Codeium vs GrammarlyGO (2026)
A head-to-head comparison to help you pick the right tool
Last updated: May 13, 2026
Codeium
Codeium is a free AI coding assistant offering code completion and chat, supporting 70+ languages and all major IDEs.
GrammarlyGO
GrammarlyGO is Grammarly's generative AI writing assistant that helps compose, rewrite and ideate directly in your existing workflow.
Pros
- ✓Completely free for individuals
- ✓70+ languages supported
- ✓Fast completions
- ✓Good IDE support
Cons
- ✗Less powerful than Copilot on complex tasks
- ✗Smaller company backing
- ✗Enterprise features cost more
Pros
- ✓Works everywhere Grammarly works
- ✓Great for improving existing writing
- ✓Tone detection
- ✓Trusted brand
Cons
- ✗Requires Grammarly subscription
- ✗Less powerful for long-form creation
- ✗Better at editing than generating
Codeium vs GrammarlyGO: Side by Side
| Factor | Codeium | GrammarlyGO |
|---|---|---|
| User Rating | N/A | N/A |
| Category | AI Coding Assistants | AI Writing Tools |
| Pricing Model | Free for individuals, Teams from $12/month | Included in Grammarly Premium from $12/month |
| Starting Price | Contact for pricing | Contact for pricing |
| Best For | Individual developers wanting free AI code completion | Professionals who want AI writing help built into their existing Grammarly workflow |
| Our Pick | — | — |
Codeium Features
- ✓Code completion
- ✓AI chat
- ✓70+ language support
- ✓IDE plugins
- ✓Codebase context
GrammarlyGO Features
- ✓AI text generation
- ✓Rewriting suggestions
- ✓Tone adjustment
- ✓Ideation prompts
- ✓Chrome extension
Pricing Comparison
Our Take
Choose Codeium if individual developers wanting free ai code completion. Choose GrammarlyGO if professionals who want ai writing help built into their existing grammarly workflow.
Frequently Asked Questions
What is the difference between Codeium and GrammarlyGO?
Codeium is best for individual developers wanting free ai code completion. GrammarlyGO is best for professionals who want ai writing help built into their existing grammarly workflow.
Which is better, Codeium or GrammarlyGO?
Choose Codeium if individual developers wanting free ai code completion. Choose GrammarlyGO if professionals who want ai writing help built into their existing grammarly workflow.
How much does Codeium cost?
Visit Codeium website for current pricing.
How much does GrammarlyGO cost?
Visit GrammarlyGO website for current pricing.
Who should use Codeium?
Individual developers wanting free AI code completion
Who should use GrammarlyGO?
Professionals who want AI writing help built into their existing Grammarly workflow