PickAIModel.com - Compare Claude Opus 4.6 and Grok 4.20 Beta
Claude Opus 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 Opus 4.6 Quality
95.7
Grok 4.20 Beta Quality
62.3
Quality delta
+33.4Claude Opus 4.6 leads
Value delta
-46.9Grok 4.20 Beta leads
Buyer summary
Claude Opus 4.6 leads Quality by 33.4 points. Grok 4.20 Beta leads Value by 46.9 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.
Best if your work involves genuinely hard problems ? deep research, complex code, or legal and financial analysis ? where accuracy matters more than speed.
Monthly price
Claude Pro: $20/month
App access
Claude
Ease of use
90% | Ready to use
Verified vendor fact
Consumer plan pricing is grounded in the current official vendor plan page.
Verified vendor fact
Hosted app availability is grounded in the current official vendor surface.
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 Opus 4.6
Q 95.7
V 40.0
Quality rank 1 and value rank 14 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 Opus 4.6
Verified vendor fact90% ease of use
Claude Pro: $20/month
~77 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 Opus 4.6
Verified Apr 7, 2026
Humanity's Last Exam
Normalized quality input
34.44%
Official HLE leaderboard | Replaces the prior non-thinking HLE row.
SWE-bench Verified
Normalized quality input
80.8%
Anthropic Claude Opus 4.6 launch page | Anthropic official launch material. Results are vendor-reported and may use model-specific harness settings that must be compared cautiously.
ARC-AGI-2
Novel pattern reasoning
68.8%
ARC Prize leaderboard | ARC-AGI-2 is shown as supplementary evidence only and is not currently included in the PickAI Quality Score.
MRCR v2
1M retrieval
70.0%
Anthropic Claude Opus 4.6 launch page | Anthropic official launch and system-card materials. Results are vendor-reported and may use model-specific harness settings that must be compared cautiously.
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 Opus 4.6
AI-generated
Best if your work involves genuinely hard problems ? deep research, complex code, or legal and financial analysis ? where accuracy matters more than speed.
Claude Opus 4.6 is Anthropic's most powerful AI assistant, released in February 2026. It stands out for its depth of reasoning and its ability to handle long, complex tasks without losing focus. Users consistently describe conversations as feeling more like working with a thoughtful colleague than a chatbot. It excels at research, writing, legal and financial analysis, and summarising large volumes of information. It can read and work across very large documents in a single session - entire contracts, reports, or research archives at once. Independent reviewers rate it as the most capable model available for knowledge-intensive professional work. Considered the strongest choice for users who need careful, nuanced responses rather than just fast ones.
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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