ClaudeAI Coding Assistants
vs
CodexAI Coding Assistants
Comparison · AI Coding Assistants · weekly run Nov 3
Claude vs Codex
Which one do AI engines recommend, and how do they differ on price, fit and features?
The short answer
Claude is the stronger AI pick in AI Coding Assistants: it has a visibility score of 47.5 versus 20.9 for Codex, and ranks ahead in 75% of the answers that name both.
Choose Claude if…
- You want the brand AI engines rank higher (47.5 vs 20.9)
- You need a self-hosted or on-premises option
- You need SOC 2 Type I or SOC 2 Type II or ISO 27001:2022 or ISO/IEC 42001:2023 or HIPAA coverage
- Strong deep reasoning and architectural understanding
Choose Codex if…
- AI answers describe it more positively (64% vs 53% positive)
- Strong for autonomous coding tasks
- Frequently included in top AI coding shortlists
- Enterprise-scale engineering adoption
AI visibility side by side
Latest weekly run · Nov 3
| Metric | Claude | Codex |
|---|---|---|
| Visibility score | 47.5% | 20.9% |
| Change vs last week | New | New |
| Rank in AI Coding Assistants | #3 | #4 |
| Share of voice | 11% | 5.4% |
| Mentions this run | 54 | 28 |
| Positive in AI answers | 53% | 64% |
The stronger value in each row is marked with a ✓.
Visibility score trend
Weekly runs over the last 60 days
Claude 0pp · Codex 0pp over 0 weekly runs.
Engine by engine
Claude leads on 3 of 3 engines
ChatGPT
AI Mode
Perplexity
ClaudeCodex
Head to head in AI answers
28 engine answers name both brands
21Claude ranked higher
7Codex ranked higher
| Prompt | Engine | Claude | Codex |
|---|---|---|---|
| What features matter most in an AI coding assistant? | ChatGPT | #3 | #4 |
| What is the difference between an AI coding assistant and Low-Code & No-Code? | ChatGPT | #4 | #3 |
| What should an AI coding assistant integrate with? | ChatGPT | #5 | #4 |
| What are the best AI coding assistant tools in 2026? | ChatGPT | #2 | #4 |
| What are the best AI coding assistant tools in 2026? | AI Mode | #2 | #4 |
| What are the best AI coding assistant tools in 2026? | Perplexity | #3 | #4 |
| Top AI coding assistant options for B2B SaaS companies | ChatGPT | #2 | #4 |
| Top AI coding assistant options for B2B SaaS companies | Perplexity | #3 | #4 |
| Best AI coding assistant for startups | ChatGPT | #2 | #4 |
| Best AI coding assistant for enterprise | ChatGPT | #3 | #5 |
| Compare the leading AI coding assistant platforms | ChatGPT | #3 | #4 |
| Compare the leading AI coding assistant platforms | Perplexity | #3 | #4 |
Features, pricing & fit
| Dimension | Claude | Codex |
|---|---|---|
| Deployment | Claude Code can be deployed through Amazon Bedrock, Google Cloud and Microsoft Foundry, and self-hosted sessions run on the customer's own infrastructure. | Cloud-hosted agent, with local CLI, IDE extension and desktop app surfaces. |
| Compliance | SOC 2 Type I, SOC 2 Type II, ISO 27001:2022, ISO/IEC 42001:2023, HIPAA | — |
| Founded | — | 2025 |
| Headquarters | San Francisco, California | — |
| Funding | Series G | — |
| Best for | — | Software engineers who want an AI agent to handle coding tasks such as writing code and fixing bugs. |
Pros and cons
Themes from the AI answers that mention each brand
Claude
- Strong deep reasoning and architectural understanding
- Handles complex multi-file work and large codebases
- Effective autonomous agentic coding in terminal workflows
- Transparent, clearly named paid tiers
- Widely adopted among developers
Codex
- Strong for autonomous coding tasks
- Frequently included in top AI coding shortlists
- Enterprise-scale engineering adoption
- Deterministic multi-step task execution for OpenAI-first teams
- Delegated engineering tasks, code review, and cloud or parallel agent workflows
- Appears less consistently in enterprise analyst lists
Data collected ·ChatGPT, Perplexity, Google AI Mode·coverage 100%·next run
Cite as: SlateIndex, “Claude vs Codex”, https://slateindex.ai/compare/claude-vs-codex, data of Nov 3, 2026. Licence: CC BY 4.0.