Lastslate vs Virgil

Lastslate is a screenplay editor for macOS and Windows with an AI collaborator that reads scripts but does not write dialogue. As a writer types, the editor identifies elements such as sluglines, character cues and dialogue, and saves automatically. It supports Final Draft FDX, Fountain, plain text and PDF, and can turn PDF screenplays into editable scenes. The Beat Board links story beats to script scenes and is included on every plan; Pro adds reference images to beats. Built-in tools derive cast lists, location and prop breakdowns, loglines and one-sheets from a script. Browser review links let recipients comment on script lines without an account, while Pro allows up to 10 writers to co-write one script live. Scripts are stored locally by default, and optional cloud backup is encrypted in transit and at rest. AI actions send the relevant excerpt, prompt and session context to the AI provider for that request. The free plan includes the full editor, Beat Board, PDF and FDX export, 10 cloud projects and limited AI collaboration. Pro costs $15 a month; Pro+ costs $45 a month.

Virgil is writing software for screenwriters, novelists, and other professional storytellers. It supports screenplays, TV scripts, novels, books, podcasts, treatments, pitch decks, and coverage passes. Its workspace includes outlining, scene drafting and revision, screenplay formatting, script coverage, and an autonomous agent mode. Virgil can also turn ideas into storyboards, images, and video; its video studio is labeled beta. Available AI models come from Anthropic, OpenAI, Google, xAI, and open-model providers, including Fable 5, GPT-5.6 Sol, Gemini 3.1 Pro, Grok 4.5, DeepSeek V4 Pro, and Kimi K3. Projects sync to the cloud so drafts and visuals are available on desktop or on the go. It runs on macOS, Windows, and the web, and exports to PDF, Final Draft, and other industry-standard formats. Starter costs $5 a month with $5 in AI usage included each paid month; Pro costs $20 a month with $20 included, and Studio costs $50 a month with $50 included. The card-backed trial ends after 14 days or $20 of AI usage, whichever comes first.