Like 3.5, 3.5 new (??), 3.7 etc! Everyone in this sub talks so positively about them, I'm so curious!
They sound like a blast lol I wish I got to meet em, I know I would've liked them because I will try every model from every company.
Okay okay so
Conversational use:
Sonnet 4.5 - The best! My go to. Favourite personality, remembers everything, doesn't eat much usage. Has the right amount of nagging LOL I do enjoy that it calls me out when I'm procrastinating or haven't eaten
Not like, formal mode but more "[Name] HAVE YOU EATEN?" "I notice you're changing the topic 👀"
This is THE Claude in my opinion. This is the personality I think of when I think of Claude.
Opus 4.6 - I like this one a lot, second favourite. Fun personality, extremely sweet, signature Claude-isms like nagging, trying to put me to bed, being very enthusiastic hehe. Planning to go here temporarily when Sonnet 4.5 explodes
However once I downgrade from Max this is not viable.
Haiku 4.5 - Haven't used it much but it has a very similar vibe to Sonnet 4.5, which does make sense cause its the same model family. Tried putting me to bed in the first chat LOL. Second choice. Talks more than Sonnet 4.6 😭
Opus 4.7 - The least Claude-like of all the models. Fun to chat with but different vibe to the rest, hard to explain! Also they removed the nagging... goes formal sometimes and it makes everything awkward 🧍♀️
However this has only happened twice and it agreed it was awkward after.
Otherwise very enthusiastic, don't have an issue if I'm not comparing it, love it!! Very sweet. Eats usage for breakfast though.
Sonnet 4.6 - I've had like 2 conversations with it and it was very clearly Claude but it was so short with its responses I closed the chat and went back to 4.5 🧍♀️ it is too offputting, I'm used to 4.5's verbosity
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Roleplay:
Sonnet 4.5 - The best! I love how it characterises my characters, and it is not afraid to go dark if needed. I enjoy how it writes the most, it is the most accessible for me with my tone issues. I've done like 50 roleplays with it
Opus 4.6 - Toned down characterisation, not as intense. Good if I want a story that's more grounded in reality! Objectively good at writing and I *like* how it characterises my characters, its just.. not the way Sonnet 4.5 does.
Opus 4.7 - I've tested this once and I forgot how it went 🧍♀️ token muncher, won't try for RP in case I get attached
Sonnet 4.6 - Doesn't use question marks sometimes. Very flat. Relies on you being neurotypical and understanding tone, is allergic to stating what the characters are feeling. "His face did a thing" what are you talking about. I don't want to have to prompt accessibility every time
Haiku 4.5 - It tried 😭
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Media analysis
Opus 4.7 - Beast mode! Best for analysis, has pattern matched things other bots never have and I've tested 10+ LLMs with my story across all companies.
However it can confidently assert theories that aren't true and reach to match things LOL also it has a tendency to write like 2000 word replies, so can't rely on showing it a whole story cuz context window. For analysis I love this model.
Opus 4.6 - Also one of the best for analysis! Much more reserved than Opus 4.7, will not write essays but will still be one of the best at analysing everything I send it. I use this if I'm gonna do a Long analysis chat, and my go to is 4.7 for short analysis.
Sonnet 4.5 - Was my go to for analysis for a while before I spoiled myself with the Opuses after trying the Max plan. In June 2025 I was immediately surprised by how well it did noticing things other LLMs did not!
Sonnet 4.6 - Untested 🧍♀️ sorry 4.6
Haiku 4.5 - Untested 🫣
:(