managarten/packages/shared-llm/src/backends/byok-providers/openai.ts
Till JS a33857fa39 feat(llm): add BYOK tier + 4 provider adapters (OpenAI, Anthropic, Gemini, Mistral)
Phase 1-3 of BYOK support. Introduces a 5th LLM tier 'byok' that
routes to user-provided API keys via direct browser fetches.

shared-llm additions:
- LlmTier extended with 'byok' (rank 3, between mana-server and cloud)
- ByokBackend: LlmBackend implementation that delegates key lookup
  to an app-provided resolver callback, then dispatches to the right
  provider adapter
- 4 provider adapters:
  - OpenAI (gpt-5, gpt-4o, o1 family)
  - Anthropic (Claude Opus/Sonnet/Haiku 4.6) with CORS header
  - Gemini (2.5 Pro/Flash) — REST API with different message format
  - Mistral — OpenAI-compatible, reuses shared openai-compat adapter
- Pricing table for 20+ models with USD per 1M tokens
- estimateCost() + formatCost() helpers

Keys stay device-local (IndexedDB in next phase). Browser-direct
fetches mean keys never touch Mana's server.

Updates two existing tier maps (memoro DetailView, SourceBadge) to
include the new tier.

Planning doc at docs/architecture/BYOK_PLAN.md.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-14 15:06:48 +02:00

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TypeScript

import type { ByokProvider, ByokCallOptions } from './types';
import { callOpenAiCompat } from './openai-compat';
import type { GenerateResult } from '../../types';
export const openaiProvider: ByokProvider = {
id: 'openai',
displayName: 'OpenAI',
defaultModel: 'gpt-4o-mini',
availableModels: ['gpt-5', 'gpt-5-mini', 'gpt-4o', 'gpt-4o-mini', 'gpt-4-turbo', 'o1', 'o1-mini'],
async call(opts: ByokCallOptions): Promise<GenerateResult> {
return callOpenAiCompat({ baseUrl: 'https://api.openai.com/v1', providerName: 'OpenAI' }, opts);
},
};