Comparing 2 models

Claude Fable 5 vs GPT-5.6 Terra

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

metric

Model 1Claude Fable 5

Model 2GPT-5.6 Terra

Best for

Charts & Diagrams (#1)

Hermes Agent (#4)

Provider

anthropic

openai

Context

1.1MBest

Input / 1M

$10

$1.25Best

Output / 1M

$50

$7.50Best

Tool use

yesBest

Vision

yesBest

Reasoning

yesBest

Open-weight

—

Released

Jun 7, 2026

Jul 9, 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 Parsing #1Best —

Best LLM for Tool & Function Calling #6Best —

Best LLM for Agentic Coding #2Best #7

Best LLM for Image Understanding #2Best —

Best LLM for OpenClaw #1Best #4

Best LLM for Math & Reasoning #9Best —

Best LLM for Marketing Copy #6Best —

Best LLM for Charts & Diagrams #1Best —

Best LLM for Grounded RAG #1Best —

Best LLM for Fast Summaries #8Best —

Best LLM for Hermes Agent #1Best #4

Best LLM for JSON & Schema Output #9Best —

Best LLM for Logic & Problem Solving #6Best —

Best LLM for Coding #6Best #12

Best Cheap LLM for High Volume #8Best —

Cheapest Capable LLM #8Best —

Best LLM for Business Writing #6Best —

Best LLM for Massive Context #2Best —

Best LLM for Document Summarization #3Best —

Best LLM for Roleplay & Character #1Best —

Best LLM for Competition Math #8Best —

Best LLM for Structured Data Extraction #9Best —

Best LLM for Debugging & Code Review #11Best —

Best LLM for Computer & Browser Use #5Best —

Best LLM for Everyday Translation #5Best —

Best Value LLM #8Best —

Best LLM for Code Completion #5Best —

Best LLM for Creative Writing #1Best —

Best LLM for Translation #7Best —

Best LLM for a General Assistant #9Best —

Best LLM for Vision & Documents #1Best —

Best LLM for Writing #6Best —

Best LLM for OCR & Documents #1Best —

Best LLM for Summarization #4Best —

Best LLM for OpenHands #1Best #5

Best LLM for RAG & Long Context #2Best —

Best LLM for Autonomous Agents #3Best #5

Best LLM for Chat & Roleplay #1Best —

Best LLM for AI Agents #6Best #11

Best LLM for Goose #1Best #7

Best LLM for Literary Translation #7Best —

Best LLM for Frontend & UI #3Best —