feat(provider): add Vercel AI Gateway support by matchai · Pull Request #3376 · code-yeongyu/oh-my-openagent

matchai · 2026-04-13T02:23:49Z

Adds vercel as a recognized provider throughout the model resolution system, enabling users with a Vercel AI Gateway API key to use it as a universal fallback. The gateway proxies all supported providers (OpenAI, Anthropic, Google, xAI, MiniMax, Moonshot AI, Z.ai) with automatic multi-provider routing and failover.

The provider string is vercel and model IDs follow the vercel/<sub-provider>/<model> format (e.g. vercel/anthropic/claude-opus-4.6, vercel/minimax/minimax-m2.7, vercel/zai/glm-5).

Model transform

The vercel transform infers the sub-provider from canonical model name prefixes (claude- → anthropic, gpt- → openai, gemini- → google, grok- → xai, minimax- → minimax, kimi- → moonshotai, glm- → zai) and applies gateway-specific name normalization. Claude version dashes become dots via a generic regex (claude-(\w+)-(\d+)-(\d+) → claude-$1-$2.$3) so new claude models need zero changes. The gateway uses gemini-3.1-pro-preview but gemini-3-flash (no -preview), which differs from the native Google API.

Fallback chains

vercel is added to every fallback entry where the model exists on the gateway catalog. Only k2p5 (kimi-for-coding specific) and big-pickle (opencode specific) are excluded. The gateway is always last in the providers list, so native providers take priority.

CLI installer

New --vercel-ai-gateway flag for non-TUI install
TUI prompt: "Do you have a Vercel AI Gateway API key?"
Config detection for re-installs (detects "vercel/" in existing omo config)
Gateway-aware defaults for all agents including librarian/explore

Tests

30 unit tests for the transform (all providers including vercel sub-provider inference, minimax, moonshotai, zai)
73 model-fallback tests including gateway-only snapshots validating full vercel/<sub-provider>/<model> format
31 model-requirements tests updated for new provider arrays

Adds 'vercel' as a recognized provider throughout the model resolution system, enabling users with Vercel AI Gateway to use it as a universal fallback for OpenAI, Anthropic, and Google models. The gateway transform infers the sub-provider from canonical model names (claude->anthropic, gpt->openai, gemini->google) and delegates to the appropriate provider-specific transform, producing model strings like vercel/anthropic/claude-opus-4.6.

github-actions · 2026-04-13T02:24:02Z

All contributors have signed the CLA. Thank you! ✅
_{Posted by the CLA Assistant Lite bot.}

matchai · 2026-04-13T02:27:55Z

I have read the CLA Document and I hereby sign the CLA

matchai · 2026-04-13T02:28:09Z

recheck

The gateway uses google/gemini-3-flash (no -preview suffix) unlike the direct Google API. Give the vercel provider its own transform instead of delegating to sub-provider transforms blindly.

Adds vercel to every fallback entry where the model exists on the gateway (kimi-k2.5, glm-5, glm-4.6v, minimax-m2.7, grok-code-fast-1, gpt-5-nano). Adds inferSubProvider mappings for minimax, moonshotai, and zai. Updates librarian/explore special cases to prefer minimax via gateway over claude-haiku.

…c regex Claude version transforms now use a single regex claude-(\w+)-(\d+)-(\d+) -> claude-$1-$2.$3 instead of one .replace() per model. New claude models need zero changes.

cubic-dev-ai

No issues found across 13 files

Confidence score: 5/5

Automated review surfaced no issues in the provided summaries.
No files require special attention.

_{Auto-approved: Comprehensive implementation of Vercel AI Gateway support with extensive unit tests, snapshot updates, and correctly handled model name transformations across providers.}

cubic-dev-ai

0 issues found across 5 files (changes from recent commits).

_{Requires human review: Changes model ID formatting for existing Anthropic provider (switching from dots to hyphens), which may cause regressions in API calls if downstream clients expect the previous format.}

- Add --vercel-ai-gateway CLI option to install command - Fix librarian/explore priority: native providers (ZAI, Copilot) now take precedence over Vercel gateway - Add hasVercelAiGateway to installer no-provider warning conditions - Add hasVercelAiGateway: false to all test file InstallConfig fixtures - Fix test expectations for model ID format (claude-opus-4.6 vs claude-opus-4-6)

cubic-dev-ai

No issues found across 22 files

Confidence score: 5/5

Automated review surfaced no issues in the provided summaries.
No files require special attention.

_{Requires human review: The PR modifies existing model naming conventions for native Anthropic providers (changing 4-6 to 4.6), which could cause regressions in systems expecting the previous format.}

matchai added 2 commits April 13, 2026 11:22

test: add vercel provider transform tests

aac1713

test: add integration tests for Vercel AI Gateway model resolution

6f72ec7

github-actions bot added a commit that referenced this pull request Apr 13, 2026

@matchai has signed the CLA in #3376

84f980c

matchai changed the title ~~Add Vercel AI Gateway as a provider~~ feat(provider): add Vercel AI Gateway support Apr 13, 2026

matchai added 4 commits April 13, 2026 12:51

fix(provider): use gateway-specific model IDs for vercel transform

542dc89

The gateway uses google/gemini-3-flash (no -preview suffix) unlike the direct Google API. Give the vercel provider its own transform instead of delegating to sub-provider transforms blindly.

refactor(provider): replace per-model string replacements with generi…

effae16

…c regex Claude version transforms now use a single regex claude-(\w+)-(\d+)-(\d+) -> claude-$1-$2.$3 instead of one .replace() per model. New claude models need zero changes.

docs(provider): add comments to vercel transform logic

569addd

matchai marked this pull request as ready for review April 13, 2026 05:06

cubic-dev-ai bot approved these changes Apr 13, 2026

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cubic-dev-ai bot reviewed Apr 13, 2026

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matchai marked this pull request as draft April 13, 2026 06:28

code-yeongyu force-pushed the feat/vercel-ai-gateway branch from ff42fe5 to e3b5c2b Compare April 13, 2026 06:31

code-yeongyu marked this pull request as ready for review April 13, 2026 06:42

cubic-dev-ai bot reviewed Apr 13, 2026

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code-yeongyu merged commit f1cd4d7 into code-yeongyu:dev Apr 13, 2026
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feat(provider): add Vercel AI Gateway support#3376

feat(provider): add Vercel AI Gateway support#3376
code-yeongyu merged 8 commits intocode-yeongyu:devfrom
matchai:feat/vercel-ai-gateway

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