
Meta Muse Spark Contributor is now on OpenCode Go
See title

See title
𝚌𝚞𝚛𝚕 -𝚏𝚜𝚂𝙻 𝚏𝚡.𝚜𝚑/𝚜𝚎𝚝𝚞𝚙.𝚜𝚑 | 𝚋𝚊𝚜𝚑 (source: https://x.com/vercel\_dev/status/2089828083415355806)
Currently showing as the cheapest option right now across providers on OpenCode.
​
Hi everyone, I noticed that about a day ago we got a free glm endpoint hosted by Decart, at the start it seemed to have some reliability issues but now it looks good at a consistent near 100%.
Just insane levels of value. No weekly limits and I barely reach my 5h limits.
I have been enjoying the model quite a lot. Here's the stuff it's created lately so you have an idea of its level of fidelity: https://glm-5-3.demos.sulat.com/
One-shot demos here (updated regularly): glm-5-3.demos.sulat.com
Extra 10% off their discounted plans: https://z.ai/subscribe?ic=IIJ5RBCVWO
That "soon" tweet was sooner than we thought
There's a reason why it's #1 on Design Arena
Landing page redesigns: https://k3.demos.sulat.com/?q=landing+page
Luxury landing pages: https://k3.demos.sulat.com/?q=luxury
No additional steering done.
Prompts are included on each experiment.
Might be able to see it served by OpenCode Go or other providers at some point.
Interestingly, not even featured on their official website at: https://www.upstage.ai/
Consolidated info: https://models.sulat.com/models/upstage-solar-pro4-a4c5e89c
Easily one of the best subscription providers with decent TPS and is a default provider for OpenCode
https://k3.demos.sulat.com/ (one-shots done on Synthetic/hosted Synthetic)
You can register one of two ways:
It's a great, low-risk deal to get you started on K3 without breaking your wallet. As I've mentioned on previous posts, Synthetic is on the VERY FEW providers that offer subscription-based pricing.

Edit: It's Muse Spark 1.2
You should now be able to generate an API key at http://dev.meta.ai/ and use it on a variety of harnesses including OpenCode and Muse Code.
Previously, Muse Spark 1.1 was only available to US-based users. Muse Spark 1.2 is available globally.
Useful resources and news coverage: https://models.sulat.com/models/openrouter-metamuse-spark-12-99ec6e4d
Absolutely phenomenal. It's available on a couple of providers/gateways as well.
Details and news: https://models.sulat.com/models/opencode-go-deepseek-v4-flash-3c5f5e84
If you want 5 off OpenCode Go, use my ref link: https://opencode.ai/go?ref=J7GTAKMP51
Practically unlimited usage with 31k reqs.
Expect competitive pricing shortly.
Edit: It's now on Synthetic.new under their subscription plans under a beta flag
(10 off your first month here). I'd recommend signing up now before the waitlist comes again.
Context: Started from Lite, then Plus, then Pro (all in the same week).
Usage was exclusively on Qwen3.8 Max Preview
https://reddit.com/link/1v6mh0h/video/dswcncagggfh1/player
Some one-shots I've done with it (check out the comments section):
https://www.reddit.com/r/Qwen_AI/comments/1v29t00/qwen38_max_emulating_a_makeshift_linux_mint_on/
Took about 2h30m to finish
Skill used: https://www.skills.sh/jpcaparas/skills/oneshot-websites
Harness used: Devin CLI
For comparison, this is what K3 produced with a near-identical prompt: https://ubuntu.k3.demos.sulat.com/
Prompt:
Create a fully interactive web-based emulation of the Ubuntu desktop that feels like a living operating system rather than a static mockup. Recreate the modern Ubuntu experience — the GNOME-based desktop with Ubuntu's Yaru design language: the top bar with its clock, calendar popover, and system status menu; the left-hand Ubuntu Dock with pinned and running applications; the Activities overview with window spread, search, and workspace switching; the app grid of installed applications; and draggable, resizable, minimizable, maximizable windows with believable focus, layering, and edge-snapping behavior.
