losclouds
Model · Meta AI

Llama 3.1 405B

Flagship open Llama — 405B parameters, comparable to GPT-4 on many tasks.

Pricing

Model Overview

Tracked token-pricing fields for this model family. Empty pricing fields stay hidden until the source publishes them.

Model pricing
Price fieldValue
Input$3.50 / 1M tokens
Output$3.50 / 1M tokens
SourceLlama 3.1 405B pricing
VerifiedApr 5, 2026 (High)

Surface

Capabilities

Input and output modalities, enabled feature flags, strengths, and tradeoffs.

Model capabilities
AttributeValues
Modalities
text
to
text
Capabilities
batchSupportpromptCachingfunctionCallingstructuredOutputs
StrengthsLargest open-weight model, GPT-4-class quality
TradeoffsNeeds multi-GPU, expensive to host

References

Official Links

Canonical launch, documentation, pricing, and release-note URLs.

Official model links
ReferenceURL
Introhttps://ai.meta.com/blog/meta-llama-3-1/
Docshttps://llama.meta.com/docs/
Pricinghttps://llama.meta.com/docs/get-started/
Release notehttps://llama.meta.com/blog/

Coverage

Benchmark Coverage

Reported benchmark families, versions, scores, sources, and notes.

Benchmark coverage
BenchmarkVersionScoreDateSourceNotes
MMLU202487.3 %Jul 1, 2024MetaVendor-reported
HumanEval202489 %Jul 1, 2024MetaVendor-reported

Lifecycle

Release History

Lifecycle transitions and release timeline for this model family.

Release history
ReleaseAliasLifecycleRelease DateDeprecationShutdownSummary
Llama 3.1 405Bllama-3-1-405bActiveJul 23, 2024——Current published model family snapshot.

Surfaces

Host Coverage

Provider-specific hosting, context, pricing notes, feature differences, and provider-status context.

Host coverage
HostTypeContextPricing NoteDifferences
Together AIcloud128.0K$3.50/$3.50 per MTok.—
DeepInfracloud128.0K$1.79/$1.79 per MTok.—

Migration

Migration Guidance

Documented migration summary, successor families, and known breaking changes.

Migration guidance
TopicDetails
SummaryUse Llama 4 Maverick for better quality with cheaper MoE hosting.
Replacement modelsllama-4-maverick

Timeline

Change Events

Cataloged model-family updates and source references.

Change events
DateTypeTitleDescriptionSource
Jul 23, 2024family_addedLlama 3.1 405B publishedInitial public model family launch.Llama 3.1 405B release notes

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