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Claude Opus 4.8

Reasoning modelOpusClaude 4.8

Claude Opus 4.8

Release date: 2026-05-28Updated: 2026-06-15 07:18:23.471Knowledge cutoff: 2026-012,133
Live demoGitHubHugging FaceCompare
Parameters
Not disclosed
Context length
1M
Chinese support
Supported
Reasoning ability

Claude Opus 4.8 is an AI model published by Anthropic, released on 2026-05-28, for Reasoning model, and 1M context length, under the 不开源 license, with a 1890.00 score on GDPval-AA.

Data sourced primarily from official releases (GitHub, Hugging Face, papers), then benchmark leaderboards, then third-party evaluators. Learn about our data methodology

Claude Opus 4.8

Model basics

Reasoning traces
Supported
Thinking modes
Thinking Level · High (Default)Standard ModeThinking Level · LowThinking Level · MediumThinking Level · Extra-HighThinking Level · Max
Context length
1M tokens
Max output length
125K tokens
Model type
Reasoning model
Modality (in / out)
Text, Image → Text
Release date
2026-05-28
Model file size
No data
MoE architecture
No
Total params / Active params
No data / N/A
Knowledge cutoff
2026-01
Claude Opus 4.8

Open source & experience

Code license
不开源
Weights license
不开源
GitHub repo
GitHub link unavailable
Hugging Face
Hugging Face link unavailable
Claude Opus 4.8

Official resources

Claude Opus 4.8

API details

API speed
3/5
💡Default unit: $/1M tokens. If vendors use other units, follow their published pricing.
Standard
TypeConditionInputOutput
Text-$5.00/ 1M$25.00/ 1M
Cache PricingPrompt Cache
TypeTTLWriteRead
Text5m$6.25/ 1M$0.500/ 1M
Text1h$10.00/ 1M$0.500/ 1M
Claude Opus 4.8

Benchmark Results

Claude Opus 4.8 currently shows benchmark results led by GPQA Diamond (6 / 180, score 93.60), LiveBench (4 / 115, score 78.79), HLE (6 / 164, score 57.90). This page also consolidates core specs, context limits, and API pricing so you can evaluate the model from benchmark results and deployment constraints together.

Thinking
Tool usage
Internet

General Knowledge

7 evaluations
Benchmark / mode
Score
Rank/total
93.60
6 / 180
71.42
33 / 115
LiveBench
Medium
75.47
12 / 115
77.16
6 / 115
78.79
4 / 115
HLE
Extended
49.80
27 / 164
HLE
ExtendedTools
57.90
6 / 164

Coding and Software Engineer

3 evaluations
Benchmark / mode
Score
Rank/total
SWE-bench Verified
ExtendedTools
88.60
4 / 109
69.20
3 / 48
DeepSWE
DeepTools
59
6 / 16

常识推理

1 evaluations
Benchmark / mode
Score
Rank/total
Simple Bench
Standard Mode
64.80
9 / 63

AI Agent - Information Search

1 evaluations
Benchmark / mode
Score
Rank/total
BrowseComp
HighToolsInternet
84.30
7 / 49

Productivity Knowledge

1 evaluations
Benchmark / mode
Score
Rank/total
GDPval-AA
ExtendedTools
1890
1 / 21

AI Agent - Tool Usage

3 evaluations
Benchmark / mode
Score
Rank/total
OSWorld-Verified
ExtendedTools
83.40
2 / 20
MCP-Atlas
DeepTools
82.20
4 / 25
78.90
11 / 21

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Claude Opus 4.8

Publisher

Claude Opus 4.8

Model Overview

Claude Opus 4.8 is an AI model published by Anthropic, released on 2026-05-28, for Reasoning model, and 1M context length, under the 不开源 license, with a 1890.00 score on GDPval-AA.

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