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- Anthropic launches Fable 5 and Mythos 5 on the same day
Anthropic launches Fable 5 and Mythos 5 on the same day
Is this Anthropic's strongest release ever?

Anthropic just launched Claude Fable 5.
Their most capable model ever made generally available. State-of-the-art on nearly all benchmarks. Exceptional performance in software engineering, knowledge work, vision, and scientific research.
Also launching Claude Mythos 5 the same underlying model with cyber safeguards lifted for Project Glasswing partners only.
Price at $10 per million input tokens and $50 per million output tokens. Less than half the price of Mythos Preview.
Available on all plans through June 22 at no extra cost. After that, usage credits required until capacity scales.
Today's prompt builds portfolio website copy that turns visitors into enquiries. Win Wednesday is double news this week β Anthropic's biggest launch ever and OpenAI's vision for what comes next.
π₯ Prompt of the Day π₯
Portfolio Website Copy: Use ChatGPT or Claude
Create one client-attracting About and Services page.
"Act as a personal brand copywriter. Create one portfolio website copy set for [FREELANCER/AGENCY] that turns visitors into enquiries.
Essential Details:
Your Role: [WHAT YOU DO]
Ideal Client: [WHO HIRES YOU]
Key Differentiator: [WHY YOU, NOT THEM]
Results Proof: [BEST OUTCOME]
Services Offered: [WHAT TO LIST]
CTA Goal: [BOOK CALL/SEND BRIEF]
Create one website copy set including:
Homepage headline and subheadline
About section (story, not resume)
Services overview with outcomes
Social proof placement
FAQ addressing common hesitations
Contact page with friction-free CTA
Your website should sell while you sleep."
Variables:
FREELANCER/AGENCY: Who the copy is for
WHAT YOU DO: Your specific role or service
WHO HIRES YOU: Your ideal client description
WHY YOU, NOT THEM: Your key differentiator
BEST OUTCOME: Your strongest result or case study
CTA GOAL: What you want visitors to do
Why This Works:
Most portfolio websites describe what you do. The best ones make visitors feel understood and ready to hire. AI builds the copy that leads with outcomes not credentials, tells a story instead of listing a resume, and makes the next step frictionless. A website that converts turns every visitor into a potential enquiry around the clock.
π€OpenAI Lays Out Its Plan for the Next Era of AI π€
OpenAI just published its most ambitious public statement yet.
A joint post from Sam Altman and chief scientist Jakub Pachocki laying out where they think AI is going and what OpenAI's role in it should be.
Three goals. One vision. A timeline that should make everyone pay attention.
The Electricity Analogy
The post opens with electricity reaching rural America in the 1920s.
Before power lines β hauling water, washing by hand, days ending at sunset. After β light at night, electric appliances, radios connecting communities to the world. By the end of the 20th century, average lifespan up over 20 years and median income roughly tripled.
Their argument: AI is doing the same thing again. The technology is not the point. What people do with it is.
The Three Goals
Build an automated AI researcher β an AI system that accelerates and increasingly automates the research process itself while remaining steerable and accountable. Internal belief: by March 2028 a significant fraction of OpenAI's own research will be done by AI systems working alongside human researchers.
Accelerate the economy β scientific progress, productivity, and economic growth, with gains widely shared. Everyone should have a meaningful share in the prosperity AI creates.
Give everyone on Earth a personal AGI β empowering every person to benefit from one of humanity's most transformative technologies in whatever way they choose.
The Phase They're Entering
Phase one was AI research. Phase two was becoming a product company. Phase three is the question of how to make advanced AI abundant, affordable, safe, and easy enough for every person and organization to benefit from it.
"Frontier capability is only part of the job. The bigger task is turning that capability into tools people can actually use to thrive."
What They Said About Power
The most striking line in the post was about power concentration.
"A good AI future cannot be one where a small number of institutions control most of the capability and most of the upside."
OpenAI β one of those institutions β saying that out loud is notable. Whether the actions match the words is a different question. But the framing matters.
They also called for an international organization to coordinate leading AI efforts and reduce catastrophic risk. Including the ability to slow frontier development when needed.
Why This Matters
This is not a product announcement. It is a positioning document for the post-AGI world.
OpenAI is telling governments, regulators, partners, and the public what it believes and what it is building toward. The March 2028 timeline for AI doing significant AI research is the most concrete forward-looking claim in the piece.
