Deep Cogito: Cogito v2.1 671B

Deep Cogito: Cogito v2.1 671B

deepcogito · Released Nov 13, 2025
42
Our Score

Cogito v2.1 671B MoE represents one of the strongest open models globally, matching performance of frontier closed and open models. This model is trained using self play with reinforcement learning to reach state-of-the-art performance on multiple categories (instruction following, coding, longer queries and creative writing). This advanced system demonstrates significant progress toward scalable superintelligence through policy improvement.

$1.25 / 1M Input Price
$1.25 / 1M Output Price
128,000 tokens Context Window
671B Parameters

Architecture

ModalityText → Text
TokenizerOther
Parameters671B

Performance Indices

Source: Artificial Analysis

24.8 Coding Index
16.7 Agentic Index
72.7 Math Index

Benchmark Scores

Evaluations

GPQA Diamond 76.8%
Graduate-level scientific reasoning
HLE 11%
Humanity's Last Exam
MMLU Pro 84.9%
Multi-task language understanding
LiveCodeBench 68.8%
Live coding evaluation
SciCode 41%
Scientific computing
AIME 2025 72.7%
Competition mathematics (2025)
IFBench 46.3%
Instruction following
LCR 21.7%
Long-context reasoning
TerminalBench Hard 16.7%
Agentic terminal tasks

Benchmark data from Artificial Analysis and Hugging Face

Model Information

OpenRouter ID deepcogito/cogito-v2.1-671b
Providerdeepcogito
Release Date November 13, 2025
Context Length128,000 tokens
Status Active

Pricing

Token Type Cost per 1M tokens Cost per 1K tokens
Input $1.25 $0.001250
Output $1.25 $0.001250

Live Performance

Live endpoint metrics — refreshed every 30 minutes.

100%
Avg Uptime
289ms
Best Latency (TTFT)
81 tok/s
Best Throughput
1/1
Active Endpoints
Available via: Together