Claude Opus 4.7 vs Grok 4.6
Updated October 21, 2026. 86 benchmarks have a result for both. Coding is ranked on the Vibe Coding Index; every other board is shown as published.
Decision reading
Pick Grok 4.6 for coding: it scores 76.4 on the Vibe Coding Index against 51.1 for Claude Opus 4.7.
Pick Claude Opus 4.7 when the context window is larger, 1M against 500K tokens, or when what matters is WeirdML or LMArena Text: coding, where it leads.
- Shared results
- 86
- Claude Opus 4.7 only
- 15
- Grok 4.6 only
- 37
- Like-for-like categories
- 7 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.
Coding
Vibe Coding Index, four public coding benchmarks
Grok 4.6
Grok 4.6 scores 76.4 against 51.1.
1 and 2 benchmarks behind the scores
Intelligence
AA Intelligence Index
Grok 4.6
Grok 4.6 leads, 44.3 against 40.7.
Same board, both measured
Agentic work
AA Agentic Index
Grok 4.6
Grok 4.6 leads, 53.0 against 38.6.
Same board, both measured
Reasoning
GPQA Diamond
Grok 4.6
Grok 4.6 leads, 94.7% against 90.2%.
Same board, both measured
Math
AIME
No call
Only Claude Opus 4.7 has a AIME result, 96.3%.
Directional only
Knowledge
MMLU Pro
Claude Opus 4.7
Claude Opus 4.7 leads, 89.9% against 89.4%.
Same board, both measured
Web design
Design Arena: websites
No call
Only Grok 4.6 has a Design Arena: websites result, 1289.
Directional only
Long documents
Listed context window
Claude Opus 4.7
Claude Opus 4.7 takes 1M tokens against 500K.
Listed by OpenRouter
Everyday cost
1K input + 500 output tokens
Grok 4.6
Claude Opus 4.7 $0.018, Grok 4.6 $0.0050 per turn.
List prices
Cost per solved task
One SWE-bench Verified task, solved
Grok 4.6
Claude Opus 4.7 $2.95, Grok 4.6 $0.82.
Published attempt cost and pass rate
At a glance
- Coding index
- Claude Opus 4.7 51.1 from 1 benchmark, Grok 4.6 76.4 from 2 benchmarks.
- Widest category
- General, 9.9 points apart on average over 30 shared benchmarks.
- Widest single gap
- SAGE (Vals AI): Claude Opus 4.7 56.1% against Grok 4.6 28.9%, 27.2 points apart on a 0 to 100 scale.
- Output price
- Claude Opus 4.7 $25.00 against Grok 4.6 $6.00 per million output tokens, 4.2x apart.
- Context window
- Claude Opus 4.7 takes 1M 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.
| Category | Claude Opus 4.7 | Bars | Grok 4.6 | Ties |
|---|---|---|---|---|
| Coding | 3 | 12 | ||
| Intelligence | 1 | 1 | ||
| Agentic work | 2 | 5 | ||
| Reasoning | 8 | 7 | ||
| Math | 4 | 1 | 1 tie | |
| Knowledge | 9 | 2 | ||
| General | 26 | 4 | ||
| All shared boards | 53 | 32 | 1 tie |
CodingLike-for-likeFour of these boards feed the Vibe Coding Index312
| Benchmark | Claude Opus 4.7 | Grok 4.6 | Leader |
|---|---|---|---|
| LiveBench coding | Not measured | 89.1% | Only Grok 4.6 measured |
| LMArena WebDev | 1558 | 1617 | Grok 4.6 |
| AA Coding Index | 73.6 | 76.8 | Grok 4.6 |
| LiveCodeBench (Vals AI) | 85.1% | 88.2% | Grok 4.6 |
| SWE-bench Verified (Vals AI) | 82.0% | 95.6% | Grok 4.6 |
