LLM Reference

Athene Models by Nexusflow

NexusflowLlama 3 CommunityOpen weights
1 model2024Up to 4k ctx

Last refreshed 2026-05-19. Next refresh: weekly.

Details

ResearcherNexusflow
Commercial useCommercial use: conditional
Models1
Released2024
Max context4k

About

The Athene family of LLMs originates from Nexusflow, a company that excels in post-training optimization of large language models. Its flagship model, Athene-Llama3-70B (commonly known as Athene-70B), is an open-weights model fine-tuned from Meta AI's Llama-3-70B-Instruct through reinforcement learning from human feedback (RLHF) 5. This meticulous post-training approach has notably enhanced its capabilities, leading to an impressive 77.8% score on Arena-Hard-Auto, a benchmark that strongly aligns with human evaluation on Chatbot Arena 5. As a result, Athene-70B is among the top-performing open-source models, on par with leading proprietary models 5. Nexusflow's post-training efforts mainly targeted improving the model’s instruction following, reasoning, coding, creative writing, and multilingual abilities 5. Additionally, the Athene series includes smaller models and others hinted at as Athene v2, v3, and v4 in different references 3811, though these are less detailed in the provided information.

Decision facts

Best fit
codingchatbot and role-playing use cases
Capability starting point
Athene 70B with 4k context
Lowest tracked input
Not tracked
Closest related family
Starling

Current Variants

Use-when guidance is based on each model's tracked capabilities, context window, release date, and replacement status.

1 in view
Athene 70BCurrent

Use when the workload needs 4k context and 70B parameters.

2024-074k context70B parameters

Release Timeline

1 release group
2024-07
1 current
Athene 70B
4k context70B parameters
Current

Specifications(1 models)

Athene model specifications comparison
ModelReleasedContextParameters
Athene 70B2024-074k70B