feat: add google-vertex-openai provider for Vertex AI partner models

providers/google-vertex-openai/models/deepseek-v3.1-maas.toml

@@ -0,0 +1,22 @@
+name = "DeepSeek V3.1"
+family = "deepseek"
+release_date = "2025-06-01"
+last_updated = "2025-06-01"
+attachment = false
+reasoning = true
+temperature = true
+tool_call = true
+knowledge = "2025-05"
+open_weights = true
+
+[cost]
+input = 0.27
+output = 1.10
+
+[limit]
+context = 131072
+output = 32768
+
+[modalities]
+input = ["text"]
+output = ["text"]

providers/google-vertex-openai/models/llama-3.3-70b-instruct-maas.toml

@@ -0,0 +1,22 @@
+name = "Llama 3.3 70B Instruct"
+family = "llama"
+release_date = "2024-12-06"
+last_updated = "2024-12-06"
+attachment = false
+reasoning = true
+temperature = true
+tool_call = true
+knowledge = "2024-12"
+open_weights = true
+
+[cost]
+input = 0.20
+output = 0.20
+
+[limit]
+context = 131072
+output = 32768
+
+[modalities]
+input = ["text"]
+output = ["text"]

providers/google-vertex-openai/models/llama-4-maverick-17b-128e-instruct-maas.toml

@@ -0,0 +1,22 @@
+name = "Llama 4 Maverick 17B-128E"
+family = "llama"
+release_date = "2025-04-05"
+last_updated = "2025-04-05"
+attachment = true
+reasoning = true
+temperature = true
+tool_call = true
+knowledge = "2025-03"
+open_weights = true
+
+[cost]
+input = 0.18
+output = 0.59
+
+[limit]
+context = 1048576
+output = 131072
+
+[modalities]
+input = ["text", "image"]
+output = ["text"]

providers/google-vertex-openai/models/qwen3-235b-a22b-instruct-2507-maas.toml

@@ -0,0 +1,22 @@
+name = "Qwen3 235B Instruct"
+family = "qwen"
+release_date = "2025-07-25"
+last_updated = "2025-07-25"
+attachment = false
+reasoning = true
+temperature = true
+tool_call = true
+knowledge = "2025-06"
+open_weights = true
+
+[cost]
+input = 0.30
+output = 1.20
+
+[limit]
+context = 131072
+output = 32768
+
+[modalities]
+input = ["text"]
+output = ["text"]

providers/google-vertex-openai/provider.toml

@@ -0,0 +1,4 @@
+name = "Vertex (OpenAI-Compatible)"
+env = ["GOOGLE_CLOUD_PROJECT", "GOOGLE_VERTEX_PROJECT", "GCP_PROJECT", "GCLOUD_PROJECT", "GOOGLE_CLOUD_LOCATION", "VERTEX_LOCATION", "GOOGLE_APPLICATION_CREDENTIALS"]
+npm = "@ai-sdk/openai-compatible"
+doc = "https://cloud.google.com/vertex-ai/generative-ai/docs/maas/call-open-model-apis"