Lambda Chat#
Lambda Chat provides a clean, powerful chat interface that lets you interact with the models hosted by the Lambda Inference API directly from your browser.
Details#
Tier comparison#
Lambda offers three different tiers of service:
- The public tier, which offers basic chat.
- Lambda Chat Free, a logged-in tier that offers limited access to a set of standard chat features.
- Lambda Chat Pro, a paid subscription tier that provides full access to all available features.
The following table compares the features provided in each of the three tiers:
Public |
Lambda Chat Free |
Lambda Chat Pro |
|
|---|---|---|---|
| Basic chat | ✓ | ✓ | ✓ |
| Conversation history | ✓ | ✓ | |
| Unlimited chats | ✓ | ||
| Access to all models | ✓ | ✓ | |
| Basic tools (web search, PDF/image upload) | ✓ | ✓ | |
| Advanced tools | ✓ |
Model comparison#
The following table outlines and compares the models currently available in Lambda Chat. Click one or more tags to filter the table.
- Models tagged Free are available in all Lambda Chat plans. Models tagged Pro are available only for Lambda Chat Pro users.
- Models tagged Sandbox are subject to be removed and replaced with newer models as they become available. Models tagged Core will remain available.
| Model | Type | Inputs | Outputs | Tools |
|---|---|---|---|---|
|
DeepSeek R1 Distill Llama 3.3 70B
Reasoning distilled model
|
Dense Reasoning | Text | Text | Search |
|
DeepSeek R1 671B
Matches o1 reasoning
|
MoE Reasoning | Text | Text | Search |
|
Apriel 5B Instruct
Efficient lightweight model
|
Dense | Text | Text | Search |
|
Hermes 3 Llama 3.1 405B FP8
Creative role play specialist
|
MoE | Text | Text | Search |
|
Llama 3.1 Nemotron 70B Instruct
Instruction following expert
|
Dense | Text | Text | Search |
|
Liquid AI 40B
Efficient performance balance
|
Dense | Text | Text | Search |
|
Llama 3.3 70B
Multilingual chat expert
|
Dense | Text | Text | Search |
|
Qwen 2.5 Coder 32B Instruct
Math & coding focused
|
Dense | Text | Text | Search |
|
Qwen 3 32B FP8
Hybrid reasoning model
|
Dense Reasoning | Text | Text | Search |
|
DeepSeek V3-0324*
Fast coding specialist
|
MoE | Text | Text | Search |
|
DeepSeek R1 0528*
Matches o3 reasoning
|
MoE Reasoning | Text | Text | Search |
|
Llama 4 Maverick 17B*
Multimodal powerhouse
|
MoE | Text Images | Text | Search Doc parsing Image parsing |
|
Llama 4 Scout 17B*
Long context specialist
|
MoE | Text Images | Text | Search Doc parsing Image parsing |
Tip
You can use the Lambda Inference API to programmatically retrieve a list of currently available models. For more information, see Lambda Inference API > Listing models.
Data privacy#
Lambda uses TLS to secure data transfer between the Lambda Chat web application and the backend services it relies on. Your data is encrypted at rest.
Lambda Chat Pro#
Your conversations and conversation-related data remain private to you. We do not use this data for training or any other purposes, nor will we share this data with any third party unless required by law. Your general activity in Lambda Chat, such as number of chats started, number and size of messages sent per chat, and which UI elements you clicked on, may be tracked for analytics purposes.
Lambda Chat Free and public Lambda Chat#
Your conversations and conversation-related data may be used in aggregated, anonymized form for a limited set of business purposes, such as product analytics and research. Uploaded data or data provided through an integration with a third party service will not be used. Your general activity in Lambda Chat, such as number of chats started, number and size of messages sent per chat, and which UI elements you clicked on, may be tracked for analytics purposes.
Subscribing to Lambda Chat Pro#
To subscribe to Lambda Chat Pro:
- Navigate to Lambda Chat and log in.
- Click your profile icon in the top-right corner, and then select Settings. The Settings modal opens.
- In the Settings nav, click Subscription.
- In the Pro section, click Upgrade to Pro. You're taken to a subscription page.
- Enter your billing and payment details, and then click Pay $10.00 & subscribe to start your subscription.
Cancelling your subscription#
To cancel your Lambda Chat subscription:
- Navigate to Lambda Chat and log in.
- Click your profile icon in the top-right corner, and then select Settings. The Settings modal opens.
- In the Settings nav, click Subscription.
- In the Free section, click Switch to Free. The Manage subscription modal opens.
- Click Lambda Chat Pro.
- On the Subscription Details page, click Cancel Subscription.
- Optionally, provide a reason for cancelling.
- Click Confirm Cancellation to finish cancelling your subscription.
Note
When you return to the Subscription page in Settings, you might need to click Refresh subscription to see your updated subscription status.
Next steps#
Interested in integrating Lambda's hosted models directly into your own workflows? Check out the Lambda Inference API.