| Terminal-Bench 4 (Vals AI) | Not measured | 17.2% | Only Grok 4.6 measured |
| Vibe Code Bench (Vals AI) | 71.0% | 76.2% | Grok 4.6 |
| Code migration (Vals AI) | 43.9% | 44.6% | Grok 4.6 |
| ProgramBench (Vals AI) | 0.0% | 1.0% | Grok 4.6 |
| IOI (Vals AI) | Not measured | 47.6% | Only Grok 4.6 measured |
| Terminal-Bench 2.1 (Vals AI) | 68.5% | 78.3% | Grok 4.6 |
| Vibe Code Bench 1-100 (Vals AI) | Not measured | 14.8% | Only Grok 4.6 measured |
| SkillsBench (Vals AI) | Not measured | 55.8% | Only Grok 4.6 measured |
| CyberBench (Vals AI) | Not measured | 67.7% | Only Grok 4.6 measured |
| SciCode | Not measured | 56.5% | Only Grok 4.6 measured |
| Terminal-Bench Hard (Artificial Analysis run) | 54.5% | Not measured | Only Claude Opus 4.7 measured |
| Terminal-Bench | 80.2% | Not measured | Only Claude Opus 4.7 measured |
| FrontierCode | 38.5% | 48.0% | Grok 4.6 |
| FrontierSWE | Not measured | 25.3% | Only Grok 4.6 measured |
| GSO-Bench | 44.1% | Not measured | Only Claude Opus 4.7 measured |
| WeirdML | 76.4% | 67.3% | Claude Opus 4.7 |
| MirrorCode | 31.1% | Not measured | Only Claude Opus 4.7 measured |
| ALE-Bench | Not measured | 1508.1 | Only Grok 4.6 measured |
| LMArena Text: coding | 1519 | 1466 | Claude Opus 4.7 |
| LMArena Text: software and IT | 1516 | 1457 | Claude Opus 4.7 |
| LMArena WebDev: React | 1560 | 1631 | Grok 4.6 |
| LMArena WebDev: HTML | 1554 | 1597 | Grok 4.6 |
| LMArena WebDev: from an image | 1577 | 1603 | Grok 4.6 |
| Neither model has a result on the other 10 boards here | |||
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index11
| Benchmark | Claude Opus 4.7 | Grok 4.6 | Leader |
|---|---|---|---|
| AA Intelligence Index | 40.7 | 44.3 | Grok 4.6 |
| Epoch Capabilities Index | 156.8 | 156.6 | Claude Opus 4.7 |
Agentic workLike-for-likePublic boards, shown as published, kept out of the index25
| Benchmark | Claude Opus 4.7 | Grok 4.6 | Leader |
|---|---|---|---|
| AA Agentic Index | 38.6 | 53.0 | Grok 4.6 |
| Design Arena: agents building web apps | Not measured | 1247 | Only Grok 4.6 measured |
| Design Arena: agents building full-stack apps | Not measured | 1264 | Only Grok 4.6 measured |
| Design Arena: agents building mobile apps | Not measured | 1234 | Only Grok 4.6 measured |
| Design Arena: agents building Android apps | Not measured | 1297 | Only Grok 4.6 measured |
| Design Arena: agents building Godot games | Not measured | 1276 | Only Grok 4.6 measured |
| Design Arena: agents building games | Not measured | 1208 | Only Grok 4.6 measured |
| Design Arena: HTML slides | Not measured | 1249 | Only Grok 4.6 measured |
| Design Arena: PowerPoint slides | Not measured | 1241 | Only Grok 4.6 measured |
| LiveBench research | Not measured | 84.5% | Only Grok 4.6 measured |
| LiveBench browser | Not measured | 64.0% | Only Grok 4.6 measured |
| LiveBench long agentic | Not measured | 40.7% | Only Grok 4.6 measured |
| Finance Agent (Vals AI) | 51.5% | 53.7% | Grok 4.6 |
