Last refreshed 2026-04-19. Next refresh: weekly.
Why use Llama 3.1-405B on Replicate API?
Replicate API offers Llama 3.1-405B with pay-as-you-go pricing at $3.75/1M input tokens. Replicate is a cloud-based platform that enables users to run machine learning models easily and efficiently.
Compare Llama 3.1-405B across 2 providers to find the best fit for your use caseSetup recipe
Python + curlpip install replicateexport REPLICATE_API_TOKEN=...import replicate
output = replicate.run(
"llama-3-1-405b",
input={"prompt": "Hello"}llama-3-1-405bRequest example
import replicate
# reads REPLICATE_API_TOKEN from env
# llama-3-1-405b format: "owner/model-name" (latest version) or "owner/model-name:version-hash"
output = replicate.run(
"llama-3-1-405b",
input={"prompt": "Hello"}
)
# Output is a list or generator depending on the model
print("".join(output))Gotchas
- Replicate uses "owner/model-name" format (e.g. "meta/meta-llama-3-8b-instruct") for the latest version, or "owner/model-name:version-sha" to pin to a specific version. The REST endpoint splits owner and model-name into the path: /v1/models/{owner}/{model-name}/predictions.
- The examples expect REPLICATE_API_TOKEN; rename it only if your application config maps the new variable.
Compare Llama 3.1-405B Across Providers
| Provider | Input (per 1M) | Output (per 1M) |
|---|---|---|
| GCP Vertex AI | $5.00 | $16.00 |
| Replicate API | $3.75 | $3.75 |
Pricing
| Type | Price (per 1M) |
|---|---|
| Input tokens | $3.75 |
| Output tokens | $3.75 |
Capabilities
About Llama 3.1-405B
Meta's flagship Llama 3.1 model with 405B parameters and 128K context window. Open-weights model with strong reasoning and coding capabilities.
FAQ
What does Llama 3.1-405B cost on Replicate API?
On Replicate API, Llama 3.1-405B costs $3.75 per 1M input tokens and $3.75 per 1M output tokens.
What is the context window for Llama 3.1-405B on Replicate API?
Llama 3.1-405B supports a 128,000 token context window on Replicate API.
How does Replicate API compare to other Llama 3.1-405B providers?
Llama 3.1-405B is available from 2 providers. The cheapest input pricing is $3.75/1M tokens from Replicate API.
Who created Llama 3.1-405B?
Llama 3.1-405B was created by AI at Meta as part of the Llama 3.1 model family.
Is Llama 3.1-405B open source?
Llama 3.1-405B is open source according to the seed data.