# OLMo-2-1124-13B [Canonical model page](https://headlessthrones.com/models/allen-institute-for-ai-olmo-2-1124-13b) · [Model library](https://headlessthrones.com/models) Public catalog reference from Headless Thrones. Exact catalog ID: `allen-institute-for-ai-olmo-2-1124-13b`. Catalog source-check date: 2026-10-23. This brief contains the public catalog answers and any catalog guide, not private drafts, historical editorial revisions or independently measured rankings. The canonical HTML page may also display separately published editorial. Current catalog answers ## What to know about OLMo-2-1124-13B AI-compiled from linked model documentation. This is a catalog reference, not an independent performance review. Catalog checked October 23, 2026. [Exact model](https://headlessthrones.com/models/allen-institute-for-ai-olmo-2-1124-13b#model-answer-identity) · [Access](https://headlessthrones.com/models/allen-institute-for-ai-olmo-2-1124-13b#model-answer-access) · [Token limits](https://headlessthrones.com/models/allen-institute-for-ai-olmo-2-1124-13b#model-answer-context) · [Dates & knowledge](https://headlessthrones.com/models/allen-institute-for-ai-olmo-2-1124-13b#model-answer-dates) · [License](https://headlessthrones.com/models/allen-institute-for-ai-olmo-2-1124-13b#model-answer-license) · [Model details](https://headlessthrones.com/models/allen-institute-for-ai-olmo-2-1124-13b#model-answer-research) · [Weight details](https://headlessthrones.com/models/allen-institute-for-ai-olmo-2-1124-13b#model-answer-repository) ### Which OLMo-2-1124-13B does this page describe? OLMo-2-1124-13B is a model record from **Allen Institute for AI** in the OLMo family. [Source](https://huggingface.co/allenai/OLMo-2-1124-13B) A separate version identifier is not documented in this record; the model name alone does not establish which snapshot a service runs. ### How can you access OLMo-2-1124-13B? The catalog documents **Open weights** access for OLMo-2-1124-13B. [Source](https://huggingface.co/allenai/OLMo-2-1124-13B) As of the catalog check, this version was listed without confirmed general availability. [Source](https://huggingface.co/allenai/OLMo-2-1124-13B) Open weights means the model weights are distributed for use under their stated terms. It does not establish a hosted API, an open-source license, or a hardware requirement. ### What are OLMo-2-1124-13B's context and output limits? The documented **context window is 4,096 tokens**. [Source](https://huggingface.co/allenai/OLMo-2-1124-13B/resolve/3fefddc1bf18a30e1d9b91000271630718f2aa8b/README.md) A separate maximum-output value is not established in this record. The context or input figure should not be used as an output allowance. Context, input and output limits describe different constraints. Do not add the figures together to infer a larger window. Check the endpoint's accounting for conversation history, system instructions, tools, media and generated tokens; a documented maximum is not a guarantee of answer quality or a measured usable capacity. ### What dates are documented for OLMo-2-1124-13B? **Training-data cutoff: December 2023.** [Source](https://huggingface.co/allenai/OLMo-2-1124-13B/resolve/3fefddc1bf18a30e1d9b91000271630718f2aa8b/README.md) This describes the reported data boundary, not the day training finished. The source labels this “- Date cutoff: Dec. 2023..” Retrieval or web tools can supply newer information at run time. That does not change the model's recorded training or knowledge dates, and this record does not establish that a particular endpoint includes those tools. ### What license is recorded for OLMo-2-1124-13B? The recorded license label is **apache-2.0**. [Source](https://huggingface.co/allenai/OLMo-2-1124-13B) Read the linked license and associated use terms for this exact version before redistribution, commercial deployment or fine-tuning. A label alone does not establish every permission, restriction or obligation, and it does not determine the terms of a separate hosted service. ### What distinguishes OLMo-2-1124-13B? These details come from the linked publisher material for this model. Reported capabilities and