LLM ReferenceLLM Reference

Marin 70B Base

marin-70b-base

Researched 137d ago

Last refreshed 2026-04-18. Next refresh: weekly.

Open SourceLong context

Marin 70B Base has model metadata, but missing tracked provider pricing keeps it from being a default production pick.

Decision context: Long context task fit, 0 tracked provider routes, and research from 2026-01-01.

Use it for

  • Teams evaluating long context
  • Workloads that can use a 131K context window

Do not use it for

  • Cost-sensitive launches that need sourced token pricing
  • Vision or document-understanding workloads
  • Strict JSON or tool-calling flows

Cheapest output

-

No tracked output price

Provider routes

0

No provider route in seed

Quality / dollar

Unknown

No task benchmark coverage yet

Freshness

2026-01-01

Researched 137d ago

stale

Top use-case fit

Long context

Included by capability and metadata signals in the decision map.

Provider price ladder

No tracked provider token pricing is available for this model yet.

Benchmark peer barsfor Long context

No task-mapped benchmark peers are available for this model yet.

Migration checks

No linked migration route is available for this model yet.

About

Large base model fine-tuned from Llama 3.1 70B for mechanistic interpretability research and safety evaluation. Supports long-context analysis.

Marin 70B Base has a 128K-token context window.

Capabilities

No model capability flags are currently sourced.

Rankings

Specifications

FamilyMarin
Released2025-03-05
Parameters70B
Context131K

Created by

Marin is an open-source initiative by the Marin Community in close collaboration with Stanford Unive

Stanford, California, United States
Founded 2024
Website