Anthropic launches Claude Haiku 4.5: faster, safer, low-cost AI for all users

Anthropic launches Claude Haiku 4.5: faster, safer, low-cost AI for all users

Anthropic has released Claude Haiku 4.5, its fastest, most affordable, and safest model yet, offering access to near-frontier-level intelligence. The new model is now available for free on Claude.ai and also becomes the cheapest option for paid users, priced at $1 per million input tokens and $5 per million output tokens, making it Anthropic’s most cost-efficient model so far.

Haiku 4.5 delivers coding and reasoning performance close to Claude Sonnet 4.5 while running twice as fast and costing one-third as much. It scored 73.3% on SWE-bench Verified, just below Sonnet’s 77.2%. Designed for real-time applications like chat assistants, customer support, and pair programming, it also adds sub-agent orchestration, allowing multiple Haiku agents to manage subtasks while a Sonnet model oversees broader workflows.

The model improves safety with fewer misaligned behaviors and meets the AI Safety Level 2 standard, offering more flexibility than the stricter ASL-3 applied to larger models. Developers can use Haiku 4.5 via the Claude API, Amazon Bedrock, and Google Cloud’s Vertex AI, with backward compatibility for Haiku 3.5 and Sonnet 4 models.

by Mauricio B. Holguin

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MORE ABOUT: #AI Chatbots#Large Language Model (LLM) Tools#AI Writing Tools#Claude
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Claude is a next-gen AI assistant built on Anthropic's research, designed to be helpful, honest, and harmless. It offers a versatile chat interface and API access via the developer console, enabling a wide range of conversational and text processing tasks. Rated 3.5, Claude's key features include AI-powered capabilities and chatbot functionality. Top alternatives include ChatGPT, Jasper, and Bard.

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Comments

superstickynotemealt
1

My first experience with Hiku 4.5: Sonnet 4.5 has failed to fix this 5x... this is getting expensive. May as well switch to Hiku... Hey it fixed it on it's first try! Cool. /usage ... Still seems to have used the same amount of my weekly usage as sonnet 4.5 though...

3 replies
superstickynotemealt

A full day of working with Hiku 4.5 though and it has proven to be quite a bit cheaper to use, and really good... infact it seems to be better than Sonnet 4.5 at quite a few things. Despite having lower benchmarks honestly in a blind side by side there's a good chance I'd pick Hiku 4.5 as being the more advanced LLM of the two.

Mauricio B. Holguin

Good to know! Thanks for sharing. The price was already a solid reason to go for it, but sounds like it can do most of what Sonnet does too, so that’s awesome!

superstickynotemealt

Yeah been using Hiku 4.5 for quite a while now and it's pretty rare I needed to switch back to Sonnet and normally when I do... Sonnet can't fix the issue and I have to get a second opinion from Codex or Minimax M2. Hiku makes it so my $20/sub actually does last an entire week so it's been a pretty nice release.

Gu