DeepSeek v4-pro reasoning model rejects tool_choice parameter. All 4 endpoints now use system prompts with JSON schema instructions and parse content as JSON instead of tool_calls. Co-Authored-By: Claude <noreply@anthropic.com>
DeepSeek v4-pro reasoning model rejects tool_choice parameter. All 4 endpoints now use system prompts with JSON schema instructions and parse content as JSON instead of tool_calls. Co-Authored-By: Claude <noreply@anthropic.com>