DeepSeek Kotlin SDK/org.oremif.deepseek.models/ChatCompletionDelta

ChatCompletionDelta

@Serializable

class ChatCompletionDelta(val role: String? = null, val content: String? = null, val reasoningContent: String? = null, val toolCalls: List<ToolCallDelta>? = null)

A chat completion delta generated by streamed model responses.

Each streaming chunk's ChatChoiceChunk.delta carries only the fields that changed on this step. Clients reconstruct the full assistant message by concatenating content and reasoningContent across chunks, and by merging toolCalls by ToolCallDelta.index.

Constructors

ChatCompletionDelta

constructor(role: String? = null, content: String? = null, reasoningContent: String? = null, toolCalls: List<ToolCallDelta>? = null)

Properties

val content: String?

Incremental content produced by the model on this step, if any.

reasoningContent

val reasoningContent: String?

For the deepseek-reasoner model: incremental reasoning content produced on this step, if any.

val role: String?

The role of the author of this message. Typically present only on the first chunk of a response.

val toolCalls: List<ToolCallDelta>?

Incremental tool call updates produced on this step, if any.

Functions

open operator override fun equals(other: Any?): Boolean

open override fun hashCode(): Int

open override fun toString(): String