Meta's internal development situation has drawn widespread attention. Recently, an engineer revealed that the company has stopped using its own Llama model and instead opted for Claude Sonnet for code writing. This change seems to indicate Meta's disappointment with Llama, especially after the release of Llama4, which received many negative reviews.
Within 36 hours of Llama4's release, users continuously criticized its functionality, and it later became involved in controversies over large model rankings, damaging its reputation. Now, even Meta's internal teams no longer trust this self-developed model, raising doubts about whether there will be a Llama5 in the future. At the same time, Zuckerberg's newly established "Meta Super Intelligence Lab" (MSL) is developing the next-generation model in parallel with the existing generative AI team, but it has not yet revealed whether it will continue to use the Llama brand name.
Image source note: The image was generated by AI, and the image licensing service provider is Midjourney
Zuckerberg mentioned in a memo that Llama-4.1 and 4.2 are currently under development. Despite this, a departing employee made sharp criticisms about Meta's cultural issues. He pointed out that the generative AI team at Meta faces a culture of fear and a lack of vision, which have seriously affected the success of the project. Although Meta has invested heavily in the AI field and recruited many excellent talents, these internal issues still plague the company.
After switching to Claude, Meta's engineers found that their code writing capabilities significantly improved. As a new AI programming tool, Claude has gained the favor of many developers. Some Apple developers even said that in a project with 20,000 lines of code, they personally wrote less than 1,000 lines, and most of the work was completed by Claude.
In addition, the company behind Claude, Anthropic, has also achieved significant commercial success, with annualized revenue reaching $4 billion, nearly quadrupling since the beginning of the year. This growth rate shows Claude's strong performance in the market.
For Meta, although it is about to increase its investment in the next generation of Llama, choosing to switch tools beforehand to ensure the efficiency of engineers' work is an admission of Llama's poor performance.
