Changelog
Latest release updates from the Langfuse team. Check out our Roadmap to see what's next.
All posts
Complex filters
Use the new filter builder to filter across all sorts of attributes. State is persisted in the URL, so you can share your filters with others.
October 3, 2023
New JSON viewer
Inputs and outputs of spans and generations can be complex, now it is much easier to read them. Click to copy any value.
September 27, 2023
Datasets (beta)
Collect sets of inputs and expected outputs in Langfuse to evaluate your LLM app. Use evaluations to benchmark different experiments.
September 25, 2023
Export generations (for fine-tuning)
Filter generations and export them as CSV, JSON, or OpenAI-JSONL
September 18, 2023
Model-based evaluation
Run model-based evaluations on your production data in Langfuse using the Python SDK.
September 15, 2023
Share traces via public link
You can now make your traces public to discuss them with your team or share them more publicly.
September 14, 2023
Public access to analytics alpha
All users on cloud.langfuse.com have access to analytics dashboards. More analytics to come soon in core Langfuse project.
September 12, 2023
Usage in USD
In addition to token counts, usage can now be displayed in USD. Available for many popular models.
September 1, 2023
Track version and releases
Compare metrics across releases of your application or version of your chain/prompt. Releases are automatically tracked for major hosting providers.
August 31, 2023
Langchain integration (Javascript)
Now the Langchain integration is also available for Javascript.
August 30, 2023
🐳 Prebuilt Docker images
Self-hosting is now easier than ever with our prebuilt Docker images.
August 16, 2023
Public access to Q&A chatbot project
We've built the Q&A chatbot for the Langfuse docs, now everyone can access its production traces. Create an account on Langfuse Cloud and play with the Q&A chatbot to see your own traces.
August 14, 2023
GET API for usage tracking
Get usage data from Langfuse API for use in your own application and dashboards. Optionally broken down by user or use case.
August 7, 2023
Add manual scores
Do 'human-in-the-loop' evaluation by adding manual scores right in the Langfuse UI.
July 31, 2023
Langchain integration (Python)
LLM applications/chains/agents running on Langchain can now be traces via the native integration.
July 27, 2023
User management
Share projects with coworkers and manage permissions.
July 27, 2023
Nested traces
New user interface to browse complex traces in a nested way.
July 24, 2023
Analytics Alpha
For early-users on Langfuse Cloud, we are releasing an alpha version of our analytics dashboards.
July 20, 2023
Tokenization for exact token counts
For OpenAI and Anthropic models token counts are now automatically calculated. This is helpful for streaming endpoints that do not return usage data.
July 20, 2023
Launch
After working on the initial version for 2 months, we are excited to launch Langfuse today!
July 19, 2023