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Claude Haiku 4.5

anthropic.com

151–160 of 292 posts

Re: Claude Haiku 4.5

#151

Ain't nobody got time to pick models and compare features. It's annoying enough having to switch from one LLM ecosystem to another all the time due to vague usage restrictions. I'm paying $20/mo to Anthropic for Claude Code, to OpenAI for Codex, and previously to Cursor for...I don't even know what. I know Cursor lets you select a few different models under the covers, but I have no idea how they differ, nor do I car…

VSCode + the new "Auto" model probably worth a shot for this

Re: Claude Haiku 4.5

#152

Earlier quoted context omitted.

My impression is that Sonnet and Haiku 4.5 are the same "base models" as Sonnet and Haiku 4, the improvements are from fine tuning on data generated by Opus. I'm a user who follows the space but doesn't actually develop or work on these models, so I don't actually know anything, but this seems like standard practice (using the biggest model to finetune smaller models) Certainly, GPT-4 Turbo was a smaller model than G…

Which is all to say that I think the reason they went from Opus 3 to Opus 4 is because there was no bigger model to fine tune Opus 3.5 with. And I would expect Opus 4 to be much the same.

But sonnet 4.5 outperforms opus 4 on most benchmarks and tasks that can't be all that's to it

Re: Claude Haiku 4.5

#153

Sonnet 4.5 is an excellent model for my startup's use case. Chatting to Haiku it looks promising too, and it may be great drop in replacement for some of inference tasks that have a lot of input tokens but don't require 4.5-level intelligence.

I think a lot of people judge these models purely off of what they want to personally use for coding and forget about enterprise use. For white-label chatbots that use completely custom harnesses + tools, Sonnet 4.5 is much easier to work with than GPT-5. And like you, I was really pleased to see this release today. For our usage speed/cost are more important than pure model IQ above some certain threshold. We'll likely switch over to Haiku 4.5 after some testing to confirm it is what it says on the tin.

Re: Claude Haiku 4.5

#154

Ain't nobody got time to pick models and compare features. It's annoying enough having to switch from one LLM ecosystem to another all the time due to vague usage restrictions. I'm paying $20/mo to Anthropic for Claude Code, to OpenAI for Codex, and previously to Cursor for...I don't even know what. I know Cursor lets you select a few different models under the covers, but I have no idea how they differ, nor do I car…

> Ain't nobody got time to pick models and compare features. ... Make it integrate in a generic way, ... , so that it doesn't matter whether I'm using a CLI or neovim or an IDE, and so that I don't have to constantly switch tooling.

I use GitHub Copilot Pro+ because this was my main requirement as well.

Pro+ has the new models as they come out -- actually just enabled Claude Haiku 4.5 for selection availability. I have not yet had a problem with running out of the premium allowance, but from reading how others use these, I am also not a power user type.

I have not yet the CLI version, but it looks interesting. Before the Intellij plugin improved, I would switch to VS Code to run a certain types of prompt then switch back after without issues. The web version has the `Spaces` thing that I find useful for niche things.

I have no idea how it compares to the individual offerings, and based on previous hn threads here, there was a lot of hate for gh copilot. So maybe it's actually terrible and the individual version are lightyears ahead -- but it stays out of my way until I want it and it does its job well enough for my use.

Re: Claude Haiku 4.5

#155

If I'm close to weekly limits on Claude Code with Anthropic Pro, does that go away or stretch out if I switch to Haiku?

How close are you? Oh right, Anthropic doesn't tell you. I got that 'close to weekly limits' message for an entire week without ever reaching it, came to the conclusion that it is just a printer industry 'low ink!' tactic, and cancelled my subscription. You don't take money from a customer for a service, and then bar the customer form using that service for multiple days. Either charge more, stop subsidizing free acc…

They have pretty nice bar charts nowadays.

Re: Claude Haiku 4.5

#156

> In the system card, we focus on safety evaluations, including assessments of: ... the model’s own potential welfare ... In what way does a language model need to have its own welfare protected? Does this generation of models have persistent "feelings"?

They previously discussed this some in the context of Opus 4: https://www.anthropic.com/research/end-subset-conversations > We remain highly uncertain about the potential moral status of Claude and other LLMs, now or in the future. However, we take the issue seriously, and alongside our research program we’re working to identify and implement low-cost interventions to mitigate risks to model welfare, in case such wel…

I can't tell if anthropic is serious about "model welfare" or if it's just a marketing ploy. I mean isn't it responding negatively because it has been trained that way? If they were serious, wouldn't the ethical thing be to train the model to respond neutrally to "harmful" queries?

Re: Claude Haiku 4.5

#157

Earlier quoted context omitted.

simonw has other prompts, that are undisclosed. So cheating on this prompt will be catched.

What? you and I cant see his "undisclosed" tests... but you better be sure that whatever model he is testing is specifically looking for these tests coming in over the api, or you know, absolutely everything for the cops

You are welcome to test it yourself with whatever svg you want.

I am quite confident that they are not cheating for his benchmark, it produces about the same quality for other objects. Your cynicism is unwarranted.

Re: Claude Haiku 4.5

#158
post #52

I am really interested in the future of Opus; is it going to be an absolute monster, and continue to be wildly expensive? Or is the leap from 4 -> 4.5 for it going to be more modest.

I wonder what the next smaller model after Haiku will be called. "Claude Phrase"?

Claude Groan.

Re: Claude Haiku 4.5

#159

Ain't nobody got time to pick models and compare features. It's annoying enough having to switch from one LLM ecosystem to another all the time due to vague usage restrictions. I'm paying $20/mo to Anthropic for Claude Code, to OpenAI for Codex, and previously to Cursor for...I don't even know what. I know Cursor lets you select a few different models under the covers, but I have no idea how they differ, nor do I car…

Even if you pick one. First it's prompt driven development, then context driven. Then you should use a detailed spec. But no, now it's better to talk to it like a person/have a conversation. Hold up why are you doing that you should be doing example driven. Look, I get that they probably all have their place, but since there isn't consensus on any of this, it's next to impossible to find good examples. Some one posted a reply to me on a old post and called it bug-driven development and that stuck with me. You get it to do something (any way) and then you have to fix all the bugs and errors.

Re: Claude Haiku 4.5

#160
post #27

Earlier quoted context omitted.

I vastly prefer the manual caching. There are several aspects of automatic caching that are suboptimal, with only moderately less developer burden. I don’t use Anthropic much but I wish the others had manual cache options

What's sub-optimal about the OpenAI approach, where you get 90% discount on tokens that you've previously sent within X minutes?

Is it wherever the tokens are, or is it the N first tokens they've seen before? Ie if my prompt is 99% the same, except for the first token, will it be cached?
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