Categories AI

Opus 5 to Fable 5: A Quick Guide

Hello everyone,

I’m back from vacation and diving straight into my creative projects. Recently, I’ve become quite fascinated by the capabilities of tldraw, a free canvas and whiteboard application. The recently updated offline version is especially impressive, allowing users like us to create engaging visualizations, develop games, and even interactive blog posts among many other uses.

For instance, I’ve transformed our logo into a lively animated mascot known as ‘Bites.’

Additionally, I’ve crafted nifty widgets, such as a timezone checker, which you can see below.

@tldraw“,”username”:”bentossell”,”name”:”Ben Tossell”,”profile_image_url”:”https://pbs.substack.com/profile_images/1878086921726943233/vOx1kjeP_normal.jpg”,”date”:”2026-07-27T12:09:52.000Z”,”photos”:[{“img_url”:”https://substackcdn.com/image/fetch/$s_!A46f!,w_1028,c_limit,f_auto,q_auto:best,fl_progressive:steep/l_play_button_usfui2,w_88,e_colorize:0/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F__ss-rehost__tw-video-preview-13_2081713656362876928.jpg”,”link_url”:”https://t.co/Wi3w9F5mBp”}],”quoted_tweet”:{“full_text”:”timezone checker in @tldraw offline”,”username”:”bentossell”,”name”:”Ben Tossell”,”profile_image_url”:”https://pbs.substack.com/profile_images/1878086921726943233/vOx1kjeP_normal.jpg”},”reply_count”:1,”retweet_count”:2,”like_count”:37,”impression_count”:7078,”expanded_url”:null,”video_url”:”https://video.twimg.com/amplify_video/2081713656362876928/vid/avc1/712×480/rM3MO8lKfitLiFPy.mp4″,”video_preview_media_key”:”13_2081713656362876928″,”belowTheFold”:false}’ class=”pencraft pc-display-flex pc-flexDirection-column pc-gap-12 pc-padding-16 pc-reset bg-primary-zk6FDl outline-detail-vcQLyr pc-borderRadius-md sizing-border-box-DggLA4 pressable-lg-kV7yq8 font-text-qe4AeH tweet-fWkQfo twitter-embed”>

X avatar for @bentossell

Ben Tossell@bentossell

Ok, I’m obsessed with creating small widgets in @tldraw.

X avatar for @bentossell

Ben Tossell @bentossell

Timezone checker in @tldraw offline

12:09 PM · Jul 27, 2026 · 7.08K Views

1 Reply · 2 Reposts · 37 Likes

Visuals indeed capture my interest far more than plain text, which often goes unnoticed. If everything is presented visually on a single canvas, I’m more likely to engage with it.

My plan is to create a comprehensive canvas displaying various widgets I commonly use, along with my to-do lists and emails. Eventually, I want to transform my personal website into an interactive canvas as well, along with additional explanatory materials.

And who knows, I might even connect our mascot to an agent where I can drag him to my to-dos and ask him to perform tasks for me!

Stay tuned for more updates soon 😊

Ben’s Bites is sponsored by Ability AI

This startup operates with 17 AI agents and open-sourced the platform. They handle everything from marketing and client relations to competitive intelligence and finance, ensuring all actions are tracked and approved by humans. These agents are yours to own, not rent, under Apache 2.0: github.com/Abilityai/trinity

Claude Opus 5 has been released – Anthropic claims it rivals Fable 5 at half the cost. Claire had a rocky experience using Opus 5, but in blind tests, she rated it as the best performer.

Every’s review highlights behaviors that might shed light on this, including its tendency to argue, stop early, and challenge previously established skills.

This might suggest we are overpushing it.

Anthropic has reported that they removed over 80% of Claude Code’s system prompt for Opus 5 and Fable 5 without any measurable loss in coding evaluation.

ChatGPT Voice is now compatible with the ChatGPT desktop app. Users can utilize it within both ChatGPT Work and Codex environments; just initiate a “Voice” session and speak to it. It creates new sessions for specific tasks and reports the findings back to the main thread, resembling OpenClaw’s functionality.

My experience using ChatGPT Voice for serious projects wasn’t very positive. Delegating tasks to new sessions using ChatGPT Voice felt less intuitive compared to managing them directly in a chat with 5.6 Sol in Codex. Perhaps this is due to the limited control over which models or thinking levels are applied in each session.

I anticipate Voice to excel in productivity tasks, such as sorting emails, drafting responses, and retrieving data from a dashboard to generate charts.

For more critical assignments, I still prefer employing a speech-to-text application (the one I developed is called — optionafk.com) and forwarding that input to the agent of my preference, so I maintain full control over the operational model and cognitive effort.

— Keshav

Moreover, you may have overlooked it, but Claude now features a voice mode. Previously restricted to Haiku, it can now utilize Sonnet and Opus, allowing it to interact with various tools like Gmail, Calendar, and Slack in real-time conversations. It’s been a while since I’ve used Claude’s chat option, as it has focused heavily on Claude Code lately.

Kimi K3’s weights and technical report have just been released. It’s currently available on Droid for 50% off until August 10.

In light of rumors regarding a potential U.S. ban on using Chinese open-weight models, NVIDIA’s CEO, Jensen Huang, has made his inaugural post on X. In it, he expressed support for open-source AI. Following this announcement, over the weekend, numerous companies signed this statement — including OpenAI, Google, Microsoft, and more than 150 others — all except Anthropic.

This spurred backlash, which prompted Anthropic to publish a response, attempting to clarify that they never advocated for a ban on open weights. This has led to criticisms accusing Anthropic of hypocrisy, as they seem open to smaller models but resistant to larger, more powerful models that could threaten their market position.

@PjoyAI @lakshyaag I thought the way to announce such a thing was not to change your bio but to post the 10 paragraph essay that i just shared with the team?”,”username”:”karpathy”,”name”:”Andrej Karpathy”,”profile_image_url”:”https://pbs.substack.com/profile_images/1296667294148382721/9Pr6XrPB_normal.jpg”,”date”:”2026-07-26T01:51:27.000Z”,”photos”:[],”quoted_tweet”:{},”reply_count”:119,”retweet_count”:82,”like_count”:3007,”impression_count”:263923,”expanded_url”:null,”video_url”:null,”video_preview_media_key”:null,”belowTheFold”:true}’ class=”pencraft pc-display-flex pc-flexDirection-column pc-gap-12 pc-padding-16 pc-reset bg-primary-zk6FDl outline-detail-vcQLyr pc-borderRadius-md sizing-border-box-DggLA4 pressable-lg-kV7yq8 font-text-qe4AeH tweet-fWkQfo twitter-embed”>

X avatar for @karpathy

Andrej Karpathy@karpathy

@PjoyAI @lakshyaag I thought the way to announce such a thing was not to change your bio but to post the 10-paragraph essay that I just shared with the team?

1:51 AM · Jul 26, 2026 · 264K Views

119 Replies · 82 Reposts · 3.01K Likes


Leave a Reply

您的邮箱地址不会被公开。 必填项已用 * 标注

You May Also Like