Head-to-Head Comparison

Claude Fable 5 vs OpenAI Codex

A detailed head-to-head comparison of Claude Fable 5 (Anthropic) and OpenAI Codex (OpenAI) across 34 scored criteria.

👁 11 views 📅 First compared Jul 22, 2026 📊 34 criteria scored

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Different tool categories Claude Fable 5 is categorised as General AI while OpenAI Codex is categorised as Coding. These tools serve different primary use cases — scores for criteria outside their category may be zero or estimated.

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Claude Fable 5

Anthropic

#1 on SWE-bench Pro (80.4%) — Anthropic's most capable model

$20/mo (Pro) / $100/mo (Max)APIAgents

Intelligence

—

Coding

—

Creativity

—

Usability

—

Pricing

—

Visit website ↗

🏆 Winner

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OpenAI Codex

OpenAI

Autonomous coding agent by OpenAI — built into ChatGPT, beats rivals on OSWorld GUI tasks

Included in ChatGPT Plus ($20/mo)Free tierAPIAgents

Intelligence

9.2

Coding

9.3

Creativity

8.5

Usability

9.0

Pricing

8.4

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Why trust this comparison? AIToolsRecap independently scores AI tools across 34 criteria. Trusted by 1,400+ AI practitioners · No sponsored rankings · No affiliate bias.

★★★★★

📝 Text ✓ ✓

🖼️ Image ✓ ✓

🎤 Voice ✓ ✗

🎬 Video ✗ ✗

💻 Code ✓ ✓

🤖 Agents ✓ ✓

🔌 API ✓ ✓

🆓 Free ✗ ✓

📖 Open Source ✗ ✗

Criterion

Claude Fable 5

OpenAI Codex

🧠 Core Intelligence

— 9.2

Overall IntelligenceComposite AI intelligence rating

—

9.2

Reasoning AbilityLogical / chain-of-thought

—

9.5

Factual AccuracyCorrectness on knowledge queries

—

9.3

Context HandlingLong-context / big document handling

—

9.0

Instruction FollowingComplex prompt adherence

—

9.2

Hallucination ResistanceHigher = less hallucination

—

8.8

💻 Technical & Coding

— 9.3

Coding (General)Broad software development tasks

—

9.5

Debugging SkillFinding & fixing bugs

—

9.5

Code ExplanationExplaining code in plain English

—

9.3

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

—

9.2

System DesignArchitecture & scalability

—

9.0

API / IntegrationREST, GraphQL, SDK knowledge

—

9.3

🎨 Creativity & Content

— 8.5

CreativityOriginality and novel ideas

—

8.5

Writing QualityBlogs, articles, long-form

—

8.8

Marketing CopyAds, headlines, hooks

—

8.5

StorytellingNarrative & fiction

—

8.0

Image GenerationNULL if not supported

— (N/A)

8.5

Design UnderstandingUI/UX suggestions

—

8.5

🧑‍💼 Practical Use Cases

— 8.8

Business UseReports, strategy, analysis

—

9.0

SEO ContentSearch-optimised writing

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8.0

Research & SummarizationCondensing complex info

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8.8

Productivity AutomationTask & workflow automation

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9.2

Agent CapabilityAutonomous multi-step workflows

—

9.2

⚡ Performance & Usability

— 9.0

SpeedResponse latency

—

9.0

Ease of UseUX and onboarding

—

9.5

CustomizationPrompts, tools, plugins

—

9.0

Memory / PersonalizationCross-session memory

—

8.8

Multimodal SupportText, image, voice, video

—

8.8

🔒 Reliability & Ecosystem

— 9.4

Reliability / StabilityUptime and consistent output

—

9.3

EcosystemPlugins, API, integrations

—

9.5

💰 Pricing & Enterprise

— 8.4

Pricing ValueValue for money

—

8.0

API PricingCost per token / call

—

7.5

Enterprise ReadinessSSO, SLA, admin controls

—

9.2

Privacy & SecurityData handling & compliance

—

9.0

Feature Support

Feature	Claude Fable 5	OpenAI Codex
Text generation	✓	✓
Image generation	✓	✓
Voice / audio	✓	✗
Video	✗	✗
Code assistance	✓	✓
Agent / autonomy	✓	✓
Public API	✓	✓
Free tier	✗	✓
Open source	✗	✗

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Our Verdict

OpenAI Codex leads on overall intelligence (9.2 vs 0.0). OpenAI Codex is the stronger pick for coding. OpenAI Codex shines for writing and content. For speed OpenAI Codex has the edge, and on pricing value OpenAI Codex offers more for the money.

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