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Llama 4 Maverick

Meta's high-performance open-weight MoE model — 400B parameters of knowledge at ~17B of compute per token.

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About

Llama 4 Maverick is the top tier of Meta's Llama 4 open-weight family: a 400B-total-parameter Mixture-of-Experts model with only 17B active parameters per token and native text+image multimodality.

As of Oct 2026 it remains Meta's newest Llama release (April 2025); Meta's 2026 frontier work has shifted to the proprietary Muse line and the newer open-weight Muse Glimmer (30B, Apache 2.0, Aug 2026). There is no first-party Meta inference API — developers self-host or use third-party providers. Benchmark figures below are April-2025 launch numbers and should be treated as directional today.

Specs

Context window

1,000,000 tokens

Pricing

Undisclosed by Meta (no first-party API); pay-per-token via third-party hosts or self-hosting at infrastructure cost.

Free quota

Weights are free to download from Hugging Face after accepting Meta's Responsible Use Policy.

API access

Self-hosted (vLLM, Ollama, llama.cpp) or third-party inference providers

Weights

Open weights

Released

April 5, 2025

Benchmarks

Meta-reported (April 2025 launch era — directional today):

  • MMLU: 85.5
  • MATH: 84.8
  • HumanEval: 82.3
  • MMMU: 80.5

Provider-reported unless a source says otherwise. Benchmarks are marketing-adjacent by nature — treat them as directional.

Use cases

chatcodevisionreasoning

Trust score — 7/10

/10 trustMetrics-checked

Meta is established and the open weights plus massive community ecosystem (vLLM, Ollama, llama.cpp) make this the most deployable open model in the catalog. Caveats: the benchmark story is 18 months old, there is no first-party API or pricing, the Llama Community License is more restrictive than Apache 2.0, and Meta's frontier attention has moved to the proprietary Muse line.

How the trust score is built

Full methodology →
Adoption · stars/downloads, log-scaled vs peers
7.1/10
Maintenance · recency, releases, issue load
5.0/10
Openness · license + docs
7.2/10
Manual review · sanity read + red-flag check
8.0/10
  • · HF top match: meta-llama/Llama-4-Maverick-17B-128E-Instruct-FP8 (community upload counts as proxy where official repo is gated)
  • · HF downloads 43,853 (peer-normalized)
  • · released 556 days ago
  • · manual review: benchmarks from Apr 2025; restrictive license

Sources