--- title: Archive — page 3 — Luke Oliff description: Page 3 of posts originally published elsewhere. canonical: https://lukeocodes.dev/archive/page/3 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 agents can now switch language mid-call](/multilingual-voice-agents) (Jul 2026 · AI · via speechify.ai): Multilingual voice agents now switch language mid-call: one agent, one session, no transfer and no dropped context - just set additional_languages. - [Simba 3.2 is our recommended TTS model: what changed and how to migrate](/simba-3-2-and-the-models-endpoint) (Jul 2026 · News · via speechify.ai): simba-3.2 is now the recommended Speechify TTS model, and GET /v1/audio/models lets you discover it at runtime instead of hardcoding a model list. - [Agent test runs get clear 402 errors on balance and plan tier checks](/agent-test-runs-402-model-override) (Jul 2026 · AI · via speechify.ai): All four agent test-run endpoints now document 402 for a depleted balance or an exhausted spend limit, the single-run path finally takes the admission gate its - [Best TTS Providers 2026: Comparison of the Top 10 APIs](/best-tts-providers-2026-comparison) (Jul 2026 · Text-to-Speech · via speechify.ai): The best TTS providers of 2026, ranked: ten text-to-speech APIs compared on the independent Artificial Analysis Speech Arena for voice quality and price. - [Streaming TTS now carries word-level speech marks](/tts-stream-with-timestamps) (Jul 2026 · Text-to-Speech · via speechify.ai): A new streaming endpoint interleaves word-level timestamps with the audio, so captions and text highlighting no longer have to wait on the non-streamed API. - [Simba 3.0 now speaks six European languages; Simba 1.6 marked legacy](/simba-3-0-multilingual-and-legacy-models) (Jul 2026 · Text-to-Speech · via speechify.ai): Simba 3.0 now speaks six European languages, and the Simba 1.6 models are flagged legacy by a new deprecated flag on the model catalog endpoint. - [Set a per-agent maximum call duration](/per-agent-max-call-duration) (Jul 2026 · AI · via speechify.ai): Voice agents now carry a max_call_duration_seconds field — a hard per-agent wall-clock cap on a single call. - [Filter GET /v1/voices by type, locale, gender, and model](/voices-list-filtering) (Jul 2026 · Text-to-Speech · via speechify.ai): GET /v1/voices now accepts type, locale, gender, and model query filters, applied before pagination so pages stay full — so you can fetch, say, only English cloned - [Per-plan API rate and concurrency limits are now published](/api-rate-and-concurrency-limits-published) (Jul 2026 · APIs · via speechify.ai): The API limits reference now lists per-plan rate limits (requests per second, plus an Agents burst) and concurrency limits for both the TTS and Agents surfaces, and - [Building an AI Voice Cloning Web App with Next.js and Speechify](/building-an-ai-voice-cloning-web-app-with-nextjs-and-speechify) (Jul 2026 · Voice Cloning · via speechify.ai): Build an AI voice cloning web app in Next.js: clone a voice from a browser upload, synthesize speech with it, and keep your API key server-side. 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