Compare AI models: Claude Opus 5.5 vs GPT-6 Luna
- Claude Opus 5.5AnthropicHollow points use fallbacks · hover for details
- GPT-6 LunaOpenAIHollow points use fallbacks · hover for details
ReasoningCodingCost efficiencyContext windowMultimodalTool use
| Model | Reasoning | Coding | Cost efficiency | Context window | Multimodal | Tool use |
|---|---|---|---|---|---|---|
| Claude Opus 5.5 | 100/100 | 67/100 | 10/100 | 80/100 | 50/100 | 50/100 — Tool calling supported; no comparable benchmark |
| GPT-6 Luna | 50/100 — Reasoning supported; no comparable benchmark | 46/100 | 75/100 | 98/100 | 50/100 | 50/100 — Tool calling supported; no comparable benchmark |
Overview
Author
Context length
1M
1.1M
Reasoning
True
True
Input modalities
Text, Image, Pdf
Text, Image, Pdf
Output modalities
Text
Text
Providers
Pricing
Input
$4.00/ 1M
$0.10/ 1M
Output
$20/ 1M
$0.50/ 1M
Cached input
$0.20/ 1M
$0.01/ 1M
MomentumLast 2 mo
Unique users
No usage
188K
Completed sessions
No usage
1,269,167
Token share
No usage
0.13%
Tokens
No usage
1.2T+100%
No trend data
AUG 13OCT 7
RetentionWeek 1
Returning users
Pending
71.9%1K user-weeks