| Tax Agent Bench (Vals AI) | 23.7% | 33.1% | Grok 4.6 |
| Legal Research Bench (Vals AI) | 38.5% | 48.1% | Grok 4.6 |
| Excel Modeling Benchmark (Vals AI) | 63.7% | 62.7% | Claude Opus 4.7 |
| BioMysteryBench (Vals AI) | Not measured | 72.2% | Only Grok 4.6 measured |
| Terminal-Bench-Science (Vals AI) | Not measured | 11.4% | Only Grok 4.6 measured |
| Vals Science Index | Not measured | 38.1% | Only Grok 4.6 measured |
| Time Horizon Index (Vals AI) | Not measured | 5.8% | Only Grok 4.6 measured |
| τ²-Bench Telecom | 88.6% | Not measured | Only Claude Opus 4.7 measured |
| APEX-Agents | 49.2% | 65.3% | Grok 4.6 |
| OSWorld 2.0 | 18.2% | Not measured | Only Claude Opus 4.7 measured |
| PostTrainBench | 28.6% | Not measured | Only Claude Opus 4.7 measured |
| Vending-Bench 2 | $10,937 | $9,047 | Claude Opus 4.7 |
| LMArena Search | 1230 | Not measured | Only Claude Opus 4.7 measured |
| Neither model has a result on the other 13 boards here | |||
ReasoningLike-for-likePublic boards, shown as published, kept out of the index87
| Benchmark | Claude Opus 4.7 | Grok 4.6 | Leader |
|---|---|---|---|
| GPQA Diamond | 90.2% | 94.7% | Grok 4.6 |
| LiveBench reasoning | Not measured | 91.2% | Only Grok 4.6 measured |
| MysteryMechanism (Vals AI) | Not measured | 30.6% | Only Grok 4.6 measured |
| MMMU Pro (Vals AI) | 85.5% | Not measured | Only Claude Opus 4.7 measured |
| GPQA Diamond (Artificial Analysis run) | 91.4% | 94.9% | Grok 4.6 |
| Humanity's Last Exam (Artificial Analysis run) | 42.3% | 44.1% | Grok 4.6 |
| GPQA Diamond (Epoch AI run) | 90.2% | 94.0% | Grok 4.6 |
| ARC-AGI | 93.5% | 87.5% | Claude Opus 4.7 |
| ARC-AGI-2 | 75.8% | 67.1% | Claude Opus 4.7 |
| SimpleBench | 61.7% | 75.9% | Grok 4.6 |
| Chess puzzles | 41.0% | 33.0% | Claude Opus 4.7 |
| Mystery game puzzles | 28.0% | 34.0% | Grok 4.6 |
| EBR-bench | 19.0% | 30.5% | Grok 4.6 |
| LMArena Text: hard prompts | 1506 | 1448 | Claude Opus 4.7 |
| LMArena Text: expert | 1521 | 1469 | Claude Opus 4.7 |
| LMArena Text: hard prompts in English | 1508 | 1445 | Claude Opus 4.7 |
| LMArena Vision: diagrams | 1336 | 1285 | Claude Opus 4.7 |
| LMArena Vision: homework | 1337 | 1283 | Claude Opus 4.7 |
| Neither model has a result on the other 3 boards here | |||
MathLike-for-likePublic boards, shown as published, kept out of the index41
| Benchmark | Claude Opus 4.7 | Grok 4.6 | Leader |
|---|---|---|---|
| AIME | 96.3% | Not measured | Only Claude Opus 4.7 measured |
| OTIS Mock AIME | 97.8% | 99.2% | Grok 4.6 |
| FrontierMath, tiers 1 to 3 | 70.2% | 66.0% | Claude Opus 4.7 |
| FrontierMath, tier 4 | 31.7% | 31.7% | Tie |
| ProofBench | 54.0% | 51.0% | Claude Opus 4.7 |
| LMArena Text: math | 1498 | 1417 | Claude Opus 4.7 |
| LMArena Text: mathematical work | 1509 | 1464 | Claude Opus 4.7 |
| Neither model has a result on the other 6 boards here | |||
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index92
| Benchmark | Claude Opus 4.7 | Grok 4.6 | Leader |
