Lfm 40B API Pricing
As of October 10, 2026, Lfm 40B costs $0.10 per 1M input tokens and $0.20 per 1M output tokens on Lambda. It has a 131,072-token context window and returns up to 131,072 tokens per response.
- Input
- $0.10 / 1M tokens
- Output
- $0.20 / 1M tokens
- Context window
- 131,072 tokens
- Max output
- 131,072 tokens
- Providers
- 1
- Added to LiteLLM
- July 2025
Lfm 40B pricing by provider
1 listing across 1 provider. Token prices are in US dollars per 1M tokens. The highlighted row is the price quoted above.
| Provider | Model name in LiteLLM | Input | Output | Context |
|---|---|---|---|---|
| Lambda | lambda_ai/lfm-40b | $0.10 | $0.20 | 128K |
What Lfm 40B costs in practice
1,000 requests with 2,000 input and 500 output tokens each
| Lambda | $0.30 |
100 long-document requests with 100,000 input and 2,000 output tokens each
| Lambda | $1.04 |
Lfm 40B features
- Function calling
- Parallel tool calls
Use Lfm 40B with LiteLLM
Call Lfm 40B through the LiteLLM Python SDK, or put it behind the LiteLLM proxy and send OpenAI-format requests to /v1/chat/completions. LiteLLM tracks the cost of every request at these prices.
from litellm import completion
response = completion(
model="lambda_ai/lfm-40b",
messages=[{"role": "user", "content": "Hello!"}],
)model_list:
- model_name: lfm-40b
litellm_params:
model: lambda_ai/lfm-40b
# credentials: see the provider's LiteLLM docs pagecurl http://0.0.0.0:4000/v1/chat/completions \
-H "Content-Type: application/json" \
-H "Authorization: Bearer sk-1234" \
-d '{
"model": "lfm-40b",
"messages": [{"role": "user", "content": "Hello!"}]
}'Lfm 40B FAQ
How much does Lfm 40B cost?
Lfm 40B costs $0.10 per 1M input tokens and $0.20 per 1M output tokens on Lambda.
What is the context window of Lfm 40B?
Lfm 40B has a 131,072-token context window and returns up to 131,072 tokens per response.
Which providers offer Lfm 40B?
Lfm 40B is available from Lambda through LiteLLM, using the model name lambda_ai/lfm-40b.
How do I call Lfm 40B with an OpenAI-compatible API?
Use the LiteLLM Python SDK with model="lambda_ai/lfm-40b", or add the model to the LiteLLM proxy's config.yaml and send requests to /v1/chat/completions from any OpenAI client. LiteLLM tracks the cost of every request at the prices on this page.
What features does Lfm 40B support?
Lfm 40B supports function calling and parallel tool calls.
When did LiteLLM add Lfm 40B?
Lfm 40B was added to LiteLLM's model price file in July 2025.
Sources
Prices come from LiteLLM's open-source model_prices_and_context_window.json, which LiteLLM uses to calculate the cost of every request.
LiteLLM docs: Lambda.
Provider pages: Lambda.
