Updated default temperature to 1 for GPT-5

Author: jamesbraza

README.md

@@ -901,7 +901,7 @@ will return much faster than the first query and we'll be certain the authors ma
 | `summary_llm_config`                         | `None`                                 | Optional configuration for `summary_llm`.                                                                                     |
 | `embedding`                                  | `"text-embedding-3-small"`             | Embedding model for embedding text chunks when adding papers.                                                                 |
 | `embedding_config`                           | `None`                                 | Optional configuration for `embedding`.                                                                                       |
-| `temperature`                                | `0.0`                                  | Temperature for LLMs.                                                                                                         |
+| `temperature`                                | `1.0`                                  | Temperature for LLMs.                                                                                                         |
 | `batch_size`                                 | `1`                                    | Batch size for calling LLMs.                                                                                                  |
 | `texts_index_mmr_lambda`                     | `1.0`                                  | Lambda for MMR in text index.                                                                                                 |
 | `verbosity`                                  | `0`                                    | Integer verbosity level for logging (0-3). 3 = all LLM/Embeddings calls logged.                                               |

src/paperqa/settings.py

@@ -736,7 +736,10 @@ class Settings(BaseSettings):
         default=None,
         description="Optional configuration for the embedding model.",
     )
-    temperature: float = Field(default=0.0, description="Temperature for LLMs.")
+    temperature: float = Field(
+        default=1.0,
+        description="Temperature for LLMs, default is 1 for compatibility with OpenAI's GPT-5.",
+    )
     batch_size: int = Field(default=1, description="Batch size for calling LLMs.")
     texts_index_mmr_lambda: float = Field(
         default=1.0, description="Lambda for MMR in text index."