Head-to-Head Comparison

Claude vs Grok 4.5 — Anthropic Against xAI's Latest vs

Claude leads on careful reasoning and long-form output. Grok 4.5 brings live X data and xAI's latest reasoning. We scored both across 34 criteria.

👁 817 views 📅 First compared Jul 23, 2026 📊 0 of 34 criteria comparable 🕓 One tool not yet scored · other reviewed Oct 2026

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Claude (Opus 5.5 / Sonnet 5.5 / Haiku 5.5)

Anthropic

Helpful, harmless, and honest AI

Free / $17/mo Pro annual, $20 monthlyFree tierAPIAgents

Intelligence

9.3

Coding

9.2

Creativity

7.6

Usability

8.6

Pricing

9.3

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Grok 4.5

xAI

xAI's frontier model — AA Index #2, $2/$6/M, 64.7% SWE-bench Pro

Free (with limits) / $30/mo SuperGrokFree tierAPIAgents

Intelligence

—

Coding

—

Creativity

—

Usability

—

Pricing

—

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📝 Text ✓ ✓

🖼️ Image ✓ ✓

🎤 Voice ✗ ✓

🎬 Video ✗ ✗

💻 Code ✓ ✓

🤖 Agents ✓ ✓

🔌 API ✓ ✓

🆓 Free ✓ ✓

📖 Open Source ✗ ✗

Criterion

Claude (Opus 5.5 / Sonnet 5.5 / Haiku 5.5)

Grok 4.5

🧠 Core Intelligence

9.3 —

Overall IntelligenceComposite AI intelligence rating

9.5

—

Reasoning AbilityLogical / chain-of-thought

9.5

—

Factual AccuracyCorrectness on knowledge queries

9.3

—

Context HandlingLong-context / big document handling

9.2

—

Instruction FollowingComplex prompt adherence

9.4

—

Hallucination ResistanceHigher = less hallucination

8.8

—

💻 Technical & Coding

9.2 —

Coding (General)Broad software development tasks

9.5

—

Debugging SkillFinding & fixing bugs

9.3

—

Code ExplanationExplaining code in plain English

9.4

—

Multi-language SupportPython, JS, C#, Go, Rust…

8.8

—

System DesignArchitecture & scalability

9.2

—

API / IntegrationREST, GraphQL, SDK knowledge

9.0

—

🎨 Creativity & Content

7.6 —

CreativityOriginality and novel ideas

8.8

—

Writing QualityBlogs, articles, long-form

9.5

—

Marketing CopyAds, headlines, hooks

8.7

—

StorytellingNarrative & fiction

8.8

—

Image GenerationNULL if not supported

1.0

— (N/A)

Design UnderstandingUI/UX suggestions

8.5

—

🧑‍💼 Practical Use Cases

9.0 —

Business UseReports, strategy, analysis

9.3

—

SEO ContentSearch-optimised writing

8.0

—

Research & SummarizationCondensing complex info

9.3

—

Productivity AutomationTask & workflow automation

9.2

—

Agent CapabilityAutonomous multi-step workflows

9.4

—

⚡ Performance & Usability

8.6 —

SpeedResponse latency

8.8

—

Ease of UseUX and onboarding

9.0

—

CustomizationPrompts, tools, plugins

8.8

—

Memory / PersonalizationCross-session memory

8.8

—

Multimodal SupportText, image, voice, video

7.5

—

🔒 Reliability & Ecosystem

9.2 —

Reliability / StabilityUptime and consistent output

9.0

—

EcosystemPlugins, API, integrations

9.3

—

💰 Pricing & Enterprise

9.3 —

Pricing ValueValue for money

9.2

—

API PricingCost per token / call

9.3

—

Enterprise ReadinessSSO, SLA, admin controls

9.4

—

Privacy & SecurityData handling & compliance

9.3

—

Feature Support

Feature	Claude (Opus 5.5 / Sonnet 5.5 / Haiku 5.5)	Grok 4.5
Text generation	✓	✓
Image generation	✓	✓
Voice / audio	✗	✓
Video	✗	✗
Code assistance	✓	✓
Agent / autonomy	✓	✓
Public API	✓	✓
Free tier	✓	✓
Open source	✗	✗

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Our Verdict

Grok 4.5 has not been scored yet, so no head-to-head verdict is possible. Claude (Opus 5.5 / Sonnet 5.5 / Haiku 5.5)'s individual scores are shown above, and feature support for both tools is compared below.

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Claude vs Grok 4.5 — Anthropic Against xAI's Latest vs

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