Custom providers in Pi: Synthetic provider extension

synthetic-provider.gist.ts

import type { ExtensionAPI } from "@earendil-works/pi-coding-agent";

// [!code fold:start] thinking level map
const THINKING_LEVEL_MAP = {
  minimal: "low",
  low: "low",
  medium: "medium",
  high: "high",
  xhigh: "high",
} as const;
// [!code fold:end]

export default function (pi: ExtensionAPI) {
  pi.registerProvider("synthetic", {
    baseUrl: "https://api.synthetic.new/openai/v1",
    apiKey: "SYNTHETIC_API_KEY",
    api: "openai-completions",
    // [!code fold:start] model definitions
    models: [
      {
        id: "hf:zai-org/GLM-5",
        name: "zai-org/GLM-5",
        reasoning: true,
        input: ["text"],
        cost: {
          input: 1,
          output: 6,
          cacheRead: 1,
          cacheWrite: 0,
        },
        contextWindow: 196608,
        maxTokens: 65536,
        thinkingLevelMap: THINKING_LEVEL_MAP,
        compat: {
          supportsDeveloperRole: false,
          supportsReasoningEffort: true,
        },
      },
      {
        id: "hf:moonshotai/Kimi-K2.5",
        name: "moonshotai/Kimi-K2.5",
        reasoning: true,
        input: ["text", "image"],
        cost: {
          input: 0.45,
          output: 3.4,
          cacheRead: 0.45,
          cacheWrite: 0,
        },
        contextWindow: 262144,
        maxTokens: 65536,
        thinkingLevelMap: THINKING_LEVEL_MAP,
        compat: {
          supportsDeveloperRole: false,
          supportsReasoningEffort: true,
        },
      },
      {
        id: "hf:nvidia/Kimi-K2.5-NVFP4",
        name: "nvidia/Kimi-K2.5-NVFP4",
        reasoning: true,
        input: ["text", "image"],
        cost: {
          input: 0.45,
          output: 3.4,
          cacheRead: 0.45,
          cacheWrite: 0,
        },
        contextWindow: 262144,
        maxTokens: 65536,
        thinkingLevelMap: THINKING_LEVEL_MAP,
        compat: {
          supportsDeveloperRole: false,
          supportsReasoningEffort: true,
        },
      },
      {
        id: "hf:MiniMaxAI/MiniMax-M2.5",
        name: "MiniMaxAI/MiniMax-M2.5",
        reasoning: true,
        input: ["text"],
        cost: {
          input: 0.4,
          output: 2,
          cacheRead: 0.4,
          cacheWrite: 0,
        },
        contextWindow: 191488,
        maxTokens: 65536,
        thinkingLevelMap: THINKING_LEVEL_MAP,
        compat: {
          supportsDeveloperRole: false,
          supportsReasoningEffort: true,
        },
      },
      {
        id: "hf:zai-org/GLM-4.7-Flash",
        name: "zai-org/GLM-4.7-Flash",
        reasoning: true,
        input: ["text"],
        cost: {
          input: 0.1,
          output: 0.5,
          cacheRead: 0.1,
          cacheWrite: 0,
        },
        contextWindow: 196608,
        maxTokens: 65536,
        thinkingLevelMap: THINKING_LEVEL_MAP,
        compat: {
          supportsDeveloperRole: false,
          supportsReasoningEffort: true,
        },
      },
      {
        id: "hf:nvidia/NVIDIA-Nemotron-3-Super-120B-A12B-NVFP4",
        name: "nvidia/NVIDIA-Nemotron-3-Super-120B-A12B-NVFP4",
        reasoning: true,
        input: ["text"],
        cost: {
          input: 0.3,
          output: 1,
          cacheRead: 0.3,
          cacheWrite: 0,
        },
        contextWindow: 262144,
        maxTokens: 65536,
        thinkingLevelMap: THINKING_LEVEL_MAP,
        compat: {
          supportsDeveloperRole: false,
          supportsReasoningEffort: true,
        },
      },
      {
        id: "hf:zai-org/GLM-4.7",
        name: "zai-org/GLM-4.7",
        reasoning: true,
        input: ["text"],
        cost: {
          input: 0.45,
          output: 2.19,
          cacheRead: 0.45,
          cacheWrite: 0,
        },
        contextWindow: 202752,
        maxTokens: 65536,
        thinkingLevelMap: THINKING_LEVEL_MAP,
        compat: {
          supportsDeveloperRole: false,
          supportsReasoningEffort: true,
        },
      },
    ],
    // [!code fold:end]
  });
}