PickAIModel.com - Compare Claude Opus 5 and Grok 4.5
Claude Opus 5 vs Grok 4.5: 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.
Provisional evidenceProvisional evidence
Claude Opus 5 Quality
100.0
Grok 4.5 Quality
51.1
Quality delta
+48.9Claude Opus 5 leads
Value delta
-28.1Grok 4.5 leads
Buyer summary
Claude Opus 5 leads Quality by 48.9 points. Grok 4.5 leads Value by 28.1 points.
Shared roster
Both pages link back to the same published roster and methodology, so the comparison stays on one deterministic evidence set.
This model is still under editorial review. We will publish a verdict as soon as we have completed our review of the AI model.
Monthly price
Grok: Price unavailable
App access
Grok
Conversation benchmark
Unavailable
Verified vendor fact
Consumer plan pricing was not available in the current snapshot.
Verified vendor fact
Hosted app availability is grounded in the current official vendor surface.
Deterministic scores
Quality and Value comparison
Claude Opus 5
Q 100.0
V 40.0
Quality rank 1 and value rank 3 in the current published roster.
Grok 4.5
Q 51.1
V 68.1
Quality rank 5 and value rank 1 in the current published roster.
Buyer access
Pricing, app access, and Conversation Value
Claude Opus 5
Verified vendor fact3K tokens/chat
Claude Pro: $20/month
~392 chats
Hosted app: Claude
Grok 4.5
Verified vendor fact3K tokens/chat
Grok: Price unavailable
Unavailable
Hosted app: Grok
Benchmark evidence
Claude Opus 5
Verified evidence
Humanity's Last Exam
Normalized quality input
52.6%
Artificial Analysis Claude Opus 5 evaluation | Independent text-only HLE evaluation using adaptive reasoning at maximum effort over the 2,158-question set.
SWE-Bench Pro
Normalized quality input
79.2%
Anthropic Claude Opus 5 system card | Vendor-reported SWE-Bench Pro result using adaptive thinking at maximum effort, default sampling settings, averaged over five trials.
Terminal-Bench 2.1
Agentic terminal task completion
89.0%
Artificial Analysis Claude Opus 5 analysis | Independent Terminal-Bench 2.1 result for Claude Opus 5 at maximum effort.
GPQA Diamond
Normalized quality input
93.2%
Artificial Analysis Claude Opus 5 evaluation | Supplementary GPQA evidence is optional and is not a scored PickAI input.
Benchmark evidence
Grok 4.5
Verified evidence
Humanity's Last Exam
Normalized quality input
40.3%
Artificial Analysis Grok 4.5 high evaluation | Independent exact Grok 4.5 high result; do not substitute another Grok reasoning configuration.
AA-Omniscience
AA-Omniscience Index
26.0
Artificial Analysis AA-Omniscience evaluation | Independent Artificial Analysis result for Grok 4.5 (high). Display-only; this row does not affect Quality or Value scores.
SWE-Bench Pro
Normalized quality input
64.7%
xAI Grok 4.5 release | Vendor-reported exact Grok 4.5 SWE-Bench Pro resolve rate; retain the published harness context.
Terminal-Bench 2.1
Agentic terminal task completion
83.3%
xAI Grok 4.5 release | Vendor-reported exact Grok 4.5 Terminal-Bench 2.1 result; tool use is intrinsic to the harness.
Editorial excerpt
Claude Opus 5
AI-assisted, editorially reviewed
Anthropic's Opus successor pairs frontier reasoning and coding results with premium $5/$25 token pricing.
Claude Opus 5 combines a 1M-token context window with strong exact-variant HLE and SWE-Bench Pro results. Its $5 per million input-token and $25 per million output-token prices keep it in the premium tier, so it is best reserved for work where capability matters more than unit cost.
Editorial excerpt
Grok 4.5
AI-assisted, editorially reviewed
This model is still under editorial review. We will publish a verdict as soon as we have completed our review of the AI model.
This model is still under editorial review. We will publish a verdict as soon as we have completed our review of the AI model.
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