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Anthropic: Claude Opus 4.5

anthropic/claude-opus-4.5

Claude Opus 4.5 is Anthropic’s frontier reasoning model optimized for complex software engineering, agentic workflows, and long-horizon computer use. It offers strong multimodal capabilities, competitive performance across real-world coding and...

Source-linkedClosed weights
Report data
Context window200K
Maximum output64K
Provider offers0
Knowledge cutoffUndisclosed
Capabilities

What this model supports

ReasoningNo
Tool callingNo
Structured outputNo
AttachmentsNo
Temperature controlNo
Open weightsNo
Creator
Anthropic
Family
Not documented
Modalities
File, Image, Text
License
Not documented
Release date
Not documented
Model ID
anthropic/claude-opus-4.5
Market availability

Provider pricing

Report price →
No known providers available.
Evidence

Published benchmark results

Design Arena: 3d vs top 8 models
Z.ai: GLM 5.2
1371.0
Claude Fable 5
1361.0
xAI: Grok 4.5
1352.0
Kimi K2.6
1348.0
Anthropic: Claude Opus 4.6
1348.0
Z.ai: GLM 5.1
1336.0
DeepSeek V4 Pro
1326.0
Anthropic: Claude Opus 4.5
1286.0
Design Arena: androidnative vs top 8 models
Anthropic: Claude Opus 4.8
1370.0
Anthropic: Claude Opus 4.7
1290.0
Z.ai: GLM 5V Turbo
1267.0
GPT-5.5
1260.0
Z.ai: GLM 5.2
1250.0
Gemini 3.5 Flash
1247.0
Z.ai: GLM 5.1
1246.0
Anthropic: Claude Opus 4.5
1184.0
Design Arena: asciiart vs top 8 models
Claude Fable 5
1369.0
Anthropic: Claude Opus 4.7
1326.0
Gemini 3.1 Pro Preview
1316.0
Gemini 3.5 Flash
1308.0
Anthropic: Claude Opus 4.8
1305.0
Anthropic: Claude Opus 4.6
1305.0
GPT-5.5
1302.0
Anthropic: Claude Opus 4.5
1235.0
Design Arena: codecategories vs top 8 models
Z.ai: GLM 5.2
1352.0
Claude Fable 5
1344.0
Anthropic: Claude Opus 4.6
1336.0
Anthropic: Claude Opus 4.7
1330.0
xAI: Grok 4.5
1328.0
Z.ai: GLM 5.1
1321.0
Kimi K2.6
1320.0
Anthropic: Claude Opus 4.5
1284.0
Design Arena: dataviz vs top 8 models
Claude Fable 5
1372.0
Z.ai: GLM 5.1
1366.0
xAI: Grok 4.5
1330.0
Anthropic: Claude Opus 4.6
1321.0
Anthropic: Claude Opus 4.7
1320.0
Z.ai: GLM 5.2
1318.0
Anthropic: Claude Sonnet 4.6
1317.0
Anthropic: Claude Opus 4.5
1281.0
Design Arena: fullstack vs top 8 models
Anthropic: Claude Opus 4.7
1503.0
Anthropic: Claude Opus 4.8
1322.0
Claude Sonnet 5
1314.0
Z.ai: GLM 5.2
1298.0
Claude Fable 5
1296.0
Anthropic: Claude Opus 4.6
1286.0
Anthropic: Claude Sonnet 4.6
1271.0
Anthropic: Claude Opus 4.5
1221.0
Design Arena: gamedev vs top 8 models
Claude Fable 5
1387.0
Z.ai: GLM 5.2
1354.0
Claude Sonnet 5
1345.0
GPT-5.5
1344.0
Anthropic: Claude Opus 4.6
1339.0
MiMo-V2.5-Pro
1334.0
Anthropic: Claude Opus 4.7
1334.0
Anthropic: Claude Opus 4.5
1290.0
Design Arena: mobileapps vs top 8 models
Anthropic: Claude Opus 4.8
1287.0
Claude Fable 5
1282.0
MiniMax: MiniMax M3
1273.0
Anthropic: Claude Opus 4.6
1259.0
Gemini 3.5 Flash
1259.0
Anthropic: Claude Sonnet 4.6
1255.0
Z.ai: GLM 5.2
1243.0
Anthropic: Claude Opus 4.5
1238.0
Design Arena: svg vs top 8 models
Claude Fable 5
1364.0
Gemini 3.1 Pro Preview
1340.0
Gemini 3.5 Flash
1297.0
Anthropic: Claude Opus 4.6
1279.0
GPT-5.5
1277.0
Anthropic: Claude Opus 4.7
1274.0
Z.ai: GLM 5.1
1273.0
Anthropic: Claude Opus 4.5
1230.0
Design Arena: uicomponent vs top 8 models
Claude Fable 5
1406.0
Anthropic: Claude Opus 4.7
1358.0
Anthropic: Claude Opus 4.6
1344.0
Z.ai: GLM 5.2
1336.0
Qwen: Qwen3.7 Max
1331.0
Z.ai: GLM 5.1
1330.0
Anthropic: Claude Sonnet 4.6
1321.0
Anthropic: Claude Opus 4.5
1286.0
Design Arena: webapps vs top 8 models
Claude Sonnet 5
1351.0
Claude Fable 5
1338.0
Anthropic: Claude Opus 4.7
1326.0
Anthropic: Claude Opus 4.8
1288.0
Z.ai: GLM 5.2
1280.0
xAI: Grok 4.5
1270.0
Qwen: Qwen3.7 Max
1267.0
Anthropic: Claude Opus 4.5
1217.0
Design Arena: website vs top 8 models
Z.ai: GLM 5.2
1346.0
Claude Fable 5
1336.0
Anthropic: Claude Opus 4.6
1331.0
Anthropic: Claude Opus 4.7
1329.0
xAI: Grok 4.5
1323.0
Anthropic: Claude Sonnet 4.6
1320.0
Claude Sonnet 5
1314.0
Anthropic: Claude Opus 4.5
1282.0