EasyInputMessagePhaseUnion Type | OpenRouter Go SDK | OpenRouter

The Go SDK and docs are currently in beta. Report issues on GitHub.

The phase of an assistant message. Use commentary for an intermediate assistant message and final_answer for the final assistant message. For follow-up requests with models like gpt-5.3-codex and later, preserve and resend phase on all assistant messages. Omitting it can degrade performance. Not used for user messages.

Supported Types

EasyInputMessagePhaseCommentary

1 easyInputMessagePhaseUnion := components.CreateEasyInputMessagePhaseUnionEasyInputMessagePhaseCommentary(components.EasyInputMessagePhaseCommentary{/* values here */})

EasyInputMessagePhaseFinalAnswer

1 easyInputMessagePhaseUnion := components.CreateEasyInputMessagePhaseUnionEasyInputMessagePhaseFinalAnswer(components.EasyInputMessagePhaseFinalAnswer{/* values here */})

1 easyInputMessagePhaseUnion := components.CreateEasyInputMessagePhaseUnionAny(any{/* values here */})

Union Discrimination

Use the Type field to determine which variant is active, then access the corresponding field:

1 switch easyInputMessagePhaseUnion.Type {
2 	case components.EasyInputMessagePhaseUnionTypeEasyInputMessagePhaseCommentary:
3 		// easyInputMessagePhaseUnion.EasyInputMessagePhaseCommentary is populated
4 	case components.EasyInputMessagePhaseUnionTypeEasyInputMessagePhaseFinalAnswer:
5 		// easyInputMessagePhaseUnion.EasyInputMessagePhaseFinalAnswer is populated
6 	case components.EasyInputMessagePhaseUnionTypeAny:
7 		// easyInputMessagePhaseUnion.Any is populated
8 }