The real issue is that there is no reliable system currently in place for the end user (other than being willing to burn the cash and run your own benchmarks regularly) to detect changes in performance.
It feels to me like a perfect storm. A combination of high cost of inference, extreme competition, and the statistical nature of LLMs make it very tempting for a provider to tune their infrastructure in order to squeeze more volume from their hardware. I don't mean to imply bad faith actors: things are moving at breakneck speed and people are trying anything that sticks. But the problem persists, people are building on systems that are in constant flux (for better or for worse).
Again, I'm not claiming malicious intent. But model performance depends on a number of factors and the end-user just sees benchmarks for a specific configuration. For me to have a high degree of confidence in a provider I would need to see open and continuous benchmarking of the end-user API.
All those are completely irrelevant. Quantization is just a cost optimization.
People are claiming that Anthropic et all changes the quality of the model after the initial release, which is entirely different and the industry as a whole has denied. When a model is released under a certain version, the model doesn’t change.
The only people who believe this are in the vibe coding community, believing that there’s some kind of big conspiracy, but any time you mention “but benchmarks show the performance stays consistent” you’re told you’re licking corporate ass.
I might be misunderstanding your point, but quantization can have a dramatic impact on the quality of the model's output.
For example, in diffusion, there are some models where a Q8 quant dramatically changes what you can achieve compared to fp16. (I'm thinking of the Wan video models.) The point I'm trying to make is that it's a noticeable model change, and can be make-or-break.
Of course, no one is debating that. What’s being debated is whether this is done after a model’s initial release, eg Anthropic will secretly change the new Opus model to perform worse but be more cost efficient in a few weeks.
That’s not the point — it’s just a day in the life of ops to tweak your system to improve resource utilization and performance. Which can cause bugs you don’t expect in LLMs. it’s a lot easier to monitor performance in a deterministic system, but harder to see the true impact a change has to the LLM
The real issue is that there is no reliable system currently in place for the end user (other than being willing to burn the cash and run your own benchmarks regularly) to detect changes in performance.
It feels to me like a perfect storm. A combination of high cost of inference, extreme competition, and the statistical nature of LLMs make it very tempting for a provider to tune their infrastructure in order to squeeze more volume from their hardware. I don't mean to imply bad faith actors: things are moving at breakneck speed and people are trying anything that sticks. But the problem persists, people are building on systems that are in constant flux (for better or for worse).