Luke Oliff · Developer relations
Developer relations, written down.
I'm Luke Oliff, Head of Developer Relations at Speechify. I write about docs, developer communities, and the craft of making APIs easy to build with. Everything I publish lives here.
Search covers posts, the CV, and the uses page.
The author, plus the two reasons posts ship late
Writing
Recent posts.
The latest things I published. Post links live at the root, so they stay short and they stay put.
Claude Fable 5 Built a Raccoon Heist Game From a TweetOriginalSimon Willison built a raccoon heist game with Claude Fable 5 from a 2022 tweet. One prompt, two images, and the model shipped a full 3D browser game.AI
AI Coding, One Year Later: What August 2025 Didn't See ComingOriginalThrowback Thursday. A year ago the best coding model had 200K context and scored 49% on SWE-bench. Today Claude Fable 5 scores 95% with 1M context. Here's the gap model by model.AI
Open Source Voice Agents Get Real-Time Speech in Hermes v0.20.0OriginalHermes Agent v0.20.0 brings streaming TTS, barge-in, on-device wake words, and pluggable STT/TTS to open source voice agents. Released August 3, 2026.Voice AI
Voice Emotion Control Moves From SSML to PromptsOriginalVoice emotion control is moving to natural language prompts. Kakao's Kanana-o scores 94.50 on the Korean InstructTTSEval benchmark.Voice AI
EU AI Act Voice Watermarking: What TTS Builders Must KnowOriginalEU AI Act voice watermarking rules took effect August 2, 2026. What TTS providers and voice developers must do to stay compliant.Voice AI
