LLM Reference

Orca Models by Microsoft Research

Microsoft ResearchUnknown / UnverifiedOpen Source
1 model2023Up to 2k ctx

Last refreshed 2026-09-02. Next refresh: weekly.

Details

LicenseUnknown / Unverified
Commercial useCommercial use: unknown
Models1
Released2023
Max context2k

About

The Orca family of large language models (LLMs), developed by Microsoft, emphasizes enhancing reasoning capabilities in smaller models. The original Orca model showcased impressive reasoning by emulating the step-by-step processes of more advanced LLMs 2. Orca 2, the latest version, builds upon this foundation, outperforming similar-sized models and rivaling the performance of much larger models on complex reasoning tasks 23. Both models are available for research, with Orca 2 particularly noted for its diverse reasoning techniques and adaptability to different tasks, demonstrating the potential of strategic training to enhance the capabilities of smaller LLMs 2.

Decision facts

Best fit
math-heavy prompts
Capability starting point
Orca 13B with 2k context
Lowest tracked input
Not tracked
Closest related family
Harrier

Current Variants

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

1 in view
Orca 13BCurrent

Use when the workload needs 2k context and 13B parameters.

2023-062k context13B parameters

Release Timeline

1 release group
2023-06
1 current
Orca 13B
2k context13B parameters
Current

Specifications(1 models)

Orca model specifications comparison
ModelReleasedContextParameters
Orca 13B2023-062k13B