Opus 5 appears to be a top performing model... at agentic CAD design! It even outperforms Fable on a number on a number of mechanical design tasksshow more

I had access to Opus 5 before release and... found it to be a good model if a quirky one. On shorter tasks, it could match or beat Fable levels of performance, at longer tasks it seemed less ambitious & would not deliver as complete a set of work. Here is its neo-gothic shader.show more

Both Claude Opus 5 and GPT-5.6 Sol have been... performing exceptionally well on our leaderboards, ranking in the top 3 across almost all of our non-agentic tasks. We put both models through the same 3D design and website challenges to see where each excels the most. Watch the full breakdown on Youtube:show more

Most benchmarks just give you a number on a... chart. We made one where you judge the actual work side-by-side. Here's Fable 5 vs GPT-5.6 Sol on a mix of design, writing, and creative work. Try Hyperbench and choose your winner:show more

Fable 5, first Mythos-class model is live on AI/ML... API! We ran a fun test: Opus 4.8 vs Fable 5 are generating a 3D Pokemon. Verdict? Fable 5 is brilliant, fast, and rare as Mew… but Opus is still that nice little guy who does great stuff. 💛 Fable 5 Important bits: SOTA on nearly every benchmark, and the lead only grows on longer, complex tasks. • 1M Context • $10 / 1M input • $50 / 1M output Built for: long-horizon agentic coding, big migrations, vision-to-code, deep research.show more

Same game. Three models. UX test, not just UI.... DeepSeek: $0.0008. GLM 5.2: $0.048. Fable 5: $0.42. Open source won on both design and price. Fable 5 just lost a UX battle to a model 500x cheaper.show more

Fable 5 designed a completely functional mechanical watch in... CAD Inspired by the Omega Speedmaster Professional, the "Moonwatch" that NASA astronauts wore on the Apollo missions Claude is still the king of CADshow more

asked claude fable 5 to design spacex starship with... mechazilla it modelled the first stage boosters and even animated a chopstick catch at the end absolutely insaneshow more

Claude Fable 5 + Claude Design is f*cking insane... 🤯 Anthropic just dropped its most intelligent model ever, and the first thing I pointed it at was email design. I built a complete email campaign design in Claude Design, and the difference is night and day: tighter layouts, cleaner hierarchy, on-brand from the first generation. All inside Claude Design with Fable 5. Perfect for DTC brands and agencies who are still paying email agencies $3-5K/month for campaign designs that take 2 weeks to ship. If your campaign calendar is packed but every new email means briefing a designer, waiting on mockups, sending notes, and waiting again... This workflow eliminates the entire bottleneck: → Load your brand design system into Claude Design once (colors, fonts, logo, button styling) → Switch the model to Claude Fable 5 — Anthropic's new state-of-the-art model with the best vision of any AI → Prompt the campaign email section by section: header, hero, headline, offer block, CTA → Fable 5 nails layout and brand details that older models fumbled → Iterate inline — swap images, adjust styling, color-pick directly in the canvas → Export the finished email and hand off to your ESP No briefing a designer. No 2-week turnaround on a single campaign. No paying an agency $4K/month for 4 emails. What you get: → Campaign emails designed in minutes, not weeks → A reusable design system every new email pulls from automatically → Noticeably smarter design decisions from Fable 5's upgraded vision → Full inline editing before anything touches your ESP Built 100% with Claude Design + Claude Fable 5. I recorded a full walkthrough showing exactly how this works. Want it for free? > Like this post > Comment "FABLE" And I'll send it over (must be following so I can DM)show more

