--- title: Archive — page 2 — Luke Oliff description: Page 2 of posts originally published elsewhere. canonical: https://lukeocodes.dev/archive/page/2 type: website locale: en_GB robots: noindex, follow feed: https://lukeocodes.dev/rss.xml search: https://lukeocodes.dev/search.json?q={query} schema: - "@context": https://schema.org "@graph": - "@type": WebSite "@id": https://lukeocodes.dev/#website url: https://lukeocodes.dev name: Luke Oliff alternateName: lukeocodes inLanguage: en publisher: "@id": https://lukeocodes.dev/authors/luke#person description: Personal blog and writing by Luke Oliff — developer relations, voice AI, developer experience. potentialAction: - "@type": SearchAction target: "@type": EntryPoint urlTemplate: https://lukeocodes.dev/blog/search?q={search_term_string} query-input: required name=search_term_string - "@type": Person "@id": https://lukeocodes.dev/authors/luke#person name: Luke Oliff url: https://lukeocodes.dev/authors/luke description: Engineer and developer relations leader. Writing about developer relations, AI, and the voice industry, from the UK. mainEntityOfPage: https://lukeocodes.dev/authors/luke givenName: Luke familyName: Oliff image: https://lukeocodes.dev/authors/luke.jpg jobTitle: Engineer and developer relations leader sameAs: - https://www.linkedin.com/in/lukeocodes - https://github.com/lukeocodes - https://bsky.app/profile/lukeocodes.dev - https://x.com/lukeocodes - https://hashnode.com/@lukeocodes - https://dev.to/lukeocodes knowsAbout: - Developer Relations - Developer Experience - Voice AI - Text-to-Speech - Answer Engine Optimisation - Search Engine Optimisation - Open Source - Developer Tooling - API Design - Speech-to-Text - Voice Agents - Community Building knowsLanguage: - English nationality: British alumniOf: - "@type": Organization name: The Open University --- [Luke Oliff.](/) - [Blog](/blog) - [CV](/cv) - [Uses](/uses) - [User manual](/user-manual) - [Living with ADHD](/living-and-working-with-adhd) - [RSS](/rss.xml) [Luke Oliff · Archive](/blog) # Archive. Posts originally published elsewhere, collected here with their canonical source. 108 posts **2026** - [Voice agent multilingual language list is now server-driven](/agent-multilingual-languages-server-driven) (Aug 2026 · Voice Agents · via speechify.ai): GET /v1/agents/voices now returns a multilingual_languages field listing every language an agent may declare in additional_languages, so language pickers render - [Widget error reporting and startAgent connect-failure contract](/widget-error-codes-and-startagent-behavior) (Aug 2026 · Voice Agents · via speechify.ai): The voice-agent widget now reports real failure codes on widget.error instead of always-unknown, and startAgent() connect failures arrive on the promise rejection - [Models list now reports per-model endpoints and curated-voice flag](/models-endpoint-per-model-capabilities) (Jul 2026 · Text-to-Speech · via speechify.ai): GET /v1/audio/models now returns endpoints and curated_voices per model, so a model picker can show only valid synthesis routes and reject unsuitable voice - [Multilingual voiceover with the Speechify API and simba-3.0](/multilingual-voiceover-with-speechify-and-simba-3-0) (Jul 2026 · Text-to-Speech · via speechify.ai): Multilingual voiceover with simba-3.0: generate one script in English, German, Spanish, French, Italian and Portuguese through the Speechify TTS API. - [Widget now served from cdn.speechify.ai; new flow_budget_exhausted call end reason](/widget-cdn-flow-budget-exhausted) (Jul 2026 · Voice Agents · via speechify.ai): Widget embeds now load from cdn.speechify.ai, and a new flow_budget_exhausted end reason closes a call cleanly when an agent flow blows its per-call budget. - [Widget bundle compression and session spend-limit 402](/widget-bundle-compression-session-402) (Jul 2026 · Voice Agents · via speechify.ai): The voice-agent widget is now served compressed - 676 kB down to 190 kB when it was measured - supports version-pinned URLs with subresource integrity, and session - [TTS 404s now name the fix instead of a generic not-found](/audio-404s-diagnosable-by-cause) (Jul 2026 · Text-to-Speech · via speechify.ai): Audio 404s now name their cause: a bad voice_id returns voice_not_found, a bad model returns a model-not-found message, on speech and both stream endpoints. - [Speech generation in the Vercel AI SDK with Speechify](/speech-generation-in-the-vercel-ai-sdk-with-speechify) (Jul 2026 · TypeScript · via speechify.ai): The AI SDK ships generateSpeech() but no Speechify provider. So we wrote one: a dependency-free custom speech model that maps POST /v1/audio/speech onto the SDK's - [Free tier TTS requests get a burst allowance](/tts-free-tier-burst-allowance) (Jul 2026 · APIs · via speechify.ai): Free-tier /v1/audio/* requests get a 10-request burst bucket instead of capping at the 1 req/s sustained rate, so a first quickstart script no longer 429s on its - [Every public API header now has one canonical, un-prefixed name](/speechify-header-namespace) (Jul 2026 · APIs · via speechify.ai): One namespace, one name: Speechify-Request-Id and RateLimit-* are now the canonical public API headers, with X-prefixed spellings honoured until 2027-07-24. Page 2 of 11. [← Newer](/archive) · [Older →](/archive/page/3) ## Search this site `GET https://lukeocodes.dev/search.json?q=` returns matching posts as JSON, each with its page URL and its markdown URL. Add `&limit=<1-50>` for more than 10. How it works: [/blog/search](https://lukeocodes.dev/blog/search.md). ```sh curl "https://lukeocodes.dev/search.json?q=developer+relations" ``` --- © 2026 Luke Oliff. Posts live at the root of this site. - [GitHub](https://github.com/lukeocodes) - [LinkedIn](https://www.linkedin.com/in/lukeocodes) - [X](https://x.com/lukeocodes) - [Bluesky](https://bsky.app/profile/lukeocodes.dev) - [Email](mailto:luke@lukeoliff.com) - [RSS](/rss.xml) ## Cookies This site sets one analytics cookie, from Google Analytics, and only in a browser that accepts the cookie banner. A client that does not run scripts sets no cookies, so there is nothing to accept or decline here. [Cookie policy](/cookies)