GPT-4.5
OpenAI's most capable and efficient model for professional work. Native computer use, 1M context window, and 47% fewer tokens on tool-heavy workflows.
Code work, done right
Built specifically for software tasks. The right model when code quality matters.
Native Computer Use
The first general-purpose OpenAI model with computer use built in. Issues mouse and keyboard commands via screenshots. 75% on OSWorld-Verified — exceeding the human performance baseline of 72.4%.
1M Token Context
One million token context window available in API and Codex. Handles entire codebases, long documents, and persistent multi-session research without losing track of prior context.
Tool Efficiency
47% reduction in token usage on tool-heavy workflows without accuracy loss. Built for large MCP server ecosystems and rapid Codex iteration, with up to 1.5x faster token velocity in fast mode.
Deep Web Research
82.7% on BrowseComp — a 17 percentage point improvement over the previous version. Persistent, multi-source research across dozens of pages without losing context.
What you can ask GPT-4.5 to do
Codex handles the full software development lifecycle from writing to debugging to documentation.
- Navigate a complex desktop workflow using mouse and keyboard commands
- Run a persistent multi-source research task across dozens of web pages
- Process and reason across a 500K-token codebase
- Build a professional spreadsheet model from a raw data brief
- Write a data processing function from a natural language description
- Review a pull request and identify potential issues
- Draft a technical specification from a product brief
- Debug a failing test and explain the root cause in plain language
All models available on Kuse
Switch models mid-conversation. Each model stays in your workspace history.
| Model | Best For | Speed | Cost |
|---|---|---|---|
| Claude Opus | Deep analysis, high-stakes documents, complex code | Moderate | $$$ |
| Claude Sonnet | Everyday tasks, fast drafts, most workflows | Fast | $$ |
| GPT-5.5 | General purpose, strong reasoning and coding | Fast | $$$ |
| GPT-4.5 | Code generation, review, and debugging | Fast | $$ |
| Gemini Pro | Multimodal tasks, Google Workspace integration | Fast | $$ |
| Gemini Flash | Quick replies, simple tasks, budget-conscious use | Very fast | $ |