Changelog

New Models in Draft - We've made two super capable AI models available in the Draft tool: Google's Gemini Pro 2.5 and OpenAI's o3. Both models have outstanding reasoning, and early testing suggests they work really well with our recently-added Chapter Continuity feature. Find them in the Experimental section of the Draft tool's Prose Mode selector.

Improved First Draft - We replaced the AI model powering First Draft—that’s the feature that appears in the Plugins dropdown menu in a totally blank document. It’s now faster, more current (helpful for non-fiction!), and can write longer than before.

Write Length Fix - When using Gemini Pro 2.5 with Write, it would sometimes ignore the card length suggestion. We made it so that it's now much more likely to be in the right ballpark.

Page Jumping Bug - There was a disruptive issue where the Sudowrite page would spontaneously jump, causing you to lose your spot in your document. We fixed that!

Character Generation Fix - The Generate button in the Characters section of Story Bible was occasionally creating a random character while ignoring your instructions, especially if you’d provided super detailed guidance. It will now better listen to your guidance and create the character you wanted.

Additional Scene Generation - If you used the Draft tool to generate prose from your Scenes, and then later decided to add an additional scene, prose from that additional scene would fail to generate as expected. We resolved that issue.

Quick Edit Coherency & Formatting - We received several reports of lost line breaks and occasional gibberish from Quick Edit, so we made some improvements to its reliability.

Trash Accessibility - We made the document trash button more visible and clickable for authors using screen readers. (We have additional improvements planned on this front.)

Draft Text Repetition - Certain models, namely Mistral and Deepseek-r1, were repeating Scene contents and occasionally even generating extra scenes. We improved their performance in the Draft tool.

Spontaneous Refresh Fix - We discovered and rolled out a fix for an issue with blank Scenes that could cause the parent document to crash.

Document Export Fix - Documents with comments weren't consistently exporting properly, but we fixed that and now they do.

Disappearing Plugins Menu - The Plugins dropdown menu was collapsing abruptly in some circumstances. We identified and fixed the issue.

Page Refresh Bug - Using the "Fill this in" button in an empty Character or Worldbuilding trait was causing the Sudowrite page to refresh. We've resolved that issue.

Copy Fixes - We updated the language in the Tutorial Projects created on new accounts, and fixed an inaccurate bit of helper text in the Story Bible’s Braindump field.

Sudowrite’s Write and Draft tools just got a huge upgrade — they can now read your entire manuscript like one seamless story, unlocking unparalleled narrative consistency.

Chapter Continuity allows you to link your chapters together in sequence, so that Sudowrite understands the full arc of your book. That means:

• 🧠 Better story smarts: Character arcs develop better, plot points get clever callbacks, and important events aren’t lost (or repeated!).

• 📖 Deeper storytelling: Write and Draft now pull in context from up to 25 previous chapters (or 20,000 words), creating richer scenes and smoother transitions.

• 🛠️ You stay in control: Choose which documents link to which with a simple menu—perfect for linear stories, alternating POVs, flashbacks, or nonlinear timelines.

Working from a Story Bible Outline? Sudowrite will even link chapters automagically (though you can always change or disconnect them). Whether you're writing a sweeping saga or an intricate thriller, Chapter Continuity helps your story stay consistent, coherent, and compelling from first page to last.

These new linking options are now available in the three dot ••• menu next to each document title. Happy writing!

👉 Read more about how Chapter Continuity works in our documentation.

The Draft tool has always incorporated elements of your Story Bible that it recognized in your Scenes, but until now you've had to take our word for it.

We just added Story Bible Detection to Draft, which gives you real time visibility into which Characters and Worldbuilding elements the AI is referencing when generating prose. Detected elements from your Story Bible will now be underlined—whereas elements you've chosen to hide from the AI will not.

This cosmetic update is a signal for the author's reference to let you know when the elements you’ve intended to include are actually being recognized. It’s a great way to:

• Spot typos that would prevent the AI from including an element

• Remind yourself which Characters are visible/hidden to Sudowrite

• Discover why the AI is making some questionable choices

So, no changes to the way the AI works—just more visibility into how your prose is being generated. Speaking of visibility…

We’ve also made a small update to the Visibility toggle in Story Bible. Now when you hover over a Character card, Worldbuilding element, or trait, an eyeball icon will appear. Click the eyeball icon to hide a card or trait from Sudowrite, and a struck-through eyeball icon will take its place. (That will persist, so you always have at-a-glance access to what’s actively hidden.)

Story Bible Detection and the updated Visibility toggle are now available in Sudowrite, though you may need to refresh to see them. Here's hoping you find them as helpful as we have!

