Day 0 Support: GPT-5.5 and GPT-5.5 Pro
LiteLLM now supports GPT-5.5 and GPT-5.5 Pro on Day 0. Route traffic to OpenAI's latest frontier model through the LiteLLM AI Gateway with no code changes.
6 posts tagged with "day 0 support"
View All TagsDAY 0 Support: Gemini 3.1 Flash Lite Preview on LiteLLM
LiteLLM now supports gemini-3.1-flash-lite-preview with full day 0 support!
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If you only want cost tracking, you need no change in your current Litellm version. But if you want the support for new features introduced along with it like thinking levels, you will need to use v1.80.8-stable.1 or above.
Day 0 Support: GPT-5.3-Codex
LiteLLM now supports GPT-5.3-Codex on Day 0, including support for the new assistant phase metadata on Responses API output items.
DAY 0 Support: Gemini 3.1 Pro on LiteLLM
LiteLLM now supports gemini-3.1-pro-preview and all the new API changes along with it.
DAY 0 Support: Gemini 3 Flash on LiteLLM
LiteLLM now supports gemini-3-flash-preview and all the new API changes along with it.
note
If you only want cost tracking, you need no change in your current Litellm version. But if you want the support for new features introduced along with it like thinking levels, you will need to use v1.80.8-stable.1 or above.
DAY 0 Support: Gemini 3 on LiteLLM
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This guide covers common questions and best practices for using gemini-3-pro-preview with LiteLLM Proxy and SDK.