Mythos, Fable 5, Opus, Sonnet, Haiku. If you follow artificial intelligence news, you come across a multitude of names without always knowing which is which. Yet, understanding this hierarchy helps to see where the technology is headed, and how it changes things for you.
We unravel all of this simply, without jargon, with a common thread: the new class of models called Mythos level, and what it means.
Quick answer: Anthropic offers several AI models ranked by power. Mythos is the newest and most advanced class, specializing in security and reserved for partners. Fable 5 is the public version of this class, with safeguards. Below that, Opus is the most capable model for the general public, Sonnet is the balanced one, and Haiku is the fastest. The higher the tier, the more intelligent the AI, but also the more expensive and regulated it becomes.
1. Why are there multiple models?
Not all needs are created equal. Replying to an email is not the same as analyzing a hundred-page contract or securing a critical system. Anthropic therefore offers a range of solutions, from the fastest and most economical to the most intelligent and demanding. It's up to you to choose the tool that best suits your task.
2. The new Mythos class
Mythos represents a leap forward. It's a significantly more powerful model class, state-of-the-art for expert tasks like cybersecurity. Its most advanced version is not publicly available, as a precaution. Its public and secure version is called Fable 5: it retains the necessary power while blocking risky use cases.
3. The consumer range
Below this elite class, we find the models that most people and businesses use on a daily basis.
- Opus: the most capable for the general public, ideal for difficult and lengthy tasks.
- Sonnet: the best balance between speed and intelligence, perfect for production.
- Haiku: the fastest and most economical, tailored for simple tasks.
4. How to choose for your business
Good news: you don't need the most powerful model to benefit. For most SMEs, a well-balanced assistant integrated into your existing tools is more than sufficient. The key is to start with the task, not the model name.
If you are hesitating between assistants, our comparison of Copilot or ChatGPT for your SME provides a good starting point.
5. What hierarchy teaches us
Increasing power is pointless if it's not managed properly. This is the whole point of the separation between Mythos, reserved and cautious, and Fable 5, public and secure. The future of AI isn't just about more power, it's about more power managed well.
Frequently Asked Questions
What is the difference between Mythos and Fable 5?
Mythos is the most advanced, non-public version, reserved for partners. Fable 5 is the public version of the same class, with safeguards that block dangerous uses.
Which AI model is the most powerful?
The Mythos class is the most advanced. For the general public, Fable 5 and then Opus are the most capable, followed by Sonnet and Haiku.
Which model should a small or medium-sized enterprise (SME) choose?
Most of the time, a well-balanced model is sufficient. Choose based on the task and the tools you already use, not on the most impressive name.
Choosing the right AI for your SME, without making a mistake
Too many choices, not enough time? We'll help you make the right decision. Explore our IT services or contact OKTO Solutions in Trois-Rivières.
Sources: Anthropic · Claude Model Documentation · Fortune · OKTO Solutions