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Anthropic Anthropic VS OpenAI OpenAI

Anthropic vs OpenAI: which AI lab wins at real work?

22 task areas · each lab's best model per task · same graded test runs · rank comparison only.

Anthropic's best model out-ranks OpenAI's in 15 of 22 task areas we tested; OpenAI takes 7. Lineup prices run $6–$60/1M for Anthropic vs $0.75–$210/1M for OpenAI.

15
Task areas won
7
9
Models tested
9
Claude Opus 4.8
Strongest model
GPT-5.5
87
Leader avg percentile
86
10
Outright #1 areas
7
$6.0–$60.0
Lineup price / 1M
$0.75–$210.0

Task by task — each lab's best

For every task area, we take each lab's highest-ranked model and compare where they land against every model we test.

Task area Anthropic's best OpenAI's best Winner
Training & Education
#1 / 110
#63 / 110
Anthropic
Structured Output
#61 / 113
#1 / 113
OpenAI
Sales
#1 / 110
#40 / 110
Anthropic
AI Strategy
#1 / 126
#30 / 126
Anthropic
Data & Analytics
#2 / 110
#27 / 110
Anthropic
Presentations & Decks
#20 / 110
#1 / 110
OpenAI
Executive Assistant
#1 / 112
#11 / 112
Anthropic
Summarization & Meeting Notes
#1 / 110
#10 / 110
Anthropic
Landing Pages
#1 / 72
#9 / 72
Anthropic
Legal & HR
#1 / 110
#9 / 110
Anthropic
RAG, Safety & Grounding
#11 / 113
#16 / 113
Anthropic
Investor & Pitch
#3 / 66
#7 / 66
Anthropic
Frontend & Landing Pages
#2 / 109
#5 / 109
Anthropic
Chef / Home Cooking
#3 / 126
#1 / 126
OpenAI
Coding
#3 / 115
#1 / 115
OpenAI
Customer Support
#1 / 113
#3 / 113
Anthropic
Research & Competitive Analysis
#3 / 110
#1 / 110
OpenAI
Content & Brand
#1 / 124
#2 / 124
Anthropic
Creative & Comedy
#1 / 110
#2 / 110
Anthropic
Knowledge & Docs
#2 / 110
#1 / 110
OpenAI
Product & Project Management
#2 / 110
#1 / 110
OpenAI
Translation & Localization
#2 / 110
#3 / 110
Anthropic

Rank = the model's position among every model config we tested in that task area (lower is better). Sorted by biggest gap first.

Frequently asked

Is Anthropic better than OpenAI for real work?

Comparing each lab's best model per task area across 22 areas, Anthropic ranks higher in 15 and OpenAI in 7.

What is Anthropic's strongest model?

Claude Opus 4.8 — avg percentile 87 across our task areas.

What is OpenAI's strongest model?

GPT-5.5 — avg percentile 86 across our task areas.

Where does Anthropic beat OpenAI?

Anthropic leads at Training & Education, Sales, AI Strategy.

Where does OpenAI beat Anthropic?

OpenAI leads at Structured Output, Presentations & Decks, Chef / Home Cooking.

Every Anthropic model, ranked → Every OpenAI model, ranked → Full model leaderboard →

More lab match-ups

This page is Spring Prompt, running in public

We just did this for every model. Do it for your prompt.

The rankings above come from running real tasks through real models and scoring every output. Spring Prompt is that same engine — pointed at your prompt, your test cases, and your definition of good.

  • Generate test cases from your prompt — no eval set required to start.
  • Compare models side by side with quality, cost and latency in one matrix.
  • Optimise the winner until the scores say it's ready to ship.
Experiment · Cold outreach email

Prompt × model results

12 test cases · 3 evals
Claude Opus
GPT-5
Gemini
v1
7.1
6.8
7.4
v2
8.3
7.9
8.0
v3
9.2
8.6
8.4
Best combo: v3 × Claude Opus
9.2 quality · $0.004/run · 1.8s