We’ve just added Gemini 2.5 Pro to Sudowrite. This is Google’s flagship model, and it's pretty dang impressive. Here's a brief overview.

🧠 Super duper story smarts – Gemini 2.5 Pro is built for step-by-step reasoning and tops lots of recent benchmarks. This means it should be capable of providing cleaner scene logic, and result in fewer rewrites on tangled plots.

📚 A gigantic context window – An enormous (1 million token) context window means that Gemini 2.5 Pro could read both War and Peace and Gone With the Wind and capably write a ~50k word mashup in one shot.

🖋️ Impressive style capture – In testing, Gemini 2.5 Pro has demonstrated a great capacity to replicate a style—meaning it should be excellent at continuations in your voice when using the Write button.

Gemini 2.5 Pro is now available in the Experimental section of your Write settings. It's also available in Plugins. Give it a whirl and let us know what you think! (If you like it, we may bring it to the Draft tool as well.)

The team’s been pretty busy this week! Here’s what’s new:

New Features

Project Auto-Titling – Whenever you add or generate a Synopsis in Story Bible, a title will now be generated for the project you’re working within (unless you’ve already set one yourself).

Custom Worldbuilding Improvements – The + Custom option in the element-type dropdown is now bright purple and, on selection, will have the cursor pre-focused so you can start typing right away.

Improvements & Fixes

Muse Write Improvements – We identified an issue with Muse that could cause poor performance when using the Write button. It produces more coherent results consistently now.

Prose Streaming – We tweaked the way prose generation works: Prose now appears continuously as it's being written, rather than suddenly appearing all at once. This means you can once again pause your prose mid-stream. (We also fixed a bug here, which occasionally caused the last line of a scene to be cut off early.)

Improved Word Count Estimation – We improved the accuracy of the word count estimates that appear when you click Generate in the Draft tool.

Restored Credit Estimation – We also restored improved credit estimates to the Scenes validation step, so you can know in advance roughly how many credits the Draft tool will use.

Tuned Excellent & Claude 3.7 Sonnet – We tweaked the Excellent Prose Mode in response to concerns we'd received regarding overly long chapter generations. It now more reliably generates in rough proportion to other Prose Modes. But! We know some of you prefer lengthy chapter generations, so the version of Claude 3.7 Sonnet available in your Prose Mode's Advanced dropdown remains verbose. We'll continue to optimize Excellent in response to your feedback!

That’s all for now—thanks for the feedback, and keep it coming! 💜

We’ve received a lot of helpful feedback since introducing Scenes to Sudowrite, and today we have two big improvements to the way Scenes work.

First, we increased the quality of Scene generation. Thanks to a more powerful AI model, generated Scenes will now better capture the complexity and nuance of your story. Scenes that Sudowrite writes will now be more detailed, coherent, and longer—better representing the information you’ve included in your Story Bible. Early reviews of this update (from testers in our Discord server) are overwhelmingly positive.

Second, we added a helpful Scenes generation progress indicator. Generating Scenes can take a minute, especially when you’ve got a detailed Story Bible to incorporate. Now you have at-a-glance visibility into the status of that generation, so you’re never left wondering what’s going on behind the… scenes.

These changes are live and available now, though you may need to refresh Sudowrite to see them.

We’ve just added OpenAI’s latest model release, the GPT-4.1 suite, to Sudowrite.

GPT-4.1, GPT-4.1 Mini, and GPT-4.1 Nano are now available—three fresh models with some seriously exciting capabilities. Based on OpenAI's release documentation and some early testing, here’s what you can expect:

• Better instruction following: These models are noticeably better at taking complex instructions and getting it right the first time, even compared to other brainy models like o3-mini. GPT-4.1, in particular, should be capable of following the intricate plot details of your story with more precision and fewer rewrites.

• Increased capacity to read & remember: All three models have a context window of up to 1 million tokens. In practice, that means these models will use the maximum readback available in Sudowrite when writing for you, resulting in better consistency and continuity. It also means you can build Plugins that can read and analyze books longer than Anna Karenina.

• Stellar value: Credit use will always vary depending on what you’re trying to do, but so far GPT-4.1 is being compared favorably to GPT-4 Turbo (Balanced). Meanwhile, the brainy 4.1 Mini is reasonably priced at roughly 2× the cost of 4o Mini—and Nano appears to be impossibly cheap, ~30% cheaper than 4o Mini (Basic).

These models are now available in the Experimental Models section of your Write settings and Draft tool. They're also selectable when building Advanced Plugins. Give them a spin and let us know what you think. We’re curious which you’ll find yourself using, and for what!

