Orca 2 13B

Name: Orca 2 13B
Author: Microsoft Research

Released

2023-11-21

Last refreshed

2026-10-09

Status

Researched 150d ago

Open weightsCommercial use: non-commercialCodingClassification

Microsoft Research releases · 7 in the last 12 monthsChangelog →

Specifications

Family: Orca 2
Released: 2023-11-21
Context: 4K
Parameters: 13B
Architecture: Decoder Only
Specialization: general
Openness: Open weights
License: Microsoft ResearchCommercial use: non-commercial
Weights: Unknown
Code: Unknown
Training: Fine-tuned

Created by

Microsoft Research

Advancing the state-of-the-art in AI and computing.

Redmond, Washington, United States

Founded 1991

Website

Pricing

Output / 1M

$0.940

Input / 1M

$0.810

Cheapest of 1 route · Microsoft Foundry

Providers(1)

Microsoft Foundry

View 1 provider route

About

Orca 2 13B, developed by Microsoft, is a large language model designed primarily for research purposes. It is a fine-tuned version of the LLaMA-2 base model, focusing on enhanced reasoning capabilities in smaller language models. This is achieved through training on a synthetic dataset specifically created to improve reasoning skills. Orca 2 13B excels in tasks such as reading comprehension, math problem-solving, and text summarization. However, it is not optimized for chat applications and requires fine-tuning for specific tasks.

Providers(1)

Compare API pricing across 1 tracked provider route for input and output tokens, batch, and cached reads when available.

Provider	Input / 1M	Output / 1M	Route
Microsoft Foundry	$0.810	$0.940	Provisioned

Available via routers & gateways(5)

LiteLLM

Gateway

Open-source Python SDK and proxy server that unifies 100+ LLM APIs behind a single OpenAI-compatible interface, with load balancing, cost tracking, and configurable failover.

Free OSSMicrosoft Foundry

Portkey

Gateway

Production AI gateway routing to 1,600+ LLMs with failover, load balancing, semantic caching, and guardrails; Apache 2.0 core is fully self-hostable with the complete feature set.

SubscriptionMicrosoft Foundry

Azure AI Foundry Model Router

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Microsoft Azure AI Foundry's native model router that uses a trained ML model to route each prompt in real time to the optimal Azure-hosted model, with Balanced/Cost/Quality mode selection and automatic failover.

PassthroughMicrosoft Foundry

Helicone

Gateway

Observability-first AI gateway with routing, caching, rate limiting, and request tracing; Apache 2.0 open-source core with a managed hosted tier for logging and analytics.

SubscriptionMicrosoft Foundry

Kong AI Gateway

Gateway

Multi-LLM AI gateway built on Kong Gateway 3.x, adding semantic routing, load balancing, guardrails, and MCP traffic analytics as plugins over Kong's existing API management platform.

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Capabilities

No model capability flags are currently sourced.

Benchmark peer barsfor Coding

HumanEvalRank 96 of 99

Claude Sonnet 4.6

98.0

96.7

Claude Opus 4.6

95.0

Grok-3

94.5

Orca 2 13Bcurrent

35.2

Benchmark scores(2)

Scores are benchmark-specific and are direction-aware: the same numeric gap can mean very different outcomes across suites. Use the leaderboard context and this model's provider route to decide whether the winning margin is meaningful for your workload.