feat: update Volcengine with Doubao Seed 2.0 and 1.8 models (#4)

- Add Doubao Seed 2.0 Pro (frontier, 256K context, 128K output)
- Add Doubao Seed 2.0 Code
- Add Doubao Seed 1.8 (multimodal agent model with vision)
- Add Doubao Seed 1.6 Vision
- Update existing 2.0 Lite/Mini with correct specs (256K/128K, vision)
- Update global alias "doubao" to point to 2.0 Pro

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

aliases.toml

@@ -77,6 +77,8 @@
 "minimax-highspeed" = "MiniMax-M2.5-highspeed"
 "minimax-m2.1" = "MiniMax-M2.1"
 "codegeex" = "codegeex-4"
+"doubao" = "doubao-seed-2-0-pro-260215"
+"doubao-seed" = "doubao-seed-2-0-pro-260215"
 "stepfun" = "step-3.5-flash"
 "baichuan" = "Baichuan4"
 "baichuan-4" = "Baichuan4"

providers/volcengine.toml

@@ -1,5 +1,5 @@
 # Volcano Engine / Doubao — https://volcengine.com
-# Models: 4
+# Models: 7
 
 [provider]
 id = "volcengine"
@@ -8,6 +8,71 @@ api_key_env = "VOLCENGINE_API_KEY"
 base_url = "https://ark.cn-beijing.volces.com/api/v3"
 key_required = true
 
+[[models]]
+id = "doubao-seed-2-0-pro-260215"
+display_name = "Doubao Seed 2.0 Pro"
+tier = "frontier"
+context_window = 262144
+max_output_tokens = 131072
+input_cost_per_m = 0.47
+output_cost_per_m = 2.37
+supports_tools = true
+supports_vision = true
+supports_streaming = true
+aliases = ["doubao-pro", "doubao-seed-pro", "doubao-2-pro"]
+
+[[models]]
+id = "doubao-seed-2-0-lite-260215"
+display_name = "Doubao Seed 2.0 Lite"
+tier = "smart"
+context_window = 262144
+max_output_tokens = 131072
+input_cost_per_m = 0.09
+output_cost_per_m = 0.53
+supports_tools = true
+supports_vision = true
+supports_streaming = true
+aliases = ["doubao-lite", "doubao-seed-lite", "doubao-2-lite"]
+
+[[models]]
+id = "doubao-seed-2-0-mini-260215"
+display_name = "Doubao Seed 2.0 Mini"
+tier = "fast"
+context_window = 262144
+max_output_tokens = 131072
+input_cost_per_m = 0.03
+output_cost_per_m = 0.31
+supports_tools = true
+supports_vision = true
+supports_streaming = true
+aliases = ["doubao-mini", "doubao-seed-mini", "doubao-2-mini"]
+
+[[models]]
+id = "doubao-seed-2-0-code"
+display_name = "Doubao Seed 2.0 Code"
+tier = "smart"
+context_window = 262144
+max_output_tokens = 131072
+input_cost_per_m = 0.47
+output_cost_per_m = 2.37
+supports_tools = true
+supports_vision = false
+supports_streaming = true
+aliases = ["doubao-code", "doubao-seed-code"]
+
+[[models]]
+id = "doubao-seed-1-8"
+display_name = "Doubao Seed 1.8"
+tier = "smart"
+context_window = 262144
+max_output_tokens = 16384
+input_cost_per_m = 0.80
+output_cost_per_m = 2.00
+supports_tools = true
+supports_vision = true
+supports_streaming = true
+aliases = ["doubao-1.8", "doubao-seed-1.8"]
+
 [[models]]
 id = "doubao-seed-1-6-251015"
 display_name = "Doubao Seed 1.6 Pro"
@@ -19,43 +84,17 @@ output_cost_per_m = 2.00
 supports_tools = true
 supports_vision = false
 supports_streaming = true
-aliases = ["doubao", "doubao-pro"]
+aliases = ["doubao", "doubao-1.6"]
 
 [[models]]
-id = "doubao-seed-2-0-lite"
-display_name = "Doubao Seed 2.0 Lite"
-tier = "balanced"
-context_window = 131072
-max_output_tokens = 16384
-input_cost_per_m = 0.30
-output_cost_per_m = 0.60
-supports_tools = true
-supports_vision = false
-supports_streaming = true
-aliases = ["doubao-lite"]
-
-[[models]]
-id = "doubao-seed-2-0-mini"
-display_name = "Doubao Seed 2.0 Mini"
-tier = "fast"
-context_window = 131072
-max_output_tokens = 16384
-input_cost_per_m = 0.10
-output_cost_per_m = 0.10
-supports_tools = true
-supports_vision = false
-supports_streaming = true
-aliases = ["doubao-mini"]
-
-[[models]]
-id = "doubao-seed-code"
-display_name = "Doubao Seed Code"
+id = "doubao-seed-1-6-vision-251015"
+display_name = "Doubao Seed 1.6 Vision"
 tier = "smart"
-context_window = 131072
+context_window = 262144
 max_output_tokens = 16384
-input_cost_per_m = 0.50
-output_cost_per_m = 1.00
+input_cost_per_m = 0.80
+output_cost_per_m = 2.00
 supports_tools = true
-supports_vision = false
+supports_vision = true
 supports_streaming = true
-aliases = ["doubao-code"]
+aliases = ["doubao-vision"]