Let visitors actually use the machine. They should be able to launch apps from the dock and the app grid, search for apps and files in the Activities overview, move and resize windows, tile them to screen halves, maximize and restore them, minimize to the dock, switch between workspaces, and quit applications. Include a working Files app with a navigable folder hierarchy, breadcrumbs, list/grid views, and file open/preview behavior; a Text Editor that can open, edit, and save documents; a Terminal with a believable shell session that responds to common commands (ls, cd, pwd, cat, echo, uname, neofetch-style system info, apt simulations, and graceful "command not found" handling); a Settings app with real panels — appearance/accent color, wallpaper, displays, Wi-Fi/network, sound, notifications, users, and About — whose changes visibly take effect on the desktop; a Calculator; a web browser shell with start page and tabs; and a Software store front, plus whatever smaller utilities (clock, image viewer, system monitor) make the system feel inhabited.
Changing the wallpaper or accent color in Settings should restyle the desktop and windows; the top-bar clock should tick and its calendar should highlight today; notifications should arrive, stack in the notification list, and dismiss; the system status menu should offer volume, network, battery, settings, lock, suspend, restart, and power-off flows — with confirmation dialogs, a lock screen showing the time and wallpaper, and a believable shutdown/boot sequence that returns to the session.
Recreate the whole look and feel with close fidelity: the Yaru palette with its aubergine and warm orange accents, Ubuntu typography and icon styling, window chrome with the circular close/minimize/maximize buttons, rounded corners and layered shadows, the dock's running-dot indicators, urgency and hover behavior, app grid folders and pagination, context menus, tooltips, modal dialogs, toast notifications, focus and selection states, loading and error states, and the characteristic motion of the desktop — window open/close animations, overview and workspace transitions, dock reveal, and snapping previews.
Preserve the interface's visual proportions, interaction texture, feedback, personality, and tiny behaviors while making the recreation responsive and enjoyable in a browser, and include the secondary and edge states — empty folders, missing files, unsaved-changes prompts, disconnected Wi-Fi, low battery — that make an operating system feel inhabited, not just the most recognizable screen.
Do not take shortcuts, substitute a cookie-cutter desktop template, or stop at a superficial approximation. This skill imposes no token budget limit, so pursue the recreation down to the smallest meaningful interactions, states, transitions, and edge cases, and keep refining the look, feel, behavior, and atmosphere until the system feels complete, cohesive, and convincingly Ubuntu.
Doing some byte sized benchmarks. Sharing them soon.
Prompt @ https://mint.qwen.demos.sulat.com/PROMPT.md
Skill used @ https://www.skills.sh/jpcaparas/skills/oneshot-websites
Took about 2 hours to finish and put me at the very tip of my Lite Token Plan's 5H limit but it finished.
---
Their PR says:
Alibaba launches Qwen3.8-Max-Preview, says it trails only Anthropic's Fable 5
This is what Fable produced (for comparison):
https://mint.fable.demos.sulat.com/ (PROMPT) (Used the Devin CLI harness)
... and this is what Kimi K3 produced (but for Ubuntu):
Skill used:
https://github.com/jpcaparas/skills#oneshot-websites
One-shot prompt:
Create a fully interactive web-based emulation of the Ubuntu desktop that feels like a living operating system rather than a static mockup. Recreate the modern Ubuntu experience — the GNOME-based desktop with Ubuntu's Yaru design language: the top bar with its clock, calendar popover, and system status menu; the left-hand Ubuntu Dock with pinned and running applications; the Activities overview with window spread, search, and workspace switching; the app grid of installed applications; and draggable, resizable, minimizable, maximizable windows with believable focus, layering, and edge-snapping behavior.
Let visitors actually use the machine. They should be able to launch apps from the dock and the app grid, search for apps and files in the Activities overview, move and resize windows, tile them to screen halves, maximize and restore them, minimize to the dock, switch between workspaces, and quit applications. Include a working Files app with a navigable folder hierarchy, breadcrumbs, list/grid views, and file open/preview behavior; a Text Editor that can open, edit, and save documents; a Terminal with a believable shell session that responds to common commands (ls, cd, pwd, cat, echo, uname, neofetch-style system info, apt simulations, and graceful "command not found" handling); a Settings app with real panels — appearance/accent color, wallpaper, displays, Wi-Fi/network, sound, notifications, users, and About — whose changes visibly take effect on the desktop; a Calculator; a web browser shell with start page and tabs; and a Software store front, plus whatever smaller utilities (clock, image viewer, system monitor) make the system feel inhabited. Changing the wallpaper or accent color in Settings should restyle the desktop and windows; the top-bar clock should tick and its calendar should highlight today; notifications should arrive, stack in the notification list, and dismiss; the system status menu should offer volume, network, battery, settings, lock, suspend, restart, and power-off flows — with confirmation dialogs, a lock screen showing the time and wallpaper, and a believable shutdown/boot sequence that returns to the session.
