GPT-5 Codex V/S Claude Code & GLM Code: Should YOU SWITCH?

Key Concepts:

• GPT5 Codeex: An improved version of GPT5 specifically enhanced for agentic tasks and coding.
• Agentic Tasks: Tasks that require an AI agent to plan, execute, and adapt to achieve a goal.
• Token Usage: The number of tokens used by a language model to process a request, affecting cost and speed.
• CodeBuff: A coding AI model known for its high performance but also high cost.
• Ninja Chat: An all-in-one AI platform offering access to multiple AI models.
• TMDB API: The Movie Database API, used for fetching movie information.
• Expo App: A framework for building cross-platform mobile applications.
• Bubble T: A Go framework for building terminal user interfaces.
• Godo: A free and open-source game engine.
• GDScript: Godo's custom scripting language.
• Open Code Repo: An open-source code repository.
• SVG Creation Modal: A user interface element for creating Scalable Vector Graphics.
• GLM Code: A coding AI model known for its affordability.
• Rode/Klein: Tools or platforms that integrate with coding AI models.
• RU (likely referring to a coding AI tool or extension): A coding AI tool or extension.
• GPT5 Mini: A smaller, potentially more cost-effective variant of GPT5.

GPT5 Codeex Overview:

• OpenAI has launched an improved GPT5 Codeex model, designed for agentic tasks and coding, especially within the Codeex environment.
• The model is integrated into Codeex tools and is claimed to be better at coding, cost less (using 90% fewer tokens), and be faster for most tasks.
• It can also "think for longer" on complex tasks.

Performance Benchmarks and Comparisons:

• The presenter has been testing agentic tasks using four benchmarks.
• Previously, CodeBuff was the top performer but was expensive. The previous GPT5 Codeex was the lowest scorer.
• The new GPT5 Codeex is being evaluated against these benchmarks.
• In creating a movie tracker Expo app using the TMDB API, GPT5 Codeex produced a functional app, but with a different design style. It was considered "good" but not as good as CodeBuff or Claude. It lacked a movie details page.
• For creating a visual calculator in the terminal using Go and Bubble T, GPT5 Codeex performed "awesome" and used very few tokens.
• When asked to edit an FPS game made in Godo, GPT5 Codeex failed, producing syntax errors and attempting to write Python instead of GDScript.
• In editing an open code repo to add an SVG creation modal, GPT5 Codeex failed, as it required editing multiple files. CodeBuff was the only one that passed this test.
• Overall, the new GPT5 Codeex is considered better than Claude Code and takes the second spot under CodeBuff.

Ninja Chat Advertisement:

• Ninja Chat is an all-in-one AI platform offering access to models like GPT40, Claude 4, Sonnet, and Gemini 2.5 Pro for $11 per month.
• Features include an AI playground for comparing responses and a mind map generator.
• The basic plan includes 1,000 messages, 30 images, and 5 videos monthly.
• Discount codes "king25" (25% off any plan) and "king40yearly" (40% off annual subscriptions) are provided.

Using GPT5 Codeex:

• Accessing GPT5 Codeex requires upgrading Codeex with a command.
• It's available to ChatGPT subscribers, with message limits ranging from 30 to 150 messages per 5 hours on the $20 plan.
• Pro users get 300 to 1,500 messages.
• The presenter expresses uncertainty about the wide range of message limits.
• The usage is similar to previous versions, as detailed in the presenter's Deepseek Codeex video.

Pricing and Alternatives:

• The presenter considers the $3 GLM coding plan unbeatable for students or those on a budget.
• He hopes the API for GPT5 Codeex will be released for use in tools like Rode or Klein.
• He prefers the Codeex VS Code extension for its lower memory usage compared to RU, but acknowledges RU's superior performance.
• Combining Codeex with RU could create a strong alternative to Sonnet.

OpenAI's Direction:

• The presenter is pleased that OpenAI is focusing on building useful tools instead of just maximizing benchmarks.
• He hopes for a GPT5 Mini Codeex variant that costs less.

Conclusion:

The new GPT5 Codeex is a significant improvement over its predecessor, offering better performance, lower token usage, and faster processing. While it still has limitations in specific areas like Godo game development and complex multi-file edits, it outperforms Claude Code and positions itself as a strong contender, especially if the pricing remains competitive. The presenter is optimistic about its potential and hopes for further developments, including API access and a more affordable "mini" version.