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Benchmark

Claude Opus 5.5 (Medium)

  • Anthropic
  • Proprietary
  • Reasoning

Intelligence

Intelligence Index

#15 of 266
  1. 52.653Gemini 4 Argon (High)
  2. 52.452GPT-6 Astra (Xhigh)
  3. 52.452Muse Wonder (Max)
  4. 51.952Claude Sonnet 5.5 (Xhigh)
  5. 51.852GPT-6.1 Sol (Max)
  6. 51.251Claude Opus 5.5 (Medium)
  7. 51.251Claude Fable 5.1 (High)
  8. 5151GPT-6.1 Sol (Xhigh)
  9. 50.951GPT-6 Astra (High)
  10. 50.250GPT-6.1 Sol (High)
Data from Artificial Analysis

Evaluations

  • AA-Omniscience Accuracy64.6%#6
  • Humanity's Last Exam54.7%#9
  • Terminal-Bench 4.052.5%#15
  • AA-LCR84.3%#8
  • SciCode59.3%#12
  • CritPt27.7%#20
  • MMMU-Pro85.7%#8
Claude Opus 5.5 (Medium)Median
Data from Artificial Analysis

Speed and price

Speed

tokens per second · #103 of 162
  1. 9191GLM-5.3 (Low)
  2. 9191Gemma 4 26B A4B (Reasoning)
  3. 8989Llama 3.3 Instruct 70B
  4. 8888Reka Flash 3
  5. 8686Grok 4.7 (High)
  6. 8383Claude Opus 5.5 (Medium)
  7. 8282Claude Opus 5.5 (Xhigh)
  8. 8282Claude Opus 5.5 (Low)
  9. 8181Gemini 4 Argon (High)
  10. 8181Hy3
Data from Artificial Analysis

Latency

seconds to first token · #134 of 162
  1. 10.511GPT-6 Luna (High)
  2. 10.611Nova 2.0 Pro Preview (Low)
  3. 12.513Nova 2.0 Pro Preview (Medium)
  4. 1313Nova 2.0 Lite (Medium)
  5. 15.115GPT-5.6 Terra (Xhigh)
  6. 15.716Claude Opus 5.5 (Medium)
  7. 16.617Nova 2.0 Lite (High)
  8. 19.820GPT-6 Luna (Xhigh)
  9. 2020Claude Fable 5.1 (High)
  10. 20.621Gemini 3.1 Pro Preview
Data from Artificial Analysis

Price

$ per 1M tokens (3:1) · #157 of 169
  1. $4.814.81GPT-5.3 Codex (Xhigh)
  2. $88Claude Opus 5.5 (Max)
  3. $88Claude Opus 5.5 (Xhigh)
  4. $88Claude Opus 5.5 (High)
  5. $88Muse Wonder (Max)
  6. $88Claude Opus 5.5 (Medium)
  7. $88Claude Opus 5.5 (Low)
  8. $11.25$11GPT-5.5 Instant (June 2026)
  9. $2020Claude Fable 5.1 (Max)
  10. $2020Claude Fable 5.1 (Xhigh)
Data from Artificial Analysis

Nearby models

  • Gemini 4 Argon (High)Google52.6
  • GPT-6 Astra (Xhigh)OpenAI52.4
  • Muse Wonder (Max)Meta52.4
  • Claude Sonnet 5.5 (Xhigh)Anthropic51.9
  • GPT-6.1 Sol (Max)OpenAI51.8
  • Claude Fable 5.1 (High)Anthropic51.2
  • GPT-6.1 Sol (Xhigh)OpenAI51
  • GPT-6 Astra (High)OpenAI50.9
Data from Artificial Analysis

Same lab

  • Claude Opus 5.5 (Max)Anthropic57.6
  • Claude Opus 5.5 (Xhigh)Anthropic56
  • Claude Sonnet 5.5 (Max)Anthropic56
  • Claude Opus 5.5 (High)Anthropic53.6
  • Claude Fable 5.1 (Max)Anthropic53.4
  • Claude Fable 5.1 (Xhigh)Anthropic53.2
  • Claude Fable 5.1 (Medium)Anthropic48.9
  • Claude Sonnet 5.5 (High)Anthropic46.8
Data from Artificial Analysis
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