Makes sense that MS would partner with Anthropic since their tool-use for productivity (Claude Code) seems superior. I personally rarely code with ChatGPT, almost strictly Claude.
Surely Microsoft's expertise these days is in cross-selling passable but not best-in-class products to enterprises who already pay for Microsoft products.
It says something about how they view the AI coding market, or perhaps the level of the gap between Anthropic and OpenAI here, that they've gone the other way.
Why is Azure popular? Not on its own merits, it's because there is a pre-existing relationship with Microsoft.
Why is Teams the most widely used chat tool? Certainly not because it's good.. it is, again, pre-existing business relationships.
Seems odd for a company that survives (perhaps even thrives) on these kinds of intertwined business reasons to, themselves, understand that they should go for merit instead.
The other way around worked (Google could use Entra) but it was basically impossible to backend Entra from Google. Weird.
I think Microsoft views models as a commodity and they'd rather lean into their strengths as a tool maker, so this is Microsoft putting themselves into a position to make tools around/for any AI/LLM model, not just ones they have a partnership with.
Honestly I think this sort of agnosticism around AI will work out well for them.
Overall, I think Google has a better breadth of knowledge encoded, but Anthropic gets work done better.
I've fed into several models my past reddit comments (with the comments it's responding to) and asked it to duplicate the style. Claude has always been the only thing that comes even close to original responses that even I think would be exactly my response, wording and all.
GPT or Gemini will just borrow snippets from the example text and just smoosh it together to make semi-coherent points. Scratch that. They're coherent, but they're just unmistakably not from me.
Even the bench marks don’t seem all that helpful.
I often would use Claude to do a “make it pretty” pass after implementation with GPT-5. I find Claude’s spatial and visual understanding when dealing with frontend to be better.
I am sure others will have the exact opposite experience.
But after openai started gatekeeping all their new decent models in the api, i will happily refuse to buy more credits, and rather use foss models from other providers (I wish claude had proper no log policies).
On the other hand, I wish ChatGPT had GitHub integration in Projects, not just in Codex.
I've also had Claude Sonnet 4.0 Thinking spew forth incorrect answers many times for complex problems involving some math (with incapability to write a former proof sometimes), whereas ChatGPT 5 Thinking gives me correct answers with formal proof.
I can confirm Sonnet is good for vibe coding but makes an absolute mess of large and complex codebases, while GPT5 tends to be pretty respectful.
Feels like an area where we could use more competition...