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Claude Sonnet 4.6 vs Grok 4.6

Anthropic against xAI. Prices, scores and speed below are live.

  • Grok 4.6 costs 50% less on blended price ($4.50 against $9.00 per 1M tokens, 3 input to 1 output).
  • Grok 4.6 scores higher on the Artificial Analysis Intelligence Index: 31 against 30.5.
  • On the 41 benchmarks both have scores on, Claude Sonnet 4.6 leads on 7 and Grok 4.6 on 34.
  • Claude Sonnet 4.6 reads more context: 1M tokens against 500K.
  • Grok 4.6 is newer: listed Aug 12, 2026, against Feb 17, 2026.
Run both on your promptClaude Sonnet 4.6Grok 4.6

Side by side

Claude Sonnet 4.6Grok 4.6
LabAnthropicxAI
ListedFeb 17, 2026Aug 12, 2026
Input per 1M tokens$4.50$3.00
Output per 1M tokens$22.50$9.00
Cached input per 1M$0.45$0.75
Blended (3:1) per 1M$9.00$4.50
Context window1M500K
Max output128K450K
Knowledge cutoff--
Intelligence index30.531
Coding index6375.9
ReasoningYesYes
Reads imagesYesYes
Tool useYesYes
Structured outputYesYes

Every benchmark both are scored on

Each model's best score per benchmark, with its source. Scores from different sources or settings are not always comparable; each links to where it was published.

BenchmarkClaude Sonnet 4.6Grok 4.6
AIME71.1%Epoch AI99.2%Epoch AI
APEX-Agents43%Epoch AI65.3%Epoch AI
ARC-AGI-186.5%Epoch AI87.5%Epoch AI
ARC-AGI-260.4%Epoch AI67.1%Epoch AI
Artificial Analysis Agentic Index31.8Artificial Analysis and OpenRouter53Artificial Analysis and OpenRouter
Artificial Analysis Coding Index63Artificial Analysis and OpenRouter76.8Artificial Analysis and OpenRouter
Artificial Analysis Intelligence Index30.5Artificial Analysis and OpenRouter44.4Artificial Analysis and OpenRouter
Chess Puzzles23%Epoch AI33%Epoch AI
DeepSWE29.9%Epoch AI67.5%Epoch AI
Design Arena: 3D1231 EloDesign Arena1273 EloDesign Arena
Design Arena: Android Native (agentic)1193 EloDesign Arena1294 EloDesign Arena
Design Arena: ASCII Art1233 EloDesign Arena1272 EloDesign Arena
Design Arena: Code1274 EloDesign Arena1290 EloDesign Arena
Design Arena: Data Viz1278 EloDesign Arena1283 EloDesign Arena
Design Arena: Full-stack (agentic)1213 EloDesign Arena1264 EloDesign Arena
Design Arena: Game Dev1259 EloDesign Arena1295 EloDesign Arena
Design Arena: Game Dev (agentic)1123 EloDesign Arena1158 EloDesign Arena
Design Arena: Godot Game Dev (agentic)1226 EloDesign Arena1276 EloDesign Arena
Design Arena: Mobile Apps (agentic)1212 EloDesign Arena1232 EloDesign Arena
Design Arena: SVG1193 EloDesign Arena1234 EloDesign Arena
Design Arena: UI Component1266 EloDesign Arena1290 EloDesign Arena
Design Arena: Web Apps (agentic)1177 EloDesign Arena1235 EloDesign Arena
Design Arena: Website1283 EloDesign Arena1287 EloDesign Arena
DTBench89.9%Epoch AI97.3%Epoch AI
FrontierCode24.3Epoch AI48Epoch AI
GPQA Diamond69.3%Artificial Analysis and OpenRouter92.8%Artificial Analysis and OpenRouter
LMArena (Coding)1503 EloLMArena1464 EloLMArena
LMArena (Overall)1458 EloLMArena1429 EloLMArena
LMArena: Creative Writing1435 EloLMArena1426 EloLMArena
LMArena: Hard Prompts1484 EloLMArena1447 EloLMArena
LMArena: Longer Query1479 EloLMArena1456 EloLMArena
LMArena: Math1483 EloLMArena1461 EloLMArena
LMArena: Multi-Turn1463 EloLMArena1425 EloLMArena
LMCA46.5Epoch AI48.5Epoch AI
Mystery Game Puzzles14%Epoch AI34%Epoch AI
ProofBench45%Epoch AI51%Epoch AI
SciCode46.8%Epoch AI56.5%Epoch AI
SimpleQA Verified32.8%Epoch AI49.3%Epoch AI
tau-bench (Airline)74.3%Artificial Analysis and OpenRouter75.3%Artificial Analysis and OpenRouter
WebDev Arena1521 EloEpoch AI1618 EloEpoch AI
WeirdML66.1%Epoch AI67.3%Epoch AI

More comparisons

Where these figures come from

Prices are GenMagic's own, what the studio and the API charge, recomputed from each provider's price list every few minutes. The indices are the Artificial Analysis indices, and every benchmark score links to its source, re-read daily. Measured speed is GenMagic's own generation records, in aggregate. See Anthropic models, xAI models, every LLM's price and our sources.