Access and Use Deep Cogito: Cogito V2 Preview Llama 405B via OpenRouter using API Key

Access and Use cogito-v2-preview-llama-405B via OpenRouter
Cogito v2 405B is a dense hybrid reasoning model that combines direct answering capabilities with advanced self-reflection. It represents a significant step toward frontier intelligence with dense architecture delivering performance competitive with leading closed models. This advanced reasoning system combines policy improvement with massive scale for exceptional capabilities.
Deep Cogito: Cogito V2 Preview Llama 405B Overview
| Full Name | Deep Cogito: Cogito V2 Preview Llama 405B |
| Provider | Deep Cogito |
| Model ID | deepcogito/cogito-v2-preview-llama-405B |
| Release Date | Sep 2, 2025 |
| Context Window | 32,768 tokens |
| Pricing /1M tokens | $0.004 for input $0.004 for output |
| Supported Input Types | text |
| Supported Parameters | frequency_penaltyinclude_reasoninglogit_biasmax_tokensmin_ppresence_penaltyreasoningrepetition_penaltyresponse_formatstopstructured_outputstemperaturetool_choicetoolstop_ktop_p |
Complete Setup Guide
Create OpenRouter Account
- Visit openrouter.ai
- Click "Sign In" and create an account (free)
- Verify your email address
- You'll receive $1 in free credits to test models
Get Your OpenRouter API Key
- Log in to OpenRouter dashboard
- Go to "API Keys" section in the menu
- Click "Create API Key"
- Give it a name (e.g., "TypingMind")
- Copy your API key (starts with "sk-or-v1-...")

Add Credits to OpenRouter (Optional)
- Go to "Credits" in OpenRouter dashboard
- Click "Add Credits"
- Choose amount ($5 minimum, $20 recommended for testing)
- Complete payment (credit card or crypto)
- Credits never expire!
Configure TypingMind with OpenRouter API Key
Method 1: Direct Import (Recommended)
- Open TypingMind in your browser
- Click the "Settings" icon (gear symbol)
- Navigate to "Manage Models" section
- Click "Add Custom Model"
- Select "Import OpenRouter" from the options
- Enter your OpenRouter API key from Step 1
- Click "Check API Key" to verify the connection
- Choose which models you want to add from the list (you can add multiple at once)
- Click "Import Models" to complete the setup

Method 2: Manual Custom Model Setup
- Open TypingMind in your browser
- Click the "Settings" icon (gear symbol)
- Navigate to "Models" section
- Click "Add Custom Model"
- Fill in the model information:Name:
deepcogito/cogito-v2-preview-llama-405B via OpenRouter(or your preferred name)Endpoint:https://openrouter.ai/api/v1/chat/completionsModel ID:deepcogito/cogito-v2-preview-llama-405BContext Length: Enter the model's context window (e.g., 32768 for deepcogito/cogito-v2-preview-llama-405B)
deepcogito/cogito-v2-preview-llama-405Bhttps://openrouter.ai/api/v1/chat/completionsdeepcogito/cogito-v2-preview-llama-405B via OpenRouterhttps://www.typingmind.com/model-logo.webp32768 - Add custom headers by clicking "Add Custom Headers" in the Advanced Settings section:Authorization:
Bearer <OPENROUTER_API_KEY>:X-Title:typingmind.comHTTP-Referer:https://www.typingmind.com - Enable "Support Plugins (via OpenAI Functions)" if the model supports the "functions" or "tool_calls" parameter, or enable "Support OpenAI Vision" if the model supports vision.
- Click "Test" to verify the configuration
- If you see "Nice, the endpoint is working!", click "Add Model"
Start chatting with deepcogito/cogito-v2-preview-llama-405B
Now you can start chatting with the deepcogito/cogito-v2-preview-llama-405B model via OpenRouter on TypingMind:
- Select your preferred deepcogito/cogito-v2-preview-llama-405B model from the model dropdown menu
- Start typing your message in the chat input
- Enjoy faster responses and better features than the official interface
- Switch between different AI models as needed

deepcogito/cogito-v2-preview-llama-405B
Pro tips for better results:
- Use specific, detailed prompts for better responses (How to use Prompt Library)
- Create AI agents with custom instructions for repeated tasks (How to create AI Agents)
- Use plugins to extend deepcogito/cogito-v2-preview-llama-405B capabilities (How to use plugins)
- Upload documents and images directly to chat for AI analysis and discussion (Chat with documents)
Why TypingMind + OpenRouter?
- Best-in-class UI: TypingMind's interface is far superior to standard chat UIs
- Model flexibility: Switch between Deep Cogito: Cogito V2 Preview Llama 405B and 200+ models instantly
- Cost control: Pay only for what you use through OpenRouter
- One-time purchase: Buy TypingMind once, use forever with any OpenRouter model
- Data privacy: Your conversations stored locally, not on external servers
Frequently Asked Questions
Do I need a subscription to use Deep Cogito: Cogito V2 Preview Llama 405B?
No! Through OpenRouter, you pay only for what you use with no monthly subscription. Add credits to your OpenRouter account and they never expire. TypingMind is also a one-time purchase, not a subscription.
How much will it cost to use Deep Cogito: Cogito V2 Preview Llama 405B?
It costs 0.0035 for input and 0.0035 for output via OpenRouter. A typical conversation might cost $0.01-0.10 depending on length. Start with $5-10 in credits to test.
Can I use other models besides Deep Cogito: Cogito V2 Preview Llama 405B?
Yes! With OpenRouter + TypingMind, you get access to 200+ models including GPT-4, Claude, Gemini, Llama, Mistral, and many more. Switch between them instantly in TypingMind.
Is my data private and secure?
Yes! TypingMind stores conversations locally (web version in browser, desktop version on your device). OpenRouter handles API calls securely and doesn't train on your data. Check each provider's data policy for specifics.
Can I use Deep Cogito: Cogito V2 Preview Llama 405B for commercial projects?
Yes! Check Deep Cogito's terms of service for specific commercial use policies. OpenRouter and TypingMind both support commercial use.
What if Deep Cogito: Cogito V2 Preview Llama 405B is unavailable?
OpenRouter allows you to configure fallback models. If Deep Cogito: Cogito V2 Preview Llama 405B is down, it can automatically route to your backup choice. You can also manually switch models in TypingMind anytime.
How do I cancel or get a refund?
OpenRouter: No subscriptions to cancel. Unused credits remain in your account forever.











