Update readme

readme.md

@@ -1,24 +1,26 @@
 # Sigmund AI
 
-Copyright 2023-2024 Sebastiaan Mathôt
+Copyright 2023-2025 Sebastiaan Mathôt
 
-A Python library and web app for an LLM-based chatbot with many capabilities.
+A Python library and web app for an LLM-based chatbot with two main modes:
+
+- __OpenSesame expert__: answers questions about OpenSesame based on documentation
+- __Research assistant__: a general purpose chatbot with several tools that are mainly useful for research
 
 Features:
 
 - __Privacy__: all messages and uploaded attachments are encrypted so that no-one can listen in on your conversation
-- __Knowledge__: access to documentation
-- __Continuous conversation__: conversations are summarized when they become too long to fit into the prompt
-- __Tool use__:
+- __Knowledge__ (in OpenSesame mode): access to documentation 
+- __Continuous conversation__: conversations are summarized w hen they become too long to fit into the prompt
+- __Tool use__ (in research-assistant mode):
     - __Code execution__: ability to execute Python and R code
     - __Google Scholar search__: ability to search for articles on Google Scholar
     - __Attachments__: ability to read attachments
     - __Download__: ability to download pages and files as attachments
+    - __Image generation__: ability to generate images
 
 Sigmund is not a large language model itself. Rather it uses third-party models. Currently, models from [OpenAI](https://openai.com), [Anthropic](https://www.anthropic.com/), and [Mistral](https://mistral.ai/) are supported. API keys from these respective providers are required.
 
-By default, Sigmund is configured to act as an assistant for OpenSesame, a program for creating psychology/ cognitive-neuroscience experiments. However, the software can easily be reconfigured for a different purpose.
-
 
 ## What can Sigmund do? And how does Sigmund work?
 
@@ -66,4 +68,4 @@ In production, the server is generally not run by directly calling the app. Ther
 
 Sigmund is distributed under the terms of the GNU General Public License 3. The full license should be included in the file `COPYING`, or can be obtained from:
 
-- <http://www.gnu.org/licenses/gpl.txt>
+- <http://www.gnu.org/licenses/gpl.txt>