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Cogito v2.1 671B

Deep Cogito Cogito v2.1 671B — pricing, 128k context window, API cost calculator and alternatives.

By Deep Cogito

{} JSON Forces output to be valid JSON, reducing parse errors. Some providers also let you constrain to a schema. Glossary →
Context window Maximum tokens (input + output) the model can process in a single request. Glossary →
128,000
tokens
Input price What the model charges for tokens you send (prompt + context). Glossary →
$1.2500
per 1M tokens
Output price What the model charges for tokens it generates. Usually 3–5× pricier than input. Glossary →
$1.2500
per 1M tokens

Specs

Provider
Deep Cogito
Slug
deepcogito/cogito-v2-1-671b
Capabilities
json_mode

Pricing freshness

Tier
standard
Currency
USD
As of
2026-05-08 17:08 UTC
Estimate monthly cost → See alternatives to Cogito v2.1 671B →

Pricing history

Tracking Cogito v2.1 671B pricing since 2026-05-08. We'll plot the chart here once it changes.

Quickstart — call Cogito v2.1 671B from your app

curl https://openrouter.ai/api/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $OPENROUTER_API_KEY" \
  -d '{
    "model": "deepcogito/cogito-v2-1-671b",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'

Official docs: https://openrouter.ai/docs

Related models

Similar capabilities, context window, and price tier — drawn from across the catalog so you can compare alternatives in one click.

Frequently asked questions

What is Cogito v2.1 671B?

Cogito v2.1 671B is a large language model API from Deep Cogito with a 128k-token context window. It costs $1.25 per 1M input tokens and $1.25 per 1M output tokens.

How much does Cogito v2.1 671B cost?

Cogito v2.1 671B is priced at $1.25 per 1M input tokens and $1.25 per 1M output tokens via the Deep Cogito API. A 50/50 input/output workload of 1M total tokens costs about $1.25.

What is the context window of Cogito v2.1 671B?

Cogito v2.1 671B supports up to 128k tokens of context per request — roughly 256 pages of English text or 16000 lines of code at a typical density.

Does Cogito v2.1 671B support vision, tool use, or JSON mode?

Cogito v2.1 671B supports structured JSON mode. It does not support image input (vision) and tool/function calling.

Who makes Cogito v2.1 671B?

Cogito v2.1 671B is built and operated by Deep Cogito. Pricing, context window, and capabilities on this page are refreshed nightly from Deep Cogito's public catalog.

Can I self-host Cogito v2.1 671B?

Cogito v2.1 671B is API-only — its weights are not publicly distributed by Deep Cogito, so it cannot be self-hosted today.

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