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GLM 5.1 vs Grok 4.7

Grok 4.7 leads GLM 5.1 on coding, 66.7 to 49.2 on the Vibe Coding Index, and GLM 5.1 costs 1.4x less per output token ($4.40 vs $6.00 per million). Updated October 22, 2026; 60 benchmarks have a result for both.

Replace GLM 5.1 Replace Grok 4.7
GLM 5.1Z.ai
Coding
49.2
Overall
57.5
Output $/M
$4.40
32
Grok 4.7xAI
Coding
66.7
Overall
66.6
Output $/M
$6.00
27
vs boards won of 60 shared, 1 tied

GLM 5.1 or Grok 4.7: which to pick

Pick Grok 4.7 for coding: it scores 66.7 on the Vibe Coding Index against 49.2 for GLM 5.1.

Pick GLM 5.1 for output tokens 1.4x cheaper ($4.40 vs $6.00 per million) and work measured by LMArena Text: coding or LMArena Text: software and IT, where it leads.

Model AGLM 5.1Z.ai49.2/1003 independent benchmarks$0.60 per solved taskModel BGrok 4.7xAI66.7/1005 independent benchmarksNo cost per solved task
Shared results
60
GLM 5.1 only
29
Grok 4.7 only
39
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
GLM 5.1 49.2 from 3 benchmarks, Grok 4.7 66.7 from 5 benchmarks.
Widest category
Agentic work, 17.8 points apart on average over 4 shared benchmarks.
Widest single gap
Vibe Code Bench (Vals AI): GLM 5.1 31.5% against Grok 4.7 86.2%, 54.7 points apart on a 0 to 100 scale.
Output price
GLM 5.1 $4.40 against Grok 4.7 $6.00 per million output tokens, 1.4x apart.
Context window
GLM 5.1 takes 205K tokens, Grok 4.7 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
CategoryGLM 5.1BarsGrok 4.7Ties
Coding28
Intelligence02
Agentic work04
Reasoning33
Math23
Knowledge421 tie
Web design42
General173
All shared boards32271 tie
CodingLike-for-likeSix of these boards feed the Vibe Coding Index28
Coding benchmarks for GLM 5.1 and Grok 4.7
BenchmarkGLM 5.1Grok 4.7Leader
LiveBench codingNot measured84.5%Only Grok 4.7 measured
LMArena WebDev15081637Grok 4.7
AA Coding Index55.8Not measuredOnly GLM 5.1 measured
LiveCodeBench (Vals AI)81.4%Not measuredOnly GLM 5.1 measured
SWE-bench Verified (Vals AI)76.4%Not measuredOnly GLM 5.1 measured
Terminal-Bench 4 (Vals AI)Not measured28.8%Only Grok 4.7 measured
Vibe Code Bench (Vals AI)31.5%86.2%Grok 4.7
Code migration (Vals AI)25.8%44.8%Grok 4.7
ProgramBench (Vals AI)0.0%0.5%Grok 4.7
IOI (Vals AI)Not measured57.7%Only Grok 4.7 measured
Terminal-Bench 2.1 (Vals AI)56.9%73.4%Grok 4.7
SWE-bench Multimodal (Vals AI)Not measured42.9%Only Grok 4.7 measured
CyberBench (Vals AI)Not measured69.5%Only Grok 4.7 measured
SciCode44.8%57.8%Grok 4.7
Terminal-Bench Hard (Artificial Analysis run)43.2%Not measuredOnly GLM 5.1 measured
FrontierCodeNot measured47.6%Only Grok 4.7 measured
FrontierSWENot measured29.5%Only Grok 4.7 measured
WeirdML57.1%Not measuredOnly GLM 5.1 measured
ALE-Bench887.1Not measuredOnly GLM 5.1 measured
LMArena Text: coding14851432GLM 5.1
LMArena Text: software and IT14841421GLM 5.1
LMArena WebDev: React15051663Grok 4.7
LMArena WebDev: HTML15081627Grok 4.7
LMArena WebDev: from an imageNot measured1586Only Grok 4.7 measured
Neither model has a result on the other 15 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index02
Intelligence benchmarks for GLM 5.1 and Grok 4.7
BenchmarkGLM 5.1Grok 4.7Leader
AA Intelligence Index26.146.4Grok 4.7
Epoch Capabilities Index149.8154.4Grok 4.7
Agentic workLike-for-likePublic boards, shown as published, kept out of the index04
Agentic work benchmarks for GLM 5.1 and Grok 4.7
BenchmarkGLM 5.1Grok 4.7Leader
AA Agentic Index23.9Not measuredOnly GLM 5.1 measured
Design Arena: agents building web apps1175Not measuredOnly GLM 5.1 measured
Design Arena: agents building full-stack apps1167Not measuredOnly GLM 5.1 measured
Design Arena: agents building mobile apps1162Not measuredOnly GLM 5.1 measured
Design Arena: agents building Android apps1182Not measuredOnly GLM 5.1 measured
Design Arena: agents building Godot games1053Not measuredOnly GLM 5.1 measured
Design Arena: agents building games1164Not measuredOnly GLM 5.1 measured
Design Arena: HTML slides1120Not measuredOnly GLM 5.1 measured
Design Arena: PowerPoint slides1163Not measuredOnly GLM 5.1 measured
Design Arena: spreadsheets1315Not measuredOnly GLM 5.1 measured
LiveBench researchNot measured86.4%Only Grok 4.7 measured
LiveBench browserNot measured60.0%Only Grok 4.7 measured
LiveBench long agenticNot measured50.1%Only Grok 4.7 measured
SREBench (Vals AI)Not measured3.8%Only Grok 4.7 measured
Finance Agent (Vals AI)44.8%52.3%Grok 4.7
Tax Agent Bench (Vals AI)Not measured34.2%Only Grok 4.7 measured
Legal Research Bench (Vals AI)27.9%47.1%Grok 4.7
Harvey's Legal Agent Benchmark (Vals AI)Not measured18.3%Only Grok 4.7 measured
Excel Modeling Benchmark (Vals AI)Not measured67.0%Only Grok 4.7 measured
BioMysteryBench (Vals AI)Not measured69.3%Only Grok 4.7 measured
Terminal-Bench-Science (Vals AI)Not measured10.0%Only Grok 4.7 measured
Vals Science IndexNot measured34.8%Only Grok 4.7 measured