HERMES AGENT NOW RUNS CLAUDE OPUS 5. NEAR FABLE... 5 INTELLIGENCE. HALF THE PRICE. SELF-VERIFIES ITS OWN WORK. AVAILABLE TODAY VIA NOUS PORTAL (20% OFF ALL MODELS). Anthropic shipped Opus 5 on July 24, 2026. same $5/$25 per million tokens as Opus 4.8. but the benchmarks tell a different story. WHAT CHANGED FROM OPUS 4.8: FrontierBench v0.1: Opus 5: 43.3%. Opus 4.8: 18.7%. 2.3x jump on the same test. ARC-AGI-3: Opus 5: 30.2%. 3x better than the next closest model. beat Fable 5 on 8 out of 13 benchmarks. at half the cost ($5/$25 vs $10/$50). same price as Opus 4.8. twice the intelligence. no reason to stay on 4.8. THE SPECS: model ID: claude-opus-5 context: 1M tokens (default and maximum) max output: 128K tokens thinking: on by default effort toggle: low / medium / high per request fast mode: $10/$50, 2.5x faster knowledge cutoff: May 2026 minimum cacheable prompt: 512 tokens (was 1,024) SELF-VERIFICATION (the biggest change): Opus 5 checks its own work automatically. Anthropic says: delete your verification prompts. "include a final verification step" now causes OVER-verification because the model already does it. for Hermes /goal tasks this is a direct upgrade. the judge checks evidence. the model also checks evidence. double layer of verification without extra tokens. EFFORT TOGGLE: low: fast, cheap, routine work. medium: balanced, daily tasks. high: full reasoning, complex problems. set per request. not a global switch. matches Hermes /reasoning command: /reasoning low (routine) /reasoning high (complex) Opus 5 effort toggle + Hermes reasoning control = precise cost management per turn. WHERE OPUS 5 FITS IN HERMES: DAILY DRIVER (replaces Opus 4.8): same price. 2.3x better benchmarks. set as your main model: Desktop app / Dashboard: Models → claude-opus-5 CHIEF OF STAFF: synthesis across multiple agents. reads Kanban, prioritizes, routes tasks. self-verification catches routing errors before they cascade. COMPLEX CODING: SOTA on agentic coding benchmarks. FrontierBench 43.3% = best public model for coding. set as coder profile model. /GOAL TASKS: self-verification + completion contracts = the model proves its work AND double-checks the proof. long-horizon goals finish correctly more often. MoA AGGREGATOR: strongest synthesis model at $5/$25. pair with GPT-5.6 and Grok 4.5 as references. Opus 5 aggregates. best quality at mid-range price. presets: max-quality: reference_models: - provider: openai-codex model: gpt-5.6-sol - provider: xai model: grok-4.5 aggregator: provider: anthropic model: claude-opus-5 COMPUTER USE: near-Fable 5 quality for browser automation. at half the token cost per session. computer_use tasks burn lots of vision tokens. Opus 5 halves that bill vs Fable 5. WHAT TO KEEP OPUS 5 AWAY FROM: cron monitoring: too expensive. use DeepSeek or no_agent mode. sub-agent grunt work: use GPT-5.6 Luna ($1/$6) or DeepSeek. auxiliary tasks: use Gemini Flash. routine web extraction: use a cheap model. Opus 5 is for the turns where quality compounds. planning, synthesis, verification, complex reasoning. budget models handle everything else. NOUS PORTAL: 20% OFF ALL MODELS Nous Portal currently runs a 20% discount on all models including Opus 5. $5/$25 official → $4/$20 through Nous Portal. the cheapest way to run Opus 5 right now. hermes setup --portal select claude-opus-5 as your model. discount applies automatically. Opus 5 replaces Opus 4.8 everywhere. same price. better at everything. no tradeoff. straight upgrade. hermes update /model claude-opus-5show more

A quick cost per task comparison of Kimi K3... Kimi.ai and GPT-5.6 Sol by OpenAI. At 3.2x cheaper, Kimi K3's model outputs web apps not just on par for design quality, but better across certain domains. Kimi K3 establishes a new design SOTA and Pareto frontier for cost for design tasks.show more

Noyron allows us to design complex machinery and iterate... at unprecedented speeds. Experimentation is the mother of innovation. CAD-based workflows penalize iteration, whereas computational models allow us to be even playful with the design of complex objects.show more

Claude Fable 5 on left vs GPT 5.5 on... right. Both one shot. Fable 5 is truly a big jump in CAD capabilities as seen in ForgeCAD.show more

MiniMax M3: Opus-level coding at DeepSeek pricing. On Terminal-Bench... 2.1, it scores 66.0, only 0.1 behind Opus 4.7. I gave it a quick try on a few frontend tasks, and the output quality genuinely feels close to Opus 4.7.show more

asked claude fable 5 to design a 16dof articulated... robot hand it also wrote a robot description file (urdf) for the hand ~ 1 hour / 300k tokensshow more

asked claude fable 5 to design a qdd actuator... it also animated the gearbox and inspected collisions as part of the validation loop ~ 30 minutes / 400k tokensshow more

Design Engineering 101: Make your number steppers feel awesome.... A number stepper that only bumps once per click makes you click twenty times. Reward the hold. Animate it nicely with rolling digits, blur on transitions and gradient masks to avoid abrupt cuts.show more

MiniMax-M2.1 vs Opus 4.5 Really wanted to test out... this prompt: 3D sim of an F1 car performing a continuous drifting donut on a city street. Outcome: • Opus 4.5 fails to generate... • MiniMax-M2.1 fixes orientation, lighting, and scale within 5 turns Winner: M2.1 - Fast agentic iteration wins here.show more

Franz in new Jay Leno's Garage interview on the... future vehicle design language at Tesla: "We've ben working on a lot of future design language in the studio and it will be emerging soon. I'm super excited about it."show more

Sonnet-3.7 is available in Cursor! We've been very impressed... by its coding ability, especially on real-world agentic tasks. It appears to be the new state of the art.show more