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HomeDocsClaude Documentation 13 Oct 2026
One change · claude-docs

Deploy Claude Desktop on 3P with an LLM gateway changedthird-party/claude-desktop/gateway

Nearest release: v2.1.299, published 8 hours after upstream edited the page. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.

Upstream edited this page at 13 Oct 2026 15:56 UTC, give or take a minute or two: the time comes from Anthropic’s own sitemap rather than from a commit. This site recorded the change at 13 Oct 2026 16:07 UTC.

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370370**The 1M context window entry does not appear in the picker.** `supports1m` takes effect only when the entry's `name` matches the model ID the picker uses. Setting it on a bare alias (for example `sonnet`) while discovery returns full model IDs produces no match. Set `supports1m` on an entry whose `name` is the exact ID your gateway's `/v1/models` endpoint returns. With `prefer1m` or `modelPrefer1mContext` set, a model whose `name` matches has one entry and no **1M context window** label.
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372**`Your context window is full` in a Code session, or `This conversation is too long to continue. Start a new session, or remove some tools to free up space.` in a Cowork session.** The app shows these when Claude Code reports `Prompt is too long · automatic compaction failed: …`, meaning a session tried to compact the conversation and the summary request failed. Despite that wording, the conversation isn't lost. After you fix the cause, the user's next message in the same session retries compaction. The error the summary request returned is in the gateway's logs as the response to the session's last `POST /v1/messages` request before the failure. Match it to a cause as follows.
372**`Your context window is full` in a Code session, or `Couldn’t compact this conversation to free up space. Try again, or start a new session.` in a Cowork session.** The app shows these when Claude Code reports `Prompt is too long · automatic compaction failed: …`, meaning a session tried to compact the conversation and the summary request failed. On Claude Desktop versions earlier than 2.37337, a Cowork session shows `This conversation is too long to continue. Start a new session, or remove some tools to free up space.` for the same failure. The conversation isn't lost. After you fix the cause, the user's next message in the same session retries compaction. The error the summary request returned is in the gateway's logs as the response to the session's last `POST /v1/messages` request before the failure. Match it to a cause as follows.
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374374* **A timeout, `504`, or `524`**: a proxy or load balancer on the route closed the summary response before it finished. See the streaming requirement in [Context window and compaction](#context-window-and-compaction).
375375* **`401`, `402`, or `403`**: the gateway credential expired, or the gateway's quota for the user is spent. Have the user sign in again or issue a new key, or raise the quota.
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