|---|---|---|---|
| MMLU Pro | 89.9% | 89.4% | Claude Opus 4.7 |
| LegalBench (Vals AI) | 85.3% | 86.3% | Grok 4.6 |
| CaseLaw (Vals AI) | 68.4% | Not measured | Only Claude Opus 4.7 measured |
| CorpFin (Vals AI) | 66.1% | 66.2% | Grok 4.6 |
| TaxEval (Vals AI) | 75.3% | 71.1% | Claude Opus 4.7 |
| MortgageTax (Vals AI) | 70.3% | 64.2% | Claude Opus 4.7 |
| MedCode (Vals AI) | 54.9% | 44.7% | Claude Opus 4.7 |
| SimpleQA Verified | 51.7% | 49.3% | Claude Opus 4.7 |
| LMArena Text: science | 1508 | 1437 | Claude Opus 4.7 |
| LMArena Text: medicine and healthcare | 1495 | 1420 | Claude Opus 4.7 |
| LMArena Text: legal and government | 1504 | 1429 | Claude Opus 4.7 |
| LMArena Text: business and finance | 1490 | 1416 | Claude Opus 4.7 |
| Neither model has a result on the other 5 boards here | |||
Web designDirectional onlyPublic boards, shown as published, kept out of the index9 boards, none shared
| Benchmark | Claude Opus 4.7 | Grok 4.6 | Leader |
|---|---|---|---|
| Design Arena: websites | Not measured | 1289 | Only Grok 4.6 measured |
| Design Arena: UI components | Not measured | 1294 | Only Grok 4.6 measured |
| Design Arena: game dev | Not measured | 1296 | Only Grok 4.6 measured |
| Design Arena: data viz | Not measured | 1283 | Only Grok 4.6 measured |
| Design Arena: 3D | Not measured | 1277 | Only Grok 4.6 measured |
| Design Arena: all code categories | Not measured | 1292 | Only Grok 4.6 measured |
| Design Arena: SVG | Not measured | 1239 | Only Grok 4.6 measured |
| Design Arena: ASCII art | Not measured | 1278 | Only Grok 4.6 measured |
| LiveBench design | Not measured | 79.8% | Only Grok 4.6 measured |
GeneralLike-for-likePublic boards, shown as published, kept out of the index264
| Benchmark | Claude Opus 4.7 | Grok 4.6 | Leader |
|---|---|---|---|
| LiveBench data analysis | Not measured | 75.3% | Only Grok 4.6 measured |
| Public Benefits Bench (Vals AI) | Not measured | 66.8% | Only Grok 4.6 measured |
| SAGE (Vals AI) | 56.1% | 28.9% | Claude Opus 4.7 |
| MedScribe (Vals AI) | 83.0% | 86.5% | Grok 4.6 |
| Vals Multimodal Index | 67.4% | Not measured | Only Claude Opus 4.7 measured |
| IFBench | 58.6% | Not measured | Only Claude Opus 4.7 measured |
| Long context reasoning (AA-LCR) | 78.7% | 81.0% | Grok 4.6 |
| DTBench | 94.7% | 97.3% | Grok 4.6 |
| LMCA | 52.2% | 48.5% | Claude Opus 4.7 |
| Furniture assembly | 33.3% | 40.0% | Grok 4.6 |
| ExploitBench | 26.5% | Not measured | Only Claude Opus 4.7 measured |
| LMArena Text | 1490 | 1429 | Claude Opus 4.7 |
| LMArena Text: instruction following | 1498 | 1431 | Claude Opus 4.7 |
| LMArena Text: creative writing | 1486 | 1426 | Claude Opus 4.7 |
| LMArena Vision | 1317 | 1263 | Claude Opus 4.7 |
| LMArena Text: English | 1496 | 1433 | Claude Opus 4.7 |
| LMArena Text: non-English | 1480 | 1420 | Claude Opus 4.7 |
| LMArena Text: Chinese | 1531 | 1476 | Claude Opus 4.7 |
| LMArena Text: German | 1495 | 1426 | Claude Opus 4.7 |