Robo-bench (Vals AI)Not measured0.2%Only Grok 4.7 measured
τ²-Bench Telecom97.7%Not measuredOnly GLM 5.1 measured
APEX-Agents40.9%54.6%Grok 4.7
Vending-Bench 2$5,634$10,537Grok 4.7
Neither model has a result on the other 15 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index33
Reasoning benchmarks for GLM 5.1 and Grok 4.7
BenchmarkGLM 5.1Grok 4.7Leader
GPQA Diamond84.5%Not measuredOnly GLM 5.1 measured
LiveBench reasoningNot measured82.7%Only Grok 4.7 measured
MysteryMechanism (Vals AI)Not measured25.2%Only Grok 4.7 measured
GPQA Diamond (Artificial Analysis run)86.8%Not measuredOnly GLM 5.1 measured
Humanity's Last Exam (Artificial Analysis run)30.1%43.1%Grok 4.7
GPQA Diamond (Epoch AI run)89.9%92.7%Grok 4.7
ARC-AGINot measured90.2%Only Grok 4.7 measured
ARC-AGI-2Not measured61.4%Only Grok 4.7 measured
SimpleBench55.1%Not measuredOnly GLM 5.1 measured
Chess puzzles20.0%41.0%Grok 4.7
Mystery game puzzlesNot measured29.0%Only Grok 4.7 measured
LMArena Text: hard prompts14731415GLM 5.1
LMArena Text: expert14781439GLM 5.1
LMArena Text: hard prompts in English14821427GLM 5.1
LMArena Vision: diagramsNot measured1254Only Grok 4.7 measured
LMArena Vision: homeworkNot measured1309Only Grok 4.7 measured
Neither model has a result on the other 6 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index23
Math benchmarks for GLM 5.1 and Grok 4.7
BenchmarkGLM 5.1Grok 4.7Leader
AIME91.9%Not measuredOnly GLM 5.1 measured
OTIS Mock AIME93.3%98.1%Grok 4.7
FrontierMath, tiers 1 to 336.8%53.0%Grok 4.7
FrontierMath, tier 4Not measured17.1%Only Grok 4.7 measured
ProofBench22.2%26.0%Grok 4.7
LMArena Text: math14731414GLM 5.1
LMArena Text: mathematical work14701435GLM 5.1
Neither model has a result on the other 6 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index42
Knowledge benchmarks for GLM 5.1 and Grok 4.7
BenchmarkGLM 5.1Grok 4.7Leader
MMLU Pro86.9%Not measuredOnly GLM 5.1 measured
LegalBench (Vals AI)84.4%84.4%Tie
CaseLaw (Vals AI)51.5%Not measuredOnly GLM 5.1 measured
CorpFin (Vals AI)64.5%Not measuredOnly GLM 5.1 measured
TaxEval (Vals AI)71.2%Not measuredOnly GLM 5.1 measured
MedCode (Vals AI)41.6%49.5%Grok 4.7
SimpleQA Verified34.0%56.0%Grok 4.7
LMArena Text: science14781419GLM 5.1
LMArena Text: medicine and healthcare14741395GLM 5.1
LMArena Text: legal and government14651423GLM 5.1
LMArena Text: business and finance14521389GLM 5.1
Neither model has a result on the other 7 boards here
Web designLike-for-likePublic boards, shown as published, kept out of the index42
Web design benchmarks for GLM 5.1 and Grok 4.7
BenchmarkGLM 5.1Grok 4.7Leader
Design Arena: websites12901255GLM 5.1
Design Arena: UI components12921275GLM 5.1
Design Arena: game dev12651314Grok 4.7
Design Arena: data viz13661238GLM 5.1
Design Arena: 3D13361274GLM 5.1
Design Arena: all code categories12681273Grok 4.7
Design Arena: SVG1218Not measuredOnly GLM 5.1 measured
Design Arena: ASCII art1141Not measuredOnly GLM 5.1 measured
LiveBench designNot measured78.0%Only Grok 4.7 measured
GeneralLike-for-likePublic boards, shown as published, kept out of the index173
General benchmarks for GLM 5.1 and Grok 4.7
BenchmarkGLM 5.1Grok 4.7Leader
Vals IndexNot measured58.6%Only Grok 4.7 measured
LiveBench data analysisNot measured76.9%Only Grok 4.7 measured
Public Benefits Bench (Vals AI)61.8%65.6%Grok 4.7
SAGE (Vals AI)Not measured40.8%Only Grok 4.7 measured
MedScribe (Vals AI)72.3%89.4%Grok 4.7
IFBench76.3%Not measuredOnly GLM 5.1 measured
Long context reasoning (AA-LCR)73.7%80.0%Grok 4.7
DTBenchNot measured96.0%Only Grok 4.7 measured
LMCANot measured49.4%Only Grok 4.7 measured
Furniture assemblyNot measured20.8%Only Grok 4.7 measured
ExploitBench18.1%Not measuredOnly GLM 5.1 measured
LMArena Text14631399GLM 5.1
LMArena Text: instruction following14531406GLM 5.1
LMArena Text: creative writing14531381GLM 5.1
LMArena VisionNot measured1231Only Grok 4.7 measured
LMArena Text: English14761411GLM 5.1
LMArena Text: non-English14481386GLM 5.1
LMArena Text: Chinese15151449GLM 5.1
LMArena Text: German14671366GLM 5.1
LMArena Text: Japanese14351359GLM 5.1
LMArena Text: Korean14241383GLM 5.1
LMArena Text: French14701431GLM 5.1
LMArena Text: Spanish14681406GLM 5.1
LMArena Text: Russian14541399GLM 5.1
LMArena Text: Polish14491420GLM 5.1
LMArena Text: multi-turn14731394GLM 5.1
LMArena Text: longer queries14671416GLM 5.1
LMArena Text: writing and language14541394GLM 5.1
LMArena Text: entertainment and media14421376GLM 5.1
LMArena Vision: EnglishNot measured1229Only Grok 4.7 measured
LMArena Vision: ChineseNot measured1250Only Grok 4.7 measured
LMArena Vision: reading textNot measured1241Only Grok 4.7 measured
LMArena Vision: creative writingNot measured1217Only Grok 4.7 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 GLM 5.1 and Grok 4.7
BenchmarkGLM 5.1Grok 4.7Leader
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