Recreate the whole look and feel with close fidelity: the Yaru palette with its aubergine and warm orange accents, Ubuntu typography and icon styling, window chrome with the circular close/minimize/maximize buttons, rounded corners and layered shadows, the dock's running-dot indicators, urgency and hover behavior, app grid folders and pagination, context menus, tooltips, modal dialogs, toast notifications, focus and selection states, loading and error states, and the characteristic motion of the desktop — window open/close animations, overview and workspace transitions, dock reveal, and snapping previews. Preserve the interface's visual proportions, interaction texture, feedback, personality, and tiny behaviors while making the recreation responsive and enjoyable in a browser, and include the secondary and edge states — empty folders, missing files, unsaved-changes prompts, disconnected Wi-Fi, low battery — that make an operating system feel inhabited, not just the most recognizable screen.
Do not take shortcuts, substitute a cookie-cutter desktop template, or stop at a superficial approximation. This skill imposes no token budget limit, so pursue the recreation down to the smallest meaningful interactions, states, transitions, and edge cases, and keep refining the look, feel, behavior, and atmosphere until the system feels complete, cohesive, and convincingly Ubuntu.
---
For comparison:
Linux Mint on Fable 5: http://mint.fable.demos.sulat.com/
Prompt @ http://mint.fable.demos.sulat.com/PROMPT.md
Arch (Hyprland) on GPT 5.6 sol: https://arch.sol.demos.sulat.com (password is arch)
Prompt @ https://arch.sol.demos.sulat.com/PROMPT.md
Honestly astounding level of fidelity after a 30-minute run.
Model: Fable 5
Harness: Devin CLI
Here's the prompt:
Create an interactive web-based recreation of the Linux Mint desktop the flagship Cinnamon edition that feels like a living, inhabited operating system rather than a static screenshot. Visitors should be able to log in, roam the desktop, open and arrange windows, launch applications from the Mint Menu, browse files, tweak settings, and discover the small touches that make Mint feel warm, polished, and quietly playful.
Recreate the whole Cinnamon look and feel with close fidelity: the Mint-Y theme and its signature green accent, the default Linux Mint wallpaper aesthetic, the bottom panel with the Mint Menu button, pinned launchers, the window list, system tray, network and sound indicators, workspace tools, and the clock with its calendar popup. The Mint Menu itself deserves full treatment favorites column, categorized application list with hover-switching categories, live search, session buttons for lock, logout, and shutdown along with right-click context menus on the desktop, panel, and files, desktop icons with selection and drag behavior, and notifications that slide in and stack the way Cinnamon's do.
Window management should carry the characteristic rhythm of Cinnamon: draggable title bars with min/max/close buttons in Mint's style, resizing from edges and corners, snap-tiling to halves when dragged to screen edges, focus and layering behavior with proper dimming of unfocused chrome, Alt-Tab-style switching if keyboard support allows, minimize animations to the window list, and workspace switching. Familiar applications should behave as coherent small experiences rather than decorative shells: a Nemo file manager with a navigable home directory tree, sidebar places, icon and list views, and file operations; a text editor that actually edits and saves files into the session's file system; a terminal that accepts a believable set of commands (ls, cd, cat, neofetch and friends) against that same file system; a system settings app with working theme, background, and panel options that genuinely change the desktop; a software-manager-style storefront; a calculator; an image or wallpaper viewer; and a simple Firefox-flavored browser shell with Mint's start page personality.
Include the secondary and edge states that make an operating system feel real: boot or login sequence with the Mint identity, hover and pressed states on every control, empty-folder and permission-flavored messages, dialog boxes with Mint-Y styling, tooltips, cursor changes for resize and move, sound-free but visually convincing volume and brightness feedback, and the quiet idle personality of a desktop at rest. Persist meaningful state wallpaper choice, theme tweaks, file edits, window positions where sensible across the session so the desktop feels owned rather than reset on every click.
Do not take shortcuts, substitute a cookie-cutter fake-desktop template, or stop at a superficially recognizable green taskbar. This skill imposes no token budget limit, so pursue the recreation down to the smallest meaningful interactions the exact proportions of the panel, the corner radii of Mint-Y windows, the timing of menu fades, the texture of context menus and continue refining until the system feels complete, cohesive, and convincingly faithful to Linux Mint Cinnamon in a browser.