Compare AI tools

	Sudowrite S	GitHub Copilot B	DeepInfra A	HeyGen S
Tagline	AI writing tool built specifically for fiction writers.	Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.	Blazing-fast, pay-as-you-go inference API for open-source LLMs and multimodal models, now plugged directly into the Hugging Face ecosystem.	AI avatar videos. Record once, speak any language.
Category	Writing	Coding	Dev Platform	Video
Pricing	$19-$59/mo	Free (limited) + $10/mo Pro + $19/mo Business	Free $5 credit on signup, then pay-as-you-go from $0.06/M tokens	Free + $24-$65/mo
Best for	Novelists, screenwriters, fiction short-form writers.	Teams with GitHub already. Devs who don't want to change IDEs.	Backend developers and ML engineers who want the cheapest reliable inference for open-weight LLMs in production, especially those already living inside the Hugging Face ecosystem.	Course creators, multilingual marketers, anyone scaling video content.
Strengths	Brainstorm, expand, rewrite modes designed for fiction Story Bible for character + plot tracking Understands voice + tone better than generic chatbots	Great enterprise story Works in your existing IDE Chat + autocomplete	Among the cheapest per-token rates for open-source models — consistently undercuts Together AI and Fireworks on small models OpenAI-compatible API means zero migration headache from existing stacks Now a first-class Hugging Face Inference Provider, so HF-native workflows (SDKs, Playground, agent harnesses) get DeepInfra with a one-line swap Runs on H100/A100 and NVIDIA Blackwell GPUs with auto-scaling and 99.982% uptime SLA on dedicated tier Supports LoRA adapter deployments and private custom model hosting, not just public models	Clone your face + voice in 2 minutes Instant translation into 40+ languages with lip sync Avatars look less uncanny than competitors
Weaknesses	Pricey for casual use Fiction-only focus — not for business writing	Less agentic than Cursor/Claude Code Model quality varies	Primarily developer/API-first — no meaningful consumer-facing product or chat UI to speak of Model breadth (77 tracked) lags behind aggregators like OpenRouter or Replicate for niche or newly-released models No free tier beyond the $5 signup credit; requires a card or prepayment to continue	Pricey for serious volume Long shots still feel off Ethics — easy to misuse
Kai's verdict	S-tier for fiction. If you're writing a novel, this beats raw ChatGPT every time.	B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.	DeepInfra is the quiet workhorse of the inference API space — serious price performance on H100s, a genuinely clean OpenAI-compatible API, and now a native HF provider makes it a strong default choice for any team running open-source models at scale. (Verdict pending Phi's full review.)	S-tier for multilingual video. If you sell courses or speak at events, this is a cheat code.
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