Multiple AI Models.Your Choice.

Why settle for one AI when different models excel at different tasks? Code350 gives you access to Claude, GPT Codex, and Grok — choose based on your coding style and project needs.

Available AI Models

Claude Sonnet 4.5

Thoughtful, Safe, and Capable

Claude Sonnet 4.5 combines exceptional reasoning with a focus on helpful, harmless, and honest responses. Known for nuanced understanding of complex codebases, clear explanations, and careful consideration of edge cases. Claude excels at understanding context and providing well-reasoned solutions.

Key Strengths

  • Deep contextual understanding of large codebases
  • Exceptionally clear explanations and documentation
  • Strong reasoning about edge cases and potential bugs
  • Careful consideration of security implications
  • Natural conversational coding assistance

Best For

  • Complex refactoring and architecture decisions
  • Code review and debugging
  • Learning and understanding new codebases
  • Projects requiring thorough documentation
Learn more about Claude Sonnet 4.5(opens in new tab)

GPT 5.2 Codex

The Original AI Coding Pioneer

GPT 5.2 Codex builds on OpenAI's legacy of pioneering AI code generation. With extensive training on code repositories and natural language, Codex delivers fast, practical solutions. It's particularly strong at translating natural language descriptions into working code across many languages and frameworks.

Key Strengths

  • Rapid code generation from natural language
  • Broad knowledge of programming languages and APIs
  • Strong at completing and extending existing code
  • Excellent at standard patterns and common tasks
  • Fast iteration on implementation details

Best For

  • Quick prototyping and scaffolding
  • Implementing common patterns and integrations
  • Translating pseudocode to working code
  • Multi-language projects
Learn more about GPT 5.2 Codex(opens in new tab)

Grok 4.1 Fast

Massive Context, Vision-Capable, Fast

Grok 4.1 Fast from xAI is built for high-throughput coding work. A 2-million-token context window means it can hold entire codebases at once, and native vision lets you paste screenshots, design mocks, or PDFs directly into chat. Sub-second first-token latency keeps the conversation snappy, and aggressive caching keeps costs low — making it the everyday workhorse when you don't need Claude-level reasoning.

Key Strengths

  • 2M-token context window — load entire repos at once
  • Native vision: screenshots, mockups, and PDFs in chat
  • Sub-second first-token latency for snappy iteration
  • Implicit prompt caching keeps long sessions cheap
  • Direct, no-nonsense coding suggestions

Best For

  • Working across many files in a large codebase
  • Reviewing or implementing from a design screenshot
  • Rapid iteration where latency matters
  • Long chat sessions on the same project
Learn more about Grok 4.1 Fast(opens in new tab)

Why Multiple Models Matter

Each AI model has unique training, architecture, and strengths. Access to multiple models means better results for diverse coding tasks.

Different Thinking Styles

Claude reasons carefully through problems. Codex generates solutions quickly. Grok handles massive context and vision at speed. Different perspectives lead to better code.

Specialized Strengths

Need thorough code review? Try Claude. Rapid prototyping? Use Codex. Latest API knowledge? Ask Grok. Match the model to the task for optimal results.

No Vendor Lock-in

AI capabilities evolve rapidly. By supporting multiple providers, you're never stuck with yesterday's best model. Switch freely as the landscape changes.

Simple Token Pricing

All models use the same unified token system. No need to worry about different pricing tiers for different models — use whichever AI fits your current task.

  • One token balance for all models
  • Switch between models freely
  • Purchased tokens never expire

Free tier includes

100K

tokens / month

Free tokens work with Claude Haiku only.
Subscribe to unlock all premium models.

View All Plans

Start Coding with AI Today

Try all three AI models with your free account. Find your favorite coding companion.