feat: add 5.5 models to gateway

packages/cost/models/authors/openai/gpt-5.5/endpoints.ts

@@ -0,0 +1,101 @@
+import { ModelProviderName } from "../../../providers";
+import type { ModelProviderConfig } from "../../../types";
+import { GPT54ModelName } from "./models";
+
+export const endpoints = {
+  "gpt-5.5:openai": {
+    providerModelId: "gpt-5.5-2026-04-23",
+    provider: "openai",
+    author: "openai",
+    pricing: [
+      {
+        threshold: 0,
+        input: 0.0000050, // $5.00 per 1M tokens
+        output: 0.000030, // $30.00 per 1M tokens
+        web_search: 0.01, // $10 per 1000 searches (1:1 USD; 10/1K)
+        cacheMultipliers: {
+          cachedInput: 0.1, // $0.50 per 1M tokens
+        },
+      },
+      {
+        threshold: 272000,
+        input: 0.000010, // $5.00 per 1M tokens (2x for >272K context)
+        output: 0.000045, // $45.00 per 1M tokens (1.5x for >272K context)
+      },
+    ],
+    contextLength: 1_050_000,
+    maxCompletionTokens: 128_000,
+    rateLimits: {
+      rpm: 15000,
+      tpm: 40000000,
+      tpd: 15000000000,
+    },
+    supportedParameters: [
+      "tools",
+      "tool_choice",
+      "seed",
+      "max_completion_tokens",
+      "response_format",
+      "stop",
+      "verbosity",
+      "temperature",
+      "top_p",
+      "logprobs",
+    ],
+    unsupportedParameters: [
+      "presence_penalty",
+      "frequency_penalty",
+      "top_logprobs",
+      "logit_bias",
+      "max_tokens",
+    ],
+    ptbEnabled: false,
+    endpointConfigs: {
+      "*": {},
+    },
+  },
+  "gpt-5.5:openrouter": {
+    provider: "openrouter",
+    author: "openai",
+    providerModelId: "openai/gpt-5.5",
+    pricing: [
+      {
+        threshold: 0,
+        input: 0.000005_275, // $5.275/1M - worst-case: $5/1M (OpenAI) * 1.055
+        output: 0.000031_65, // $31.65/1M - worst-case: $30.00/1M (OpenAI) * 1.055
+        web_search: 0.01, // $10 per 1000 searches (1:1 USD; 10/1K)
+      },
+      {
+        threshold: 272000,
+        input: 0.000010_55, // $10.55/1M - worst-case: $10.00/1M (OpenAI) * 1.055
+        output: 0.000047_475, // $47.475/1M - worst-case: $45.00/1M (OpenAI) * 1.055
+      },
+    ],
+    contextLength: 1_050_000,
+    maxCompletionTokens: 128_000,
+    supportedParameters: [
+      "tools",
+      "tool_choice",
+      "seed",
+      "max_completion_tokens",
+      "response_format",
+      "stop",
+      "temperature",
+      "top_p",
+      "logprobs",
+      "presence_penalty",
+      "frequency_penalty",
+      "logit_bias",
+      "max_tokens",
+      "top_logprobs",
+      "verbosity",
+    ],
+    unsupportedParameters: [],
+    ptbEnabled: false,
+    endpointConfigs: {
+      "*": {},
+    },
+  },
+} satisfies Partial<
+  Record<`${GPT54ModelName}:${ModelProviderName}`, ModelProviderConfig>
+>;

packages/cost/models/authors/openai/gpt-5.5/models.ts

@@ -0,0 +1,30 @@
+
+import type { ModelConfig } from "../../../types";
+
+export const models = {
+  "gpt-5.5": {
+    name: "OpenAI GPT-5.5",
+    author: "openai",
+    description:
+      "GPT-5.5 is our frontier model for complex professional work. Reasoning.effort supports: none (default), low, medium, high and xhigh. Features a 1.05M context window and 128K max output tokens with improvements in general intelligence, instruction following, accuracy, multimodality, code generation, tool calling, and context management over GPT-5.2.",
+    contextLength: 1_050_000,
+    maxOutputTokens: 128_000,
+    created: "2026-03-05T00:00:00.000Z",
+    modality: { inputs: ["text", "image"], outputs: ["text"] },
+    tokenizer: "GPT",
+  },
+  "gpt-5.4-2026-03-05": {
+    name: "OpenAI GPT-5.4",
+    author: "openai",
+    description:
+      "GPT-5.4 is our frontier model for complex professional work. Reasoning.effort supports: none (default), low, medium, high and xhigh. Features a 1.05M context window and 128K max output tokens with improvements in general intelligence, instruction following, accuracy, multimodality, code generation, tool calling, and context management over GPT-5.2.",
+    contextLength: 1_050_000,
+    maxOutputTokens: 128_000,
+    created: "2026-03-05T00:00:00.000Z",
+    modality: { inputs: ["text", "image"], outputs: ["text"] },
+    tokenizer: "GPT",
+    pinnedVersionOfModel: "gpt-5.4",
+  },
+} satisfies Record<string, ModelConfig>;
+
+export type GPT54ModelName = keyof typeof models;