VibeStack Weekly #2: Open coding models, Kimi K3.1 Pro, and the best Twitch clip makers

Hi,

This is VibeStack Weekly #2. It covers 37 sourced releases logged from 19 to 26 October 2026, each with a source, plus the ranking changes from that week. It takes about two minutes to read.

New this week

• Nanbeige4.3-33B (24 Oct). A 33B open model for coding and cowork tasks. The model card lists a context window of up to 524,288 tokens and documents Transformers, SGLang, and vLLM. The weights are Apache 2.0. → https://vibestack.tools/tools/nanbeige-4-3-33b/
• Kimi K3.1 Pro (23 Oct). Moonshot calls it its most capable 3T-class open-weight model so far. It has a 1-million-token context, and the API price is $2 per 1M input tokens and $10 per 1M output tokens. Moonshot says the full weights arrive by 4 November 2026. → https://vibestack.tools/tools/kimi-k3-1-pro/
• NVIDIA Nemotron 3.5 Bolt E4B (23 Oct). An open small language model for voice assistants, device assistants, and characters. NVIDIA says the target workloads fit in about 4GB. It supports a 64k context and 35 languages, and the license is OpenMDW-1.1. → https://vibestack.tools/tools/nemotron-3-5-bolt/
• Recursive Flint (21 Oct). An open-weight model for local agentic coding: a mixture-of-experts model with 40B total and 2.5B active parameters, under Apache 2.0. Recursive says it works with llama.cpp, Ollama, LM Studio, vLLM, and SGLang. → https://vibestack.tools/tools/flint/
• Codex CLI 0.164.0 (23 Oct). Adds ten numbered /presets slots for reusable prompts. Inline /model and /permissions arguments set the model, reasoning effort, and permission profile. → https://vibestack.tools/tools/openai-codex/
• Devin Desktop 3.11.212 (23 Oct). The Agent Window now matches the Devin web app, and you can open up to 8 sessions side by side. → https://vibestack.tools/tools/devin-desktop/
• Replit Monitoring Agent (23 Oct). Agent can investigate production issues from an app's logs and metrics, then attempt and validate fixes. You review and publish them unless you turn on the experimental Auto-republish setting. → https://vibestack.tools/tools/replit/
• OpenAI Decisions API, now generally available (22 Oct). You define a question and its allowed answers, and it returns a probability, a choice, or a rubric score. It runs on GPT-6 Luna at $0.10 per 1M input tokens, with no output-token charge. → https://vibestack.tools/tools/decisions-api/
• HeyGen Video (21 Oct). The heygen-video-1 model generates picture and sound together from one prompt. Clips run 5 to 15 seconds at up to 2K, through the HeyGen API and Creative Studio. → https://vibestack.tools/tools/heygen/
• ElevenLabs Eleven Realtime (20 Oct). Two speech-to-speech models: v1 Mini for lower-cost conversations and v1 Max for longer, multi-step tasks. Both support more than 90 languages. → https://vibestack.tools/tools/elevenlabs/

Also this week: Claude auto mode is becoming the default for new sessions on Pro, Max, and Team (22 Oct). Anthropic donated Agent Skills to the Agentic AI Foundation (22 Oct). ChatGPT added Slides for eligible Pro, Business, and Enterprise users (20 Oct). Claude Duet opened a research preview for US Pro and Max subscribers (21 Oct). Base Labs released Mammoth-1 and Elephant-1 (21 Oct). MiniMax released M3.1 Flash at $0.15 per 1M input tokens (19 Oct). VS Code 1.143 made the Copilot harness the default (19 Oct). All releases with sources: https://vibestack.tools/releases/

Top picks: Best AI clip maker for Twitch and gaming

1. Eklipse, best for game highlights. It connects Twitch, Kick, YouTube, or Facebook and scores moments from gameplay events, loud reactions, and chat, then exports a vertical clip.
2. StreamLadder, the best stream-native editor. Import a Twitch, YouTube, or Kick VOD and edit a vertical clip. ClipGPT, the part that finds the moments, starts on the Creator plan. The free plan is the editor.
3. Opus Clip, the best general long-video clipper. It lists Twitch as a livestream import and includes a gameplay layout.
4. Vizard, the best second general clipper. Paste a Twitch, YouTube, or Zoom link and it pulls captioned vertical clips.

Opus Clip and Vizard have partner links. Neither one sets this order. The full list: https://vibestack.tools/rankings/twitch-clips/

Making voiceovers instead? The YouTube voice shortlist, updated 25 October 2026, covers ElevenLabs, WellSaid, and Speechify: https://vibestack.tools/rankings/youtube-voice/

Ranking highlight: Claude Code vs OpenCode

Pick Claude Code if you want a repo agent included on a paid Claude plan, steered from the terminal or an IDE. Pick OpenCode if you want the agent itself to be free and MIT-licensed. You bring a model, use one of its free models, or run a local one. The verdict, table, and sources: https://vibestack.tools/compare/claude-code-vs-opencode/

The coding-agent shortlist (Claude Code, Cursor, Codex, Devin, and more): https://vibestack.tools/rankings/coding-agents/

Know someone who ships with AI?

Got a tool we should review? https://vibestack.tools/submit/

Disclosure: some tool pages on VibeStack include affiliate (partner) links, and these are labelled. If you buy through one, we may earn a commission at no extra cost to you. Featured listings are paid and labelled too. Neither one ever changes a score or a ranking. Details: https://vibestack.tools/disclosure/