{"slug": "gpt-oss-120b-now-available-on-telnyx-inference", "title": "gpt-oss-120b Now Available on Telnyx Inference", "summary": "Telnyx has made OpenAI's open-weight gpt-oss-120b reasoning model available in beta on Telnyx Inference, hosted on Telnyx-owned GPUs in US regions. The model offers a 128K context window and configurable reasoning effort, and teams running OpenAI-compatible clients can switch the base URL to Telnyx without changing their code, calling it as `model=openai/gpt-oss-120b`. Telnyx said owning the infrastructure lets it add models quickly and keep pricing at a fraction of proprietary APIs.", "body_md": "[Contact sales](https://telnyx.com/contact-us)\n\n[Log in](https://portal.telnyx.com)\n\ngpt-oss-120b, an open-weight reasoning model built by OpenAI, is now available on [Telnyx Inference](https://telnyx.com/products/inference) in beta, hosted on Telnyx-owned GPUs in US regions.\n\n`model=openai/gpt-oss-120b` in the OpenAI built gpt-oss-120b in the US and released it as open weights, and Telnyx serves it on Telnyx-owned GPUs inside the United States. Because we own the infrastructure, adding models like this is fast and pricing stays at a fraction of proprietary APIs.\n\nThe model documentation positions gpt-oss-120b for open-weight reasoning. With a 128K context window and configurable reasoning effort, it fits reasoning-heavy workloads like document analysis and agentic planning, and teams already running OpenAI-compatible clients can switch the base URL to Telnyx without changing their code.\n\n```\ncurl -X POST https://api.telnyx.com/v2/ai/openai/chat/completions \\\n  -H \"Authorization: Bearer $TELNYX_API_KEY\" \\\n  -H \"Content-Type: application/json\" \\\n  -d '{\n    \"model\": \"openai/gpt-oss-120b\",\n    \"messages\": [\n      {\"role\": \"user\", \"content\": \"Prove that the square root of 2 is irrational.\"}\n    ]\n  }'\n```\n\n**Learn more** in the [model documentation](https://developers.telnyx.com/docs/inference/models).", "url": "https://wpnews.pro/news/gpt-oss-120b-now-available-on-telnyx-inference", "canonical_source": "https://telnyx.com/release-notes/gpt-oss-120b", "published_at": "2026-10-30 00:00:00+00:00", "updated_at": "2026-10-30 12:48:30.150940+00:00", "lang": "en", "topics": ["artificial-intelligence", "large-language-models", "ai-infrastructure", "ai-products", "ai-tools"], "entities": ["Telnyx", "OpenAI", "gpt-oss-120b", "Telnyx Inference"], "also_reported_by": [], "alternates": {"html": "https://wpnews.pro/news/gpt-oss-120b-now-available-on-telnyx-inference", "markdown": "https://wpnews.pro/news/gpt-oss-120b-now-available-on-telnyx-inference.md", "text": "https://wpnews.pro/news/gpt-oss-120b-now-available-on-telnyx-inference.txt", "jsonld": "https://wpnews.pro/news/gpt-oss-120b-now-available-on-telnyx-inference.jsonld"}}