OpenCode error
OpenCode: undefined: The provided model identifier is invalid
undefined: The provided model identifier is invalid.Status: Fixed in releaseLast verified 1 documented fix3 sources
What it means
Amazon Bedrock rejected the model ID OpenCode sent. In #11037 the request URL showed us.us.anthropic.claude-sonnet-4-5-20250929-v1:0, with the region prefix added twice.
Causes
- OpenCode added a region prefix to cross-region inference model IDs that already had one. A maintainer: "the
us.us.in the URL shows the region prefix was being added twice."
How to fix it
- Fix 1.
Update to v1.1.51 or later. The maintainer: "This was already fixed in v1.1.51 (commit b942e0b - "fix: prevent double-prefixing of Bedrock cross-region inference models")". The fix checks for
us.,eu.,jp.,apac.andau.before adding a prefix. The maintainer gave these update commands (the npm package isopencode-ai).Terminalnpm install -g opencode-ai@latest # or bun install -g opencode-ai@latest
More OpenCode errors
All 17 OpenCode errorsProviderModelNotFoundErrorStatus: By designProviderInitErrorStatus: WorkaroundAI_APICallErrorStatus: WorkaroundThis credential is only authorized for use with Claude Code and cannot be used for other API requests.Status: By designAI_APICallError: messages.13: `tool_use` ids were found without `tool_result` blocks immediately after: toolu_01CfJCsh21fK1pAXsXWYJYBA, toolu_01NoqnwsaxoK3AYM2FyrxmjN. Each `tool_use` block must have a corresponding `tool_result` block in the next message.Status: Fixed in releasemessages.3.content.0.type: Expected `thinking` or `redacted_thinking`, but found `tool_use`. When `thinking` is enabled, a final `assistant` message must start with a thinking block (preceeding the lastmost set of `tool_use` and `tool_result` blocks). We recommend you include thinking blocks from previous turns. To avoid this requirement, disable `thinking`.Status: WorkaroundError: Unexpected error, check log file at [user-home]/.local/share/opencode/log/2025-08-26T215857.log for more detailsStatus: WorkaroundAI_RetryError: Failed after 4 attempts. Last error: Too Many RequestsStatus: Workaround
Related reading
- OpenCode Hacked: What the Console Breach Means for Your API KeysOpenCode disclosed a breach of its Console that may have exposed provider keys. Who is affected, what to rotate today, and why hosted key gateways are the real risk.
- OpenCode 2: How to Upgrade From v1 Without Breaking Your SetupOpenCode 2 upgrade from v1: what the migration guide says breaks (plugins, server API, TUI config), what carries over, and a safe checklist before you switch.
- Run Your Coding Agent as an API: OpenCode Server on RailwayOpenCode server on Railway: run opencode serve in a container as a password-protected HTTP API with a persistent volume, reachable from any machine or webhook.
- Give Every Agent PR a Live Preview: Railway Environments for AI Pull RequestsRailway preview environments for agent pull requests: an isolated copy of your whole stack for every PR, so you verify agent changes by running them.
- GPT-6 Astra Release Guide: Benchmarks, $10/$50 Pricing, and How to Run It in Codex and OpenCodeGPT-6 Astra release guide: OpenAI's max-capability model, its $10/$50 pricing and 1.05M context, what the benchmarks do and do not say, and commands to try it.
- Put an AI Reviewer on Every Pull Request: A Webhook Build with OpenCode and RailwayBuild an AI pull request reviewer on Railway: a webhook service runs OpenCode headless on every PR diff and posts findings as a review, never touching the code.
FAQ
What does "undefined: The provided model identifier is invalid" mean in OpenCode?
Amazon Bedrock rejected the model ID OpenCode sent. In #11037 the request URL showed us.us.anthropic.claude-sonnet-4-5-20250929-v1:0, with the region prefix added twice.
How do I fix "undefined: The provided model identifier is invalid"?
Update to v1.1.51 or later. The maintainer: "This was already fixed in v1.1.51 (commit b942e0b - "fix: prevent double-prefixing of Bedrock cross-region inference models")". The fix checks for us., eu., jp., apac. and au. before adding a prefix. The maintainer gave these update commands (the npm package is opencode-ai).
Is this OpenCode error fixed?
Status: Fixed in release. A release fixed this. The affected versions note says where the fix landed. Affected versions: Reported on 1.1.39 through 1.1.50. Fixed in v1.1.51.
Sources
Last verified against 3 sources: official docs, maintainer replies and release notes.
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