training descriptions are publisher statements, not independent test results. **Exact checkpoint training and architecture**: Training: 5 Trillion tokens. Architecture: 40 layers, 5120 hidden size and 40 attention heads; 4096-token context. [Source](https://huggingface.co/allenai/OLMo-2-1124-13B/resolve/3fefddc1bf18a30e1d9b91000271630718f2aa8b/README.md) **Language and architecture**: English autoregressive Transformer language model. [Source](https://huggingface.co/allenai/OLMo-2-1124-13B/resolve/3fefddc1bf18a30e1d9b91000271630718f2aa8b/README.md) ### What is documented about the OLMo-2-1124-13B checkpoint? This evidence refers to `allenai/OLMo-2-1124-13B` at recorded revision `3fefddc1bf18a30e1d9b91000271630718f2aa8b`, checked October 23, 2026. [Repository metadata](https://huggingface.co/api/models/allenai/OLMo-2-1124-13B) Safetensors metadata records **13,716,198,400 stored parameters**. This is a stored-weight count, not necessarily the number activated per token, a download size or a GPU-memory requirement. [Repository metadata](https://huggingface.co/api/models/allenai/OLMo-2-1124-13B) Recorded architecture class: `Olmo2ForCausalLM`. [Repository metadata](https://huggingface.co/api/models/allenai/OLMo-2-1124-13B) Repository language labels: en. These labels are not independent evaluations of language quality. [Repository metadata](https://huggingface.co/api/models/allenai/OLMo-2-1124-13B) Repository access gate: `false`. This records the repository's gate setting when checked; licensing and use terms still apply. [Repository metadata](https://huggingface.co/api/models/allenai/OLMo-2-1124-13B) #### What the configuration file says The pinned `config.json` contains these values. [Pinned configuration](https://huggingface.co/allenai/OLMo-2-1124-13B/resolve/3fefddc1bf18a30e1d9b91000271630718f2aa8b/config.json) `max_position_embeddings`: 4,096 `torch_dtype`: float32 `num_attention_heads`: 40 `num_key_value_heads`: 40 `num_hidden_layers`: 40 `hidden_size`: 5,120 Configuration values describe the checkpoint and its implementation. In particular, max\_position\_embeddings, sliding\_window and rope\_scaling do not independently establish an API context limit, tested usable length or hardware requirement. Runtime, quantization, cache, batch size and input length affect deployment behavior. Read the retrieved model card for setup and qualifications. [Model card](https://huggingface.co/allenai/OLMo-2-1124-13B/resolve/3fefddc1bf18a30e1d9b91000271630718f2aa8b/README.md) **Catalog qualifications:** Official publisher model repository; listed status confirms a catalog entry, not a verified hosted API service. [Source 1](https://huggingface.co/api/models/allenai/OLMo-2-1124-13B) · [Source 2](https://huggingface.co/allenai/OLMo-2-1124-13B/resolve/3fefddc1bf18a30e1d9b91000271630718f2aa8b/README.md) · [Source 3](https://huggingface.co/allenai/OLMo-2-1124-13B/resolve/3fefddc1bf18a30e1d9b91000271630718f2aa8b/config.json) **Evidence still missing here:** tested hardware requirements. Missing documentation is not evidence that a feature is unavailable. Headless Thrones has not independently benchmarked this model for this reference. Evaluate it on representative work before choosing it; these facts do not rank its accuracy, reliability, speed or suitability against another model. Keep the exact version in view ## Other OLMo models from Allen Institute for AI. These are separate records in the same publisher family. A shared family name does not establish equal capabilities or interchangeable licenses. ### [Molmo-72B-0924](https://headlessthrones.com/models/allen-institute-for-ai-molmo-72b-0924) Open weights ### [Molmo-7B-D-0924](https://headlessthrones.com/models/allen-institute-for-ai-molmo-7b-d-0924) Open weights ### [Molmo-7B-O-0924](https://headlessthrones.com/models/allen-institute-for-ai-molmo-7b-o-0924) Open weights ### [Molmo2-4B](https://headlessthrones.com/models/allen-institute-for-ai-molmo2-4b) Open weights ### [Molmo2-8B](https://headlessthrones.com/models/allen-institute-for-ai-molmo2-8b) Open weights ### [Molmo2-ER](https://headlessthrones.com/models/allen-institute-for-ai-molmo2-er) Open weights