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feat(http): opt-in HTTP/2 for outbound LLM requests #30370

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feat(http): opt-in HTTP/2 for outbound LLM requests #30370

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4e76ea1
feat(http): opt-in HTTP/2 for outbound LLM requests
KevinZhao Jun 13, 2026
391da31
fix(http): drop SSLContext arg to HTTPHandler in sync OpenAI http2 path
KevinZhao Jun 13, 2026
35d35e5
fix(http): address HTTP/2 review feedback on OpenAI/Azure client buil…
KevinZhao Jun 13, 2026
82687c9
fix(http): restore 'Using AiohttpTransport' debug log in async transp…
KevinZhao Jun 15, 2026
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9 changes: 9 additions & 0 deletions litellm/__init__.py
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Original file line number Diff line number Diff line change
Expand Up @@ -465,6 +465,15 @@
force_ipv4: bool = (
False # when True, litellm will force ipv4 for all LLM requests. Some users have seen httpx ConnectionError when using ipv6.
)
enable_http2: bool = (
False # opt-in: use HTTP/2 for outbound LLM requests. Forces the httpx transport (aiohttp cannot speak HTTP/2) and requires the `h2` package.
)
http2_max_connections: Optional[int] = (
None # when enable_http2 is True, max number of (multiplexed) connections in the httpx pool. None -> httpx default.
)
http2_max_keepalive_connections: Optional[int] = (
None # when enable_http2 is True, max number of idle keep-alive connections. None -> httpx default.
)
network_mock: bool = False # When True, use mock transport — no real network calls

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