Deep Cogito: Cogito v2.1 671B

Public pricingIntelligence 79/100Medium memoryDeep thinkingTool use

Deep Cogito: Cogito v2.1 671B is a text model for general chat, analysis, and production use. It combines steady general-purpose performance with a 128K tokens context window and a balanced-cost profile. Use it for general chat, analysis, and production workloads when quality, speed, and cost matters.

Input

$1.25/1M

Output

$1.25/1M

Cached

$0.06/1M

Batch

$0.30/1M

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Technical specifications

Cogito v2.1 671B at a glance.

Memory

128,000

tokens

Max reply

32,768

tokens

Memory tier

Medium

a long report or a codebase file

Tokenizer

—

Released

Nov 2025

Training cutoff

Jun 2025

Availability

Public pricing

Status

active

What it can do

Capabilities & limits.

  • Understands images
  • Deep step-by-step thinking
  • Uses tools / calls functions
  • Strict JSON output
  • Streams replies
  • Fine-tunable on your data

When to pick Cogito v2.1 671B

  • Multi-step reasoning, research agents, or hard math.
  • Agentic workflows that call tools or APIs.

When to look elsewhere

  • Your workload involves images — pick a vision-capable model instead.

Alternatives

Similar models to compare.

FAQ

Cogito v2.1 671B — the questions we see most.

Pricing, capabilities, alternatives — generated from the same data that powers the calculator above.

Get instant answers from our AI agent

At a typical workload of 50,000 conversations a month with 1,500-token prompts and 800-token replies, Cogito v2.1 671B costs roughly $144 per month. Input is $1.25 /1M tokens and output is $1.25 /1M tokens.
Cogito v2.1 671B has a 128,000-token context window (medium memory — a long report or a codebase file). That means you can fit about 24,000 words of input and history in a single call.
Beyond text generation, Cogito v2.1 671B supports deep step-by-step reasoning, calling functions / tools, strict JSON output. It streams replies by default.
Cogito v2.1 671B was released in November 2025, with training data cut off around June 2025.
Models in a similar class include Gemini 2.5 Pro, Gemini 2.5 Pro Preview 05-06, Gemini 2.5 Pro Preview 06-05. The "Similar models" section below this FAQ links into each.

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