All Releases

Release Comparison Tool

Compare up to five model releases side by side, every variant of each on intelligence, pricing, output speed, latency, context window and more.

For details about how we measure and evaluate models, see our Methodology page.

Model Playground

Releases compared

Claude Opus 5.5 (max with fallback)Claude Opus 5.5 (xhigh with fallback)Claude Opus 5.5 (high with fallback)GPT-6 Astra (max)GPT-6 Astra (xhigh)Claude Opus 5.5 (medium with fallback)GPT-6 Astra (high)GPT-6 Astra (medium)GPT-6 Astra (low)Claude Opus 5.5 (low with fallback)
Intelligence Index
58
56
54
53
52
51
51
50
46
42
Finance & Accounting
61
58
56
55
54
54
53
52
49
46
Strategy & Ops
64
62
59
57
57
57
55
54
50
48
Legal
63
61
59
59
58
57
58
57
53
52
Healthcare & Medical
55
53
49
53
51
49
51
50
46
43
Cost per TaskUSD
$5.98
$3.46
$1.82
$3.26
$2.31
$1.34
$1.73
$1.54
$0.82
$0.55
Output SpeedTokens/s
96
82
77
56
54
78
56
52
49
77
Time to First Tokens
588.68
114.77
24.30
261.40
132.31
10.44
35.20
4.04
2.22
5.38
Context Window
1M
1M
1M
1M
1M
1M
1M
1M
1M
1M
Creator
Anthropic
Anthropic
Anthropic
OpenAI
OpenAI
Anthropic
OpenAI
OpenAI
OpenAI
Anthropic
License
Proprietary
Proprietary
Proprietary
Proprietary
Proprietary
Proprietary
Proprietary
Proprietary
Proprietary
Proprietary
Input Modality

Supports: text and image

Supports: text and image

Supports: text and image

Supports: text and image

Supports: text and image

Supports: text and image

Supports: text and image

Supports: text and image

Supports: text and image

Supports: text and image

Output Modality

Supports: text

Supports: text

Supports: text

Supports: text

Supports: text

Supports: text

Supports: text

Supports: text

Supports: text

Supports: text

Providers
AnthropicAmazon BedrockGoogleMicrosoft Azure
Anthropic
Anthropic
OpenAIMicrosoft AzureAmazon Bedrock
OpenAI
Anthropic
OpenAI
OpenAI
OpenAIMicrosoft Azure
AnthropicAmazon BedrockGoogleMicrosoft Azure
Artificial Analysis Intelligence Index · Higher is better
Output tokens per second · Higher is better
Weighted average cost (USD) per Intelligence Index task · Lower is better

Intelligence

Artificial Analysis Intelligence Index

Artificial Analysis Intelligence Index v4.3.2 incorporates 10 evaluations: AA-Briefcase v1.1, GDPval-AA v2.1, AutomationBench-AA, Terminal-Bench 4.0, SciCode, Humanity's Last Exam, GDP.pdf, CritPt, AA-Omniscience, AA-LCR v1.1

Intelligence Index vs. Cost per Task

Artificial Analysis Intelligence Index · Weighted average cost (USD) per Artificial Analysis Intelligence Index task
Most attractive quadrant
Claude Opus 5.5
GPT-6 Astra
Pareto line

Cost per Task (USD, Log Scale)

Cost

Cost per Intelligence Index Task

Weighted average cost (USD) per Intelligence Index task · Segmented by token type · Lower is better

Speed & Latency

Output Speed

Output tokens per second · Higher is better

Capability Scores

Capability Indexes

Measures the performance of models on specific capabilities and industries
Finance & Accounting Index

Incorporates 7 evaluations: AA-Omniscience, GDPval-AA v2.1, AA-Briefcase v1.1, Humanity's Last Exam, AutomationBench-AA, AA-LCR v1.1, GDP.pdf · Higher is better

Strategy & Ops Index

Incorporates 6 evaluations: GDPval-AA v2.1, AA-Briefcase v1.1, AA-Omniscience, AutomationBench-AA, AA-LCR v1.1, GDP.pdf · Higher is better

Legal Index

Incorporates 7 evaluations: AA-Omniscience, GDPval-AA v2.1, AA-Briefcase v1.1, Humanity's Last Exam, AA-LCR v1.1, GDP.pdf, AutomationBench-AA · Higher is better

Healthcare & Medical Index

Incorporates 6 evaluations: AA-Omniscience, GDPval-AA v2.1, AA-Briefcase v1.1, MLCR-AA, Humanity's Last Exam, AutomationBench-AA · Higher is better

Engineering Index

Incorporates 6 evaluations: AA-Omniscience, Humanity's Last Exam, CritPt, GDPval-AA v2.1, AA-Briefcase v1.1, Terminal-Bench 4.0 · Higher is better

Economics Index

Incorporates 5 evaluations: AA-Omniscience, Humanity's Last Exam, GDPval-AA v2.1, AA-Briefcase v1.1, AA-LCR v1.1 · Higher is better

AA-PersonalityBenchNew

vs

AA-PersonalityBench: Expressiveness Index, Claude Opus 5.5 (max with fallback) vs GPT-6 Astra (max)

Chance each model’s answer is judged to show more of each trait from their Elo gap · 50% is an even match
AnthropicClaude Opus 5.5 (max with fallback)OpenAIGPT-6 Astra (max)
Lexically Varied
97%
3%
Metaphorical
93%
7%
Eloquent
79%
21%
Literate
59%
41%
Natural Sounding
56%
44%