For businesses: The third phase of OpenAI is about making AI abundant and affordable at scale. That affects every enterprise AI strategy being built right now.
For the market: The explicit call for international coordination and power distribution signals that OpenAI is preparing for a world where its technology is genuinely transformative β and wants to be seen as responsible steward rather than reckless accelerationist.
Did You Know?
When AI was tasked with designing the most energy-efficient building possible with no aesthetic constraints, it produced structures that looked almost identical to termite mounds β the same ventilation shafts, the same thermal mass distribution, the same orientation to prevailing winds β independently converging on solutions that insects perfected millions of years ago.
ποΈ Breaking News ποΈ
Anthropic Launches Claude Fable 5 β Most Powerful Model Ever Made Generally Available
Anthropic just launched their biggest model yet.
Claude Fable 5. Available everywhere today. State-of-the-art on nearly all tested benchmarks of AI capability.
Also launching Claude Mythos 5 β same underlying model with cyber safeguards lifted β exclusively for Project Glasswing partners.
Both priced at $10 per million input tokens and $50 per million output tokens. Less than half the price of Mythos Preview.
What Makes It Different
The longer and more complex the task, the larger Fable 5's lead over previous Claude models.
Software engineering β Stripe reported Fable 5 compressed months of engineering into days. In a 50-million-line Ruby codebase, it completed a migration in one day that would have taken a whole team over two months by hand.
Knowledge work β highest score of any model on Hebbia's Finance Benchmark for senior-level reasoning. IMC reported it aced their trading-analysis evaluations nearly across the board.
Vision β new state of the art. Can extract precise numbers from detailed scientific figures. Rebuilt a web app's source code from screenshots alone. Beat PokΓ©mon FireRed using only raw game screenshots with no helper tools.
Memory and long-context β stays focused across millions of tokens. File-based memory improved performance three times more than for Opus 4.8 in long-running tasks.
Drug design β using Mythos 5, internal protein design experts accelerated aspects of drug design by around ten times. The model executed all tasks normally completed by a scientist with no human assistance.
Novel scientific hypotheses β first model to consistently produce novel, compelling scientific hypotheses. Scientists preferred Mythos's molecular biology hypotheses around 80% of the time in blinded comparisons.
The Safeguards
Fable 5 launches with new safety classifiers for three areas.
Cybersecurity β when flagged, responses fall back to Claude Opus 4.8 instead. Users are informed when this happens. More than 95% of Fable sessions involve no fallback at all.
Biology and chemistry β same fallback approach for dual-use biology and chemistry queries until the trusted access program for researchers launches.
Distillation β requests flagged as attempts to extract Claude's capabilities to train competing models fall back to Opus 4.8.
External red-teaming organizations failed to find universal jailbreaks. One partner found Fable 5's cyber safeguards were the most robust of any model tested β zero harmful requests complied with across 30 different public jailbreak techniques.
Availability and Pricing
Available on all Claude plans through June 22 at no extra cost.
June 23 onward β usage credits required until capacity scales enough to restore it as a standard subscription feature.
Anthropic will communicate changes ahead of time so users know where things stand.
Why This Matters
Fable 5 is not just a capability upgrade. It is Anthropic's proof that a Mythos-class model can be made safe for general use.
The entire release β the safeguards, the fallback system, the trusted access programs, the data retention policy β is a demonstration of what responsible deployment of extremely capable AI looks like in practice.
For developers: The most capable Claude model ever available via API starting today.
For enterprise teams: Fable 5 handling months-long coding tasks in days changes the economics of software projects fundamentally.
For the AI market: Anthropic just released a model that beats competitors on nearly every benchmark while shipping it with the most robust safety architecture of any generally available model.
What This Means
If you're on a Claude subscription plan, Fable 5 is available now through June 22. Use it while it's included.
If you build on the Claude API, claude-fable-5 is available today. The capability jump from Opus is significant enough to revisit what you're building.
If you watch AI safety and capabilities together, Fable 5's launch is the clearest demonstration yet that they can advance simultaneously rather than trade off against each other.
The most powerful generally available AI model in the world just launched. And it came with a safety architecture to match.
Over to You...
Anthropic just launched their most powerful model and their most robust safety system simultaneously.
Does that change how you think about building on Claude?
Tell me what you think.
To capability and safety moving together,
Jeff J. Hunter
Founder, AI Persona Method | TheTip.ai
P.S. Want to turn AI Agents into a consulting offer? Book your AI Certified Consultant strategy π here.
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