INTELLECT-3
VerifiedPrime-intellect's closed LLM handles extended text contexts with precision.
About INTELLECT-3
INTELLECT-3 is built as a proprietary LLM focused on text modality. Its 131072-token context window enables ingestion of lengthy documents while preserving narrative flow. Prime-intellect maintains full control over the weights and training pipeline.
The architecture prioritizes stable performance across extended sequences without requiring users to manage open-source deployment. Typical usage includes research analysis, content synthesis, and enterprise workflows where data confidentiality matters. Organizations select it when closed-source guarantees and large context capacity align with operational needs.
Capabilities
How INTELLECT-3 compares
INTELLECT-3 (striped bar) vs other language models on intelligence, speed and price.
Price
USD per 1M output tokens · Lower is better · INTELLECT-3 ranks #47 of 72
Sources: Artificial Analysis (intelligence, speed) · OpenRouter (price).
Best for
Long-document legal review
The model processes full contracts or case files within its 131072-token context to identify inconsistencies and summarize obligations while following detailed review instructions.
Extended technical tutoring sessions
It maintains coherent multi-turn dialogue on complex subjects such as algorithm design or scientific explanations, adapting responses based on prior exchanges.
Comprehensive research report generation
Using long-context reasoning and document analysis, the model synthesizes information from multiple sources into structured reports that adhere to precise formatting and content guidelines.
Strengths & limitations
Strengths
- +Strong handling of extended inputs
- +Flexible text-based tasks
- +Suitable for detailed reasoning chains
Limitations
- –Text modality only
- –No vision or multimodal capabilities
- –Performance depends on prompt engineering
Cost calculator
Estimate what INTELLECT-3 would cost for your usage.
Based on INTELLECT-3's $0.20/1M input · $1.10/1M output. Estimate only — actual cost varies by provider and caching.
Quick start
OpenRouter's API is OpenAI-compatible — most SDKs work by just swapping the base URL. Only the model slug changes between models.
import OpenAI from "openai";
const client = new OpenAI({
baseURL: "https://openrouter.ai/api/v1",
apiKey: process.env.OPENROUTER_API_KEY,
});
const completion = await client.chat.completions.create({
model: "prime-intellect/intellect-3",
messages: [{ role: "user", content: "Hello!" }],
});
console.log(completion.choices[0].message.content);Model slug: prime-intellect/intellect-3
Editor's verdict
INTELLECT-3 is Prime-intellect's proprietary language models with a 131K-token context window.
At $1.10 per 1M output tokens, it is mid-priced for its class.
It is available through Prime-intellect's API and aggregators like OpenRouter.
Best suited to strong handling of extended inputs and flexible text-based tasks.
Frequently asked questions
The model supports a context window of 131072 tokens.
User reviews
Real, verified reviews from the community shape this model's rating.
Loading reviews…
Similar models
Other language models worth comparing.