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Compare AI models: Claude Opus 5.5 vs Gemini 3.8 Flash

  1. Claude Opus 5.5AnthropicHollow points use fallbacks · hover for details
  2. Gemini 3.8 FlashGoogle
ReasoningCodingCost efficiencyContext windowMultimodalTool use
Normalized model capability scores
ModelReasoningCodingCost efficiencyContext windowMultimodalTool use
Claude Opus 5.5100/10075/1008/10081/10050/10050/100 — Tool calling supported; no comparable benchmark
Gemini 3.8 Flash50/10081/10033/10092/10083/10050/100
Overview
Author
Context length
1M
1M
Reasoning
True
True
Input modalities
Text, Image, Pdf
Text, Image, Video, Audio, Pdf
Output modalities
Text
Text
Providers
Pricing
Input
$4.00/ 1M
$0.75/ 1M
Output
$20/ 1M
$3.75/ 1M
Cached input
$0.20/ 1M
$0.07/ 1M
MomentumLast 2 mo
Unique users
1
3
Completed sessions
2
19
Token share
0%
0%
Tokens
20M+100%
200K+100%
SEP 15NOV 9
SEP 15NOV 9
RetentionWeek 1
Returning users
Pending
Pending

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