GLM 5.1$0.0036Fits in one request
Grok 4.7$0.0050Fits in one request

GLM 5.1 costs less

Repository review

50K input + 3K output tokens

GLM 5.1$0.083Fits in one request
Grok 4.7$0.118Fits in one request

GLM 5.1 costs less

Agent loop

200K input + 10K output tokens

GLM 5.1$0.324Exceeds the context window
Grok 4.7$0.460Fits in one request

GLM 5.1 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 GLM 5.1 and Grok 4.7
SpecificationZ.ai GLM 5.1SpaceXAI Grok 4.7
MakerZ.aixAI
WeightsOpen weightsNo public weights listed
ReleasedApril 7, 2026September 21, 2026
Context window205K500K
Input $/Mtok$1.40$2.00
Output $/Mtok$4.40$6.00
Coding index49.266.7
Independent measurements behind it35
Cost per solved task$0.60Not computable
SourceOpenRouter listingOpenRouter listing

Questions

Is GLM 5.1 better than Grok 4.7 for coding?

Pick Grok 4.7 for coding: it scores 66.7 on the Vibe Coding Index against 49.2 for GLM 5.1. Pick GLM 5.1 for output tokens 1.4x cheaper ($4.40 vs $6.00 per million) and work measured by LMArena Text: coding or LMArena Text: software and IT, where it leads.

Which is cheaper, GLM 5.1 or Grok 4.7?

GLM 5.1 costs $1.40 per million input tokens and $4.40 per million output tokens; Grok 4.7 costs $2.00 and $6.00. Cost per solved task is known for GLM 5.1 only.

Which has the bigger context window, GLM 5.1 or Grok 4.7?

Grok 4.7, with 500K tokens against 205K.

How many benchmarks is the GLM 5.1 vs Grok 4.7 comparison based on?

60 benchmarks have a result for both models as of October 22, 2026. GLM 5.1's coding index rests on 3 independent benchmarks and Grok 4.7's on 5. Where only one model has a result, the page says so instead of naming a winner.

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