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Anthropic: Claude Opus 4.8

anthropic/claude-opus-4.8

2nd smartest of 178ReasoningToolsJSONVision
Use via OpenRouter ↗
Intelligence
61.4
2nd of 178
Design Elo
1372
androidnative
Speed
59
141st fastest
Latency
1.8s
first token
Input price
$5.00
273rd cheapest
Context
1M
128K max out

How it compares

Smarter than99%
of all ranked models
Faster than52%
of all ranked models
Cheaper than8%
of all ranked models

Overview

Claude Opus 4.8 is Anthropic's most capable generally available model in the Opus family. It supports text, image, and file inputs with text output, with reasoning support and a 1M-token...

Benchmarks

independent · via OpenRouter
Artificial Analysis99th percentile
Intelligence Index
61.4
Coding Index
56.7
Agentic Index
77.8
GPQA Diamond
92%
Humanity's Last Exam
46%
SciCode
54%
Tau²-Bench (agentic)
94%
Design Arena · Elo10,030 tournaments
androidnative
1372
fullstack
1330
asciiart
1309
Game Dev
1300
agenticslides
1294
agenticslides(python-pptx)
1291
UI Component
1287
3D
1287
Website
1283
mobileapps
1282
codecategories
1281
Data Viz
1279
agenticgamedev
1268
svg
1236
agenticslides(html)
1230
agentichtmlslides
1227

Providers & pricing (6)

ProviderIn $/MOut $/MUptime
Google$5.00$25.00100%
Anthropic$5.00$25.0099.4%
Anthropic$5.00$25.0099.9%
Amazon Bedrock$5.00$25.00
Google$5.00$25.00
Amazon Bedrock$5.00$25.0099.9%

Specifications

Context window1M
Max output128K
Knowledge cutoff
Input modalitiestext, image, file
Output modalitiestext
Prompt caching
Cache read price$0.500/M
ModeratedNo

Claude Opus 4.8 FAQ

How much does Claude Opus 4.8 cost?

Claude Opus 4.8 costs $5.00 per million input tokens and $25.00 per million output tokens via OpenRouter, making it 273rd cheapest of 298 paid models.

How smart is Claude Opus 4.8?

Claude Opus 4.8 scores 61.4 on the Artificial Analysis Intelligence Index, ranking 2nd of 178 benchmarked models, with a GPQA Diamond score of 92%.

How fast is Claude Opus 4.8?

Claude Opus 4.8 generates around 59 tokens per second with 1.8s time-to-first-token (p50), the 141st fastest tracked model.

What is Claude Opus 4.8's context window?

Claude Opus 4.8 supports a 1M-token context window and can output up to 128K tokens. It accepts text, image, file input.

Compare head-to-head