Vertex
A machine learning platform offered by Google Cloud for training, deploying and managing AI models, which also provides gateway services for enterprise access to models.
Timeline (last 90 days)
Claude Code v2.1.304 introduced a regression: when an endpoint or gateway rejects tool search, or the gateway does not include it in --tools, every request to Vertex, Bedrock and other providers fails.
/auto-mode-setup covers Bedrock, Vertex, Foundry, Claude apps gateway, and sessions with telemetry disabled.
v2.1.302 fixes the issue where, after switching to Vertex or Bedrock mid-session, requests failed with "diagnostics: Extra inputs are not permitted".
9router provides a three-tier automatic fallback mechanism: Tier 1 is subscriptions (such as Claude Code, Codex, Copilot), Tier 2 is low-cost Providers (such as GLM, MiniMax, Kimi), and Tier 3 is free Providers (such as Kiro, OpenCode Free, Vertex, NVIDIA NIM), automatically jumping to the next tier when one tier's quota is exhausted.
Vercel's support Agent Vertex now automates 91% of support tickets, saving 5,000 engineer hours per month.
Gemini and Vertex only send precise thinkingBudget to models that declare support for budgets, while Gemini models that only support level receive thinking level.
Opus 4.7+ 和 Fable 模型现在在 Bedrock、Vertex、Foundry 以及 Claude apps 网关上默认使用100万（1M）上下文窗口，不再需要 [1m] 后缀
AGENTS.md support was not yet available on Bedrock, Vertex, or Foundry at the time of release.
Claude Code's AGENTS.md compatibility rules can be modified in Config's Project Instructions, but currently do not cover hosted environments such as Bedrock, Vertex, and Foundry.
The AGENTS.md feature has not yet been rolled out to the Bedrock, Vertex, and Foundry platforms.
6 more timeline events
All Facts (14)
Claude Code v2.1.304 introduced a regression: when an endpoint or gateway rejects tool search, or the gateway does not include it in --tools, every request to Vertex, Bedrock and other providers fails.
50%Unverified/auto-mode-setup covers Bedrock, Vertex, Foundry, Claude apps gateway, and sessions with telemetry disabled.
50%Unverifiedv2.1.302 fixes the issue where, after switching to Vertex or Bedrock mid-session, requests failed with "diagnostics: Extra inputs are not permitted".
50%Unverified9router provides a three-tier automatic fallback mechanism: Tier 1 is subscriptions (such as Claude Code, Codex, Copilot), Tier 2 is low-cost Providers (such as GLM, MiniMax, Kimi), and Tier 3 is free Providers (such as Kiro, OpenCode Free, Vertex, NVIDIA NIM), automatically jumping to the next tier when one tier's quota is exhausted.
50%UnverifiedVercel's support Agent Vertex now automates 91% of support tickets, saving 5,000 engineer hours per month.
50%UnverifiedGemini and Vertex only send precise thinkingBudget to models that declare support for budgets, while Gemini models that only support level receive thinking level.
50%UnverifiedClaude Code's AGENTS.md compatibility rules can be modified in Config's Project Instructions, but currently do not cover hosted environments such as Bedrock, Vertex, and Foundry.
50%UnverifiedThe maxEffortLevel configuration covers all API providers, including Bedrock, Vertex, and Foundry.
50%UnverifiedBedrock, Vertex, Foundry, and other sessions now explicitly inform Claude when an MCP server connection fails, rather than letting it mistakenly assume the tools do not exist
50%UnverifiedThe update fixed the issue where CLAUDE_CODE_MAX_CONTEXT_TOKENS was ineffective for Vertex-style model IDs (with @YYYYMMDD suffixes).
50%UnverifiedFixed credential and authentication header leakage issues on multiple platforms including Bedrock, Vertex, and Foundry, including a problem where residual Anthropic API keys were being sent alongside Foundry subscription key mode requests.
50%UnverifiedOpus 4.7+ 和 Fable 模型现在在 Bedrock、Vertex、Foundry 以及 Claude apps 网关上默认使用100万（1M）上下文窗口，不再需要 [1m] 后缀
50%UnverifiedBedrock, Vertex, Foundry, and installations with telemetry disabled now use the v2 MCP client and MCP 2026-07-28 negotiation mechanism by default.
50%UnverifiedThis update introduced a cross-session messaging mechanism (SendMessage / ListAgents), allowing different sessions on the same machine to communicate with each other, with support for Bedrock, Vertex, and Foundry, working even when telemetry is disabled.
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