Comparing 2 models

Claude Opus 4.6 vs DeepSeek V4 Flash 0423

Facts first, then task-specific rankings. A highlighted cell is better only for that row, not universally.

metric

Model 1Claude Opus 4.6

Model 2DeepSeek V4 Flash 0423

Best for

Vision & Documents (#1)

Best Cheap LLM for High Volume (#1)

Provider

anthropic

deepseek

Context

1.0MBest

Input / 1M

$0.081Best

Output / 1M

$25

$0.16Best

Tool use

yesBest

Vision

yesBest

—

Reasoning

yesBest

Open-weight

—

yesBest

Released

Aug 26, 2025

Apr 24, 2026

task evidence

How they place when the question changes

Lower ranks are better. “Best” marks the strongest option in this shortlist for that task.

Best LLM for Document Summarization #7Best —

Best LLM for Math & Reasoning #2Best —

Best LLM for Chat & Roleplay #2Best —

Best LLM for Coding —#7Best

Best LLM for Roleplay & Character #2Best —

Best LLM for Translation #6Best —

Best LLM for Structured Data Extraction #8Best —

Best LLM for Vision & Documents #1Best #6

Best LLM for JSON & Schema Output #6Best —

Best LLM for Fast Summaries #6Best —

Best LLM for Logic & Problem Solving #4Best —

Best Open-Weight LLM for Self-Hosting —#2Best

Best LLM for Marketing Copy #2Best —

Best LLM for Massive Context #3Best —

Best LLM for RAG & Long Context #3Best #7

Best LLM for Business Writing #2Best —

Best LLM for Autonomous Agents #5Best —

Best LLM for Summarization #8Best —

Best LLM for Frontend & UI #5Best —

Best LLM for Competition Math #4Best —

Best LLM for Goose #3Best —

Cheapest Capable LLM #4Best —

Best LLM for Creative Writing #3Best —

Best LLM for Document Parsing #2Best —

Best LLM for Hermes Agent #6 #4Best

Best LLM for AI Agents #6Best —

Best LLM for Literary Translation #3 #2Best

Best LLM for Everyday Translation #3 #2Best

Best LLM for Writing #3Best —

Best LLM for a General Assistant #5Best —

Best LLM for Agentic Coding #5Best —

Best LLM for OCR & Documents —#1Best

Best LLM for Grounded RAG —#2Best

Best Cheap LLM for High Volume #5 #1Best

Best Value LLM #7 #3Best

Best LLM for OpenHands #3Best —