language14441429GPT-6.1 Sol
LMArena Text: entertainment and media14261421GPT-6.1 Sol
LMArena Vision: English12741270GPT-6.1 Sol
LMArena Vision: ChineseNot measured1289Only Grok 4.6 measured
LMArena Vision: reading text12891272GPT-6.1 Sol
LMArena Vision: humorNot measured1270Only Grok 4.6 measured
LMArena Vision: creative writing13011262GPT-6.1 Sol
LMArena DocumentNot measured1452Only Grok 4.6 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-6.1 Sol and Grok 4.6
BenchmarkGPT-6.1 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-6.1 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-6.1 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-6.1 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-6.1 Sol and Grok 4.6
SpecificationOpenAI GPT-6.1 SolSpaceXAI Grok 4.6
MakerOpenAIxAI
WeightsNo public weights listedNo public weights listed
ReleasedSeptember 29, 2026August 12, 2026
Context window1.05M500K
Input $/Mtok$2.00$2.00
Output $/Mtok$10.00$6.00
Coding index82.465.7
Independent measurements behind it56
Cost per solved taskNot computable$0.82
SourceOpenRouter listingOpenRouter listing

Questions

Is GPT-6.1 Sol better than Grok 4.6 for coding?

Pick GPT-6.1 Sol for coding: it scores 82.4 on the Vibe Coding Index against 65.7 for Grok 4.6, though on 5 benchmarks against 6. Pick Grok 4.6 for output tokens 1.7x cheaper ($6.00 vs $10.00 per million) and work measured by CyberBench (Vals AI) or SciCode, where it leads.

Which is cheaper, GPT-6.1 Sol or Grok 4.6?

GPT-6.1 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-6.1 Sol or Grok 4.6?

GPT-6.1 Sol, with 1.05M tokens against 500K.

How many benchmarks is the GPT-6.1 Sol vs Grok 4.6 comparison based on?

89 benchmarks have a result for both models as of October 22, 2026. GPT-6.1 Sol'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.

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