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Comparison

Anthropic vs OpenAI

Where Anthropic and OpenAI rank on 13 published boards, and the latest sourced figure for each of 20 metrics.

Anthropic

company · anthropic.com

Boards
12
Figures
19
Sources
3
Mean confidence
86%

OpenAI

company · openai.com

Boards
13
Figures
20
Sources
3
Mean confidence
83%

Ranks

Where each ranks

Published Rank.ai board positions for Anthropic and OpenAI
BoardAnthropicOpenAIRanks higherAs of
Brands in Anthropic model API answers#2score 16.67#1score 16.67OpenAISep 10, 2026
AI brand citation share#9score 0#1score 32.43OpenAISep 10, 2026
AI brand engine breadth#2score 3#1score 3OpenAISep 10, 2026
Brands in Gemini model API answers#2score 41.67#1score 66.67OpenAISep 10, 2026
Brands in OpenAI model API answers#2score 50#1score 75OpenAISep 10, 2026
AI brand visibility#2score 38.33#1score 55OpenAISep 10, 2026
AI companies by annual compute spend#2score 6.8#1score 16.3OpenAIJul 13, 2026
AI companies by annualized revenue#1score 65#2score 50AnthropicOct 8, 2026
AI companies by closed equity funding#2score 139.4#1score 182.75OpenAIOct 23, 2026
AI companies by full-company staff#2score 3,000#1score 4,500OpenAIAug 10, 2026
AI Companies by Latest Post-Money Valuation#1score 965#2score 852AnthropicOct 23, 2026
AI model/API platform presence#2score 36.11#1score 52.78OpenAISep 10, 2026
AI Companies by Reported Daily Token ThroughputNot ranked#2score 8,600Only one is rankedSep 30, 2026

Figures

The latest figure for each

Latest published figures for Anthropic and OpenAI
MetricAnthropicOpenAIAs of
AI company economicsAnnual compute spend$6.8B75% confidence · Epoch AI open datasets$5.8B75% confidence · Epoch AI open datasetsJul 13, 2026
AI company economicsAnnualized revenue$19B95% confidence · Epoch AI open datasets$2B75% confidence · Epoch AI open datasetsOct 8, 2026
Public prompt benchmarkAnthropic citation share0%100% confidence · Rank.ai AI API Brands Prompt Benchmark12.5%100% confidence · Rank.ai AI API Brands Prompt BenchmarkJul 27, 2026
Public prompt benchmarkAnthropic mention coverage15%100% confidence · Rank.ai AI API Brands Prompt Benchmark15%100% confidence · Rank.ai AI API Brands Prompt BenchmarkSep 10, 2026
Public prompt benchmarkAnthropic recommendation-prompt presence16.7%100% confidence · Rank.ai AI API Brands Prompt Benchmark16.7%100% confidence · Rank.ai AI API Brands Prompt BenchmarkSep 10, 2026
Public prompt benchmarkCitation share0%100% confidence · Rank.ai AI API Brands Prompt Benchmark32.4%100% confidence · Rank.ai AI API Brands Prompt BenchmarkSep 10, 2026
AI company economicsClosed primary equity funding$13B95% confidence · Epoch AI open datasets$8.3B75% confidence · Epoch AI open datasetsOct 23, 2026
Public prompt benchmarkEngine breadth3 engines100% confidence · Rank.ai AI API Brands Prompt Benchmark3 engines100% confidence · Rank.ai AI API Brands Prompt BenchmarkSep 10, 2026
AI company economicsFull-company staff85 people75% confidence · Epoch AI open datasets113 people95% confidence · Epoch AI open datasetsAug 10, 2026
Public prompt benchmarkGemini citation share0%100% confidence · Rank.ai AI API Brands Prompt Benchmark25%100% confidence · Rank.ai AI API Brands Prompt BenchmarkSep 10, 2026
Public prompt benchmarkGemini mention coverage45%100% confidence · Rank.ai AI API Brands Prompt Benchmark75%100% confidence · Rank.ai AI API Brands Prompt BenchmarkSep 10, 2026
Public prompt benchmarkGemini recommendation-prompt presence41.7%100% confidence · Rank.ai AI API Brands Prompt Benchmark66.7%100% confidence · Rank.ai AI API Brands Prompt BenchmarkSep 10, 2026
AI company economicsLatest closed-round post-money valuation$18.4B75% confidence · Epoch AI open datasets$500B95% confidence · Epoch AI open datasetsOct 23, 2026
Public prompt benchmarkMention coverage38.3%100% confidence · Rank.ai AI API Brands Prompt Benchmark55%100% confidence · Rank.ai AI API Brands Prompt BenchmarkSep 10, 2026
Public prompt benchmarkOpenAI citation share0%100% confidence · Rank.ai AI API Brands Prompt Benchmark41.2%100% confidence · Rank.ai AI API Brands Prompt BenchmarkSep 10, 2026
Public prompt benchmarkOpenAI mention coverage55%100% confidence · Rank.ai AI API Brands Prompt Benchmark75%100% confidence · Rank.ai AI API Brands Prompt BenchmarkSep 10, 2026
Public prompt benchmarkOpenAI recommendation-prompt presence50%100% confidence · Rank.ai AI API Brands Prompt Benchmark75%100% confidence · Rank.ai AI API Brands Prompt BenchmarkSep 10, 2026
Public prompt benchmarkRecommendation-prompt presence36.1%100% confidence · Rank.ai AI API Brands Prompt Benchmark52.8%100% confidence · Rank.ai AI API Brands Prompt BenchmarkSep 10, 2026
Public prompt benchmarkReviewed-brand presence share13.1%100% confidence · Rank.ai AI API Brands Prompt Benchmark18.9%100% confidence · Rank.ai AI API Brands Prompt BenchmarkSep 10, 2026
AI company usageReported daily token throughputNot published133,000,000,000 tokens/day95% confidence · Epoch AI open datasetsSep 30, 2026

Enter your website. In about two minutes, Rank.ai asks ChatGPT, Claude and Gemini 12 questions your customers ask and grades how often they name you.

  • Your grade out of 100How often AI names you, cites your site, and how high it ranks you.
  • Who gets namedEvery competitor in the answers, most named first.
  • The pages AI readsThe sources behind each answer.
  • Three fixesWhat to fix first, with a brief for the first article.