Developer message
Application-level instructions placed below system policy and above ordinary user content in some model APIs.
What Developer message means
Its exact priority and availability depend on the provider.
Terms this definition uses
Related terms in Models and generation
How a model produces text, what its training and decoding controls change, and what none of them can prove about a source.
Autoregressive model · Transformer · Attention · Self-attention · Parameter · Inference · Pretraining · Fine-tuning · Supervised fine-tuning · Instruction tuning · RLHF · Preference optimization · Knowledge distillation · Quantization · Mixture of experts · Multimodal model · Vision-language model · Small language model · Tokenizer · Temperature · Top-p sampling · Deterministic decoding · System prompt · Tool call · Function calling · Structured output · Constrained decoding · Chain of thought · Reasoning trace · Context caching · Context compaction · Model routing · Model drift · Model version
Questions about Developer message
What is Developer message?
Application-level instructions placed below system policy and above ordinary user content in some model APIs.
Which area of the glossary does Developer message belong to?
Models and generation: How a model produces text, what its training and decoding controls change, and what none of them can prove about a source.
← System prompt · Tool call →
See it in the full glossary · 772 terms across 19 areas.
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