| LMArena Text: Japanese | 1474 | 1378 | Claude Opus 4.7 |
| LMArena Text: Korean | 1464 | 1391 | Claude Opus 4.7 |
| LMArena Text: French | 1503 | 1455 | Claude Opus 4.7 |
| LMArena Text: Spanish | 1494 | 1414 | Claude Opus 4.7 |
| LMArena Text: Russian | 1494 | 1421 | Claude Opus 4.7 |
| LMArena Text: Polish | 1489 | 1430 | Claude Opus 4.7 |
| LMArena Text: multi-turn | 1505 | 1425 | Claude Opus 4.7 |
| LMArena Text: longer queries | 1505 | 1456 | Claude Opus 4.7 |
| LMArena Text: writing and language | 1492 | 1429 | Claude Opus 4.7 |
| LMArena Text: entertainment and media | 1474 | 1421 | Claude Opus 4.7 |
| LMArena Vision: English | 1322 | 1270 | Claude Opus 4.7 |
| LMArena Vision: Chinese | 1371 | 1289 | Claude Opus 4.7 |
| LMArena Vision: reading text | 1327 | 1272 | Claude Opus 4.7 |
| LMArena Vision: humor | 1309 | 1270 | Claude Opus 4.7 |
| LMArena Vision: recognizing things | 1278 | Not measured | Only Claude Opus 4.7 measured |
| LMArena Vision: creative writing | 1326 | 1262 | Claude Opus 4.7 |
| LMArena Document | 1495 | 1452 | Claude Opus 4.7 |
| Neither model has a result on the other 10 boards here | |||
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
| Benchmark | Claude Opus 4.7 | Grok 4.6 | Leader |
|---|---|---|---|
| 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
Grok 4.6 costs less
Repository review
50K input + 3K output tokens
Grok 4.6 costs less
Agent loop
200K input + 10K output tokens
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.
| Specification | Anthropic Claude Opus 4.7 | SpaceXAI Grok 4.6 |
|---|---|---|
| Maker | Anthropic | xAI |
| Weights | No public weights listed | No public weights listed |
| Released | April 16, 2026 | August 12, 2026 |
| Context window | 1M | 500K |
| Input $/Mtok | $5.00 | $2.00 |
| Output $/Mtok | $25.00 | $6.00 |
| Coding index | 51.1 | 76.4 |
| Independent measurements behind it | 1 | 2 |
| Cost per solved task | $2.95 | $0.82 |
| Source | OpenRouter listing | OpenRouter listing |
Questions
Is Claude Opus 4.7 better than Grok 4.6 for coding?
Pick Grok 4.6 for coding: it scores 76.4 on the Vibe Coding Index against 51.1 for Claude Opus 4.7. Pick Claude Opus 4.7 when the context window is larger, 1M against 500K tokens, or when what matters is WeirdML or LMArena Text: coding, where it leads.
Which is cheaper, Claude Opus 4.7 or Grok 4.6?
Claude Opus 4.7 costs $5.00 per million input tokens and $25.00 per million output tokens; Grok 4.6 costs $2.00 and $6.00. Per solved SWE-bench Verified task, Claude Opus 4.7 costs $2.95 and Grok 4.6 $0.82.
Which has the bigger context window, Claude Opus 4.7 or Grok 4.6?
Claude Opus 4.7, with 1M tokens against 500K.
How many benchmarks is the Claude Opus 4.7 vs Grok 4.6 comparison based on?
86 benchmarks have a result for both models as of October 21, 2026. Claude Opus 4.7's coding index rests on 1 independent benchmark and Grok 4.6's on 2. Where only one model has a result, the page says so instead of naming a winner.