Opus 5 is currently #1 on Artificial Analysis Intelligence Leaderboard

Intelligence

Output Speed (tokens/s)

Latency (seconds)

Price ($ per M tokens)

Context Window

Highlights

Intelligence

Artificial Analysis Intelligence Index

Artificial Analysis Intelligence Index by Open Weights / Proprietary

Intelligence Evaluations

AA-Briefcase

AA-Briefcase Elo

AA-Omniscience

AA-Omniscience Index

Openness

Artificial Analysis Openness Index: Score

Intelligence Index Comparisons

Intelligence Index vs. Cost per Intelligence Index Task

Token Use

Output Tokens per Intelligence Index Task

Price and Cost

Cost per Intelligence Index Task

Cost to Run Artificial Analysis Intelligence Index

Pricing: Cache Hit, Input, and Output

Context Window

Context Window

Speed

Measured by Output Speed (tokens per second)

Output Speed

Time per Intelligence Index Task

Latency

Measured by Time (seconds) to First Token

Latency: Time To First Answer Token

End-to-End Response Time

Seconds to output 500 tokens, calculated based on time to first token, 'thinking' time for reasoning models, and output speed

End-to-End Response Time

Model Size (Open Weights Models Only)

Model Size: Total and Active Parameters

Frequently Asked Questions

Claude Opus 5 (Adaptive Reasoning, Max Effort) currently leads the Artificial Analysis Intelligence Index with a score of 61, out of 170 models evaluated.

The top AI models by Intelligence Index are: 1. Claude Opus 5 (Adaptive Reasoning, Max Effort) (61), 2. Claude Opus 5 (Adaptive Reasoning, Xhigh Effort) (60), 3. Claude Fable 5 (Adaptive Reasoning, Max Effort, Opus 4.8 Fallback) (60), 4. GPT-5.6 Sol (max) (59), and 5. Claude Opus 5 (Adaptive Reasoning, High Effort) (59).

Mercury 2 is the fastest at 820.7 tokens per second, followed by HyperNova 60B 2605 (429.2 t/s) and Gemini 3.5 Flash-Lite (421.1 t/s).

Nova Micro is the most affordable at $0.03 per 1M tokens (blended), followed by Sarvam 30B (high) ($0.03) and Gemma 4 E4B (Non-reasoning) ($0.03).

Gemini 2.5 Flash-Lite (Non-reasoning) has the lowest time to first token at 0.34s, followed by Command A+ (0.42s) and North Mini Code (0.49s).

GLM-5.2 (max) is the highest-ranked open weights model with an Intelligence Index score of 51. There are 94 open weights models out of 170 total evaluated.

The top open weights AI models by Intelligence Index are: 1. GLM-5.2 (max) (51), 2. MiniMax-M3 (44), and 3. DeepSeek V4 Pro (Reasoning, Max Effort) (44).

Claude Opus 5 (Adaptive Reasoning, Max Effort) leads among 126 reasoning models with an Intelligence Index score of 61. Reasoning models use extended thinking to work through complex problems before providing answers.

Models are compared across multiple dimensions including intelligence (quality), pricing, output speed (tokens per second), latency (time to first token), end-to-end response time, and context window size. Performance metrics are measured directly using standardized prompts across 586 models.