The team dedicated this entire week to bug fixes and quality of life improvements. Buckle up.

Improvements

• Find & Replace Improvement - We recently shipped an improved Find & Replace, which better focuses the active instance of a located word. (It also just looks nicer!)

• Write Button Improvements - If you've used Write (Auto or Guided) in a blank document, you may have seen its tendency to "continue" from the end of a linked chapter summary. We improved the way Write works, and it will now use that context to start your chapter from the beginning.

• Right-sized Story Bible Boxes - When empty, the Braindump, Genre, Style, and Synopsis boxes had too much padding. We made them leaner and more elegant.

• Trait Button Improvements - The "Fill this in" button in empty trait fields now disappears once you've started typing. Meanwhile, the Rewrite and Visibility buttons in those fields now appear beneath the text (rather than in the upper right corner)—making those fields work just like Outline.

• Improved Trait Label Handling - Identical or blank trait names on a card ran the risk of tripping up the Rewrite trait functionality. We improved how that's handled behind the scenes to prevent any issues.

• Prevent Unwanted Scrolling - We agreed with feedback saying you shouldn't lose your position in your doc when collapsing the sidebars or changing your editor size, so your scroll position now persists.

• Smarter Quick Tools - We updated the models powering Quick Tools to 4o and 4o mini. Aside from making them smarter and faster, this also means they're less likely to break (even with obscenely long Outline chapter summaries).

Fixes

• Fixed Document Shuffle - We fixed an issue with switching between documents, where doing so in rapid enough succession could cause the selected document to continue to toggle even once you'd stopped clicking.

• Resolved Toolbar Overflow - We shipped a fix preventing the text formatting toolbar at the top of the editor from spilling off to the right at really narrow widths.

• Plugin Testing Fix - The Plugin testing panel was producing a "too much or too little text" error. We fixed that issue, and testing now works as expected.

• Character History Formatting - Story Bible's Characters section has its own History, which appeared narrow and blank when first creating a character card. We fixed that.

• Model Ranking Audit - We resolved a few inconsistencies in the Prose Mode selector's model performance rankings.

• Project Word Count Fix - Total project word counts, as displayed on the homepage's project card, were sometimes incorrect. We found the issue and fixed it so that you always have a proper word count.

• Return to Last Position - We fixed the auto-scroll functionality so that when returning to a document you were working in previously, you're now correctly returned to your last active position.

• Quick Tools Shortcut Fix - The keyboard shortcut for Quick Tools (Mac: ⌘ + K, PC: Control + K) wasn't working unless your cursor was in the document editor. We fixed that, so you can pop open a Quick Tools window from elsewhere in your project.

• Describe Icon Swap - The Describe icon in the Selection Menu was wrong. We fixed it so that it now matches the Toolbar Menu.

• Trait Field Backgrounds - When using dark themes, Characters and Worldbuilding traits used white (rather than theme-appropriate) colored backgrounds. We fixed them, and they look much better.

• Something Went Wrong Fix - Recently we received increased reports of the "Something went wrong" error when using Write with a retired prose mode (such as Fastest or Unfiltered). We identified the issue and shipped a fix.

• Broken Worldbuilding Chiclets - Having an empty Worldbuilding card in your Story Bible caused a broken chiclet to appear as "Looked at" context when using the Write button. We fixed that, so only context actually used is included.

• Scroll to Draft - We made it so you'll now be returned to the Draft box if you click the Typewriter icon while halfway down your document.

• Collapse Hover Consistency - When you mouse over the collapse button for the toolbar or sidebars in a project, you should see that button turn grey. This was not the case for the right (History) bar, but we fixed that.

• Custom Rewrite Text Centering - The text in the Custom Rewrite field was not vertically centered. We fixed that, and Ryan breathed a sigh of relief.

• Fill This In Fix - The "Fill this in" button in an empty trait field would occasionally generate exclusively into the History, leaving the trait field itself blank. We resolved the issue and it will now always populate the trait field.

• Fixed Creativity 11 Muse - If you cranked Muse all the way up to 11, it would sometimes say it was "thinking" while it was actually "writing" which... well, as authors, you can probably appreciate the difficulty there. We fixed that, and a handful of minor associated issues.

• Quick Tools Cut Off - We fixed an issue that would occasionally cause the Quick Tools window to appear cut off inside the editor.

• Restored Draft Border - The bottom border on the Draft tool was missing if you scrolled down in your document while it was open, but we put it back.

• Random Generation Fix - Choosing Random from the Generate menu in Characters or Worldbuilding would occasionally produce a blank card. We identified and fixed the issue, in a stunning refutation of determinism.

Thanks so much for bringing these issues to our attention!