PickAIModel.com - Compare Claude Sonnet 4.6 and Grok 4.20 Beta
Claude Sonnet 4.6 vs Grok 4.20 Beta: pricing, Quality, Value, and benchmarks
Side-by-side buyer comparison built from the current published top 10 snapshot. Quality and Value stay deterministic, while editorial verdict excerpts remain clearly AI-labeled.
Verified evidenceVerified evidence
Claude Sonnet 4.6 Quality
69.7
Grok 4.20 Beta Quality
62.3
Quality delta
+7.4Claude Sonnet 4.6 leads
Value delta
-16.2Grok 4.20 Beta leads
Buyer summary
Claude Sonnet 4.6 leads Quality by 7.4 points. Grok 4.20 Beta leads Value by 16.2 points.
Snapshot freshness
Snapshot April 18, 2026. Both pages link back to the same published roster and methodology, so the comparison stays on one deterministic evidence set.
Strong HLE, SWE-bench Verified, and GPQA evidence make Grok 4.20 Beta publishable now, but speed metrics are still unavailable in the current snapshot.
Monthly price
X Premium+: $40/month
App access
Grok
Ease of use
75% | Easy to start
Verified vendor fact
Hosted plan pricing is grounded in the official X Premium+ plan page.
Verified vendor fact
Hosted app availability is grounded in the official Grok product surface.
Deterministic scores
Quality and Value comparison
Claude Sonnet 4.6
Q 69.7
V 70.7
Quality rank 4 and value rank 8 in the current published roster.
Grok 4.20 Beta
Q 62.3
V 86.9
Quality rank 6 and value rank 2 in the current published roster.
Buyer access
Pricing, app access, and ease of use
Claude Sonnet 4.6
Verified vendor fact90% ease of use
Claude Pro: $20/month
~654 conversations equivalent
Hosted app: Claude
Grok 4.20 Beta
Verified vendor fact75% ease of use
X Premium+: $40/month
~3,030 conversations equivalent
Hosted app: Grok
Benchmark evidence
Claude Sonnet 4.6
Verified Mar 26, 2026
Humanity's Last Exam
Normalized quality input
33.2%
Official vendor benchmark page | Replaces the prior underreported HLE row.
SWE-bench Verified
Normalized quality input
79.6%
Google DeepMind Gemini 3.1 Pro comparison table | Vendor-published cross-model comparison table. Treat this as current official evidence, not neutral third-party benchmarking.
GPQA Diamond
Normalized quality input
89.9%
Google DeepMind Gemini 3.1 Pro comparison table | Vendor-published cross-model comparison table. Treat this as current official evidence, not neutral third-party benchmarking.
LiveCodeBench
Fresh coding problems
54.0%
BenchLM Claude Sonnet 4.6 model page | Third-party benchmark model page with sourced rows and transparent methodology. Treat this as accepted tier-3 benchmark evidence.
Benchmark evidence
Grok 4.20 Beta
Verified Apr 18, 2026
Humanity's Last Exam
Normalized quality input
30.0%
Third-party HLE evaluation page | Replaces the prior bad Grok 4.20 HLE mapping.
SWE-bench Verified
Software engineering patch
73.5%
Artificial Analysis Grok 4.20 analysis page | Third-party benchmark comparison page with sourced tables and transparent methodology. Treat this as accepted tier-3 benchmark evidence.
GPQA Diamond
Normalized quality input
78.5%
Artificial Analysis Grok 4.20 analysis page | Third-party benchmark comparison page with sourced tables and transparent methodology. Treat this as accepted tier-3 benchmark evidence.
Editorial excerpt
Claude Sonnet 4.6
AI-generated
Best if you want near-flagship Claude performance for everyday coding, documents, and knowledge work without paying flagship prices.
Claude Sonnet 4.6 is Anthropic's everyday AI model, released in February 2026, and the default for all free and standard subscribers. It approaches Opus-level intelligence at a price point that makes it practical for far more tasks Anthropic - making it the best value option in the Claude lineup. It handles writing, research, document analysis, and everyday questions with impressive accuracy and speed. It can hold entire codebases, lengthy contracts, or dozens of research papers in a single session Eesel AI, and reasons effectively across all of it. Early users report near human-level capability in tasks like navigating complex spreadsheets or filling out multi-step web forms. Anthropic Best suited for users who want a fast, reliable, and highly capable AI assistant for daily personal or professional use without needing the deepest reasoning that Opus offers
Editorial excerpt
Grok 4.20 Beta
AI-generated
Strong HLE, SWE-bench Verified, and GPQA evidence make Grok 4.20 Beta publishable now, but speed metrics are still unavailable in the current snapshot.
Grok 4.20 Beta is ready to enter the published roster on benchmark evidence, but buyer-facing speed guidance remains incomplete until OpenRouter performance metrics are captured.
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