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Models/Anthropic

Anthropic: Claude Opus 4.8

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...

Source-linked Weight access not listed
API data Report
Input modalitiesT
Output modalitiesT
Input price$5/1M tokens
Output price$25/1M tokens
Context window1M
Max output128K
Overview

Capabilities and specifications

? Reasoning Unknown
? Tool calling Unknown
? Structured output Unknown
? Attachments Unknown
✓ Vision input Yes
? Open weights Unknown
Creator
Anthropic
Model family
Not documented
Knowledge cutoff
Not documented
License
Not documented
Release date
Not documented
Model ID
anthropic/claude-opus-4.8
Inference availability

Provider pricing and availability

Provider-specific identifiers, limits, and prices per million tokens.

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The model record exists, but no source-linked provider offer is available yet.

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Serving quality

Performance and reliability

Observed serving measurements stay separate from model specifications and are never estimated from price or model size.

Throughput Not reported

Generation speed; higher is faster.

Latency / TTFT Not reported

Time until the first output token arrives.

Uptime Not reported

Successful requests over a measured period.

Performance varies by inference provider, region, and load. Provider-level measurements appear only when a source reports them.

Published evaluations

Benchmarks

Raw results remain attached to their original source and version.

Benchmark registry
Agentic Index - Unversioned - indexTop 8 reported models
Claude Opus 5
55.3
GPT-5.6 Sol
54.0
Anthropic: Claude Fable 5 (batch)
52.8
Claude Fable 5
52.8
Kimi K3
50.1
GPT-5.6 Terra
47.4
Anthropic: Claude Opus 4.8 (batch)
47.2
Anthropic: Claude Opus 4.8
47.2
Coding Index - Unversioned - indexTop 8 reported models
Claude Opus 5
78.0
GPT-5.6 Sol
77.4
GPT-5.6 Terra
76.7
Anthropic: Claude Fable 5 (batch)
76.5
Claude Fable 5
76.5
Kimi K3
76.2
OpenAI: GPT-5.5 (batch)
74.9
Anthropic: Claude Opus 4.8
74.3
Design Arena: 3d - Unversioned - eloTop 8 reported models
Kimi K3
1456.0
Claude Opus 5
1384.0
Anthropic: Claude Fable 5 (batch)
1373.0
Claude Fable 5
1373.0
Z.ai: GLM 5.2
1366.0
Z.ai: GLM 5.1
1336.0
Anthropic: Claude Opus 4.6 (batch)
1332.0
Anthropic: Claude Opus 4.8
1278.0
Design Arena: agenticgamedev - Unversioned - eloTop 7 reported models
Anthropic: Claude Fable 5 (batch)
1296.0
Claude Fable 5
1296.0
Anthropic: Claude Opus 4.8 (batch)
1259.0
Anthropic: Claude Opus 4.8
1259.0
Anthropic: Claude Opus 4.7 (batch)
1254.0
Anthropic: Claude Opus 4.7
1254.0
Anthropic: Claude Sonnet 5 (batch)
1238.0
Design Arena: agentichtmlslides - Unversioned - eloTop 7 reported models
Anthropic: Claude Fable 5 (batch)
1254.0
Claude Fable 5
1254.0
Kimi K2.6
1248.0
Anthropic: Claude Opus 4.7 (batch)
1243.0
Anthropic: Claude Opus 4.7
1243.0
Anthropic: Claude Opus 4.8 (batch)
1227.0
Anthropic: Claude Opus 4.8
1227.0
Design Arena: agenticslides - Unversioned - eloTop 7 reported models
Anthropic: Claude Opus 4.7 (batch)
1334.0
Anthropic: Claude Opus 4.7
1334.0
Anthropic: Claude Opus 4.8 (batch)
1294.0
Anthropic: Claude Opus 4.8
1294.0
Z.ai: GLM 5.1
1245.0
Google: Gemini 3.5 Flash (batch)
1244.0
Gemini 3.5 Flash
1244.0
Design Arena: agenticslides(html) - Unversioned - eloTop 7 reported models
Anthropic: Claude Fable 5 (batch)
1252.0
Kimi K2.6
1252.0
Claude Fable 5
1252.0
Anthropic: Claude Opus 4.7 (batch)
1242.0
Anthropic: Claude Opus 4.7
1242.0
Anthropic: Claude Opus 4.8 (batch)
1230.0
Anthropic: Claude Opus 4.8
1230.0
Design Arena: agenticslides(python-pptx) - Unversioned - eloTop 7 reported models
Anthropic: Claude Opus 4.7 (batch)
1331.0
Anthropic: Claude Opus 4.7
1331.0
Anthropic: Claude Opus 4.8 (batch)
1310.0
Anthropic: Claude Opus 4.8
1310.0
Google: Gemini 3.5 Flash (batch)
1242.0
Gemini 3.5 Flash
1242.0
Z.ai: GLM 5.1
1240.0
Design Arena: androidnative - Unversioned - eloTop 7 reported models
Anthropic: Claude Opus 4.8 (batch)
1337.0
Anthropic: Claude Opus 4.8
1337.0
Anthropic: Claude Fable 5 (batch)
1306.0
Claude Fable 5
1306.0
xAI: Grok 4.5
1280.0
Kimi K2.6
1278.0
Z.ai: GLM 5V Turbo
1267.0
Design Arena: asciiart - Unversioned - eloTop 8 reported models
Anthropic: Claude Fable 5 (batch)
1364.0
Claude Fable 5
1364.0
Anthropic: Claude Opus 4.7 (batch)
1324.0
Anthropic: Claude Opus 4.7
1324.0
Muse Spark 1.1
1322.0
Google: Gemini 3.1 Pro Preview (batch)
1309.0
Gemini 3.1 Pro Preview
1309.0
Anthropic: Claude Opus 4.8
1303.0
Design Arena: codecategories - Unversioned - eloTop 8 reported models
Kimi K3
1418.0
Claude Opus 5
1358.0
Z.ai: GLM 5.2
1346.0
Anthropic: Claude Fable 5 (batch)
1340.0
Claude Fable 5
1340.0
Anthropic: Claude Opus 4.6 (batch)
1324.0
Anthropic: Claude Opus 4.6
1324.0
Anthropic: Claude Opus 4.8
1270.0
Design Arena: dataviz - Unversioned - eloTop 8 reported models
Kimi K3
1382.0
Claude Opus 5
1378.0
Z.ai: GLM 5.1
1366.0
Google: Gemini 3.6 Flash (batch)
1350.0
Gemini 3.6 Flash
1350.0
Anthropic: Claude Fable 5 (batch)
1349.0
Claude Fable 5
1349.0
Anthropic: Claude Opus 4.8
1264.0
Design Arena: fullstack - Unversioned - eloTop 7 reported models
Anthropic: Claude Opus 4.7 (batch)
1503.0
Anthropic: Claude Opus 4.7
1503.0
Anthropic: Claude Fable 5 (batch)
1293.0
Claude Fable 5
1293.0
Anthropic: Claude Opus 4.8 (batch)
1289.0
Anthropic: Claude Opus 4.8
1289.0
xAI: Grok 4.5
1282.0
Design Arena: gamedev - Unversioned - eloTop 8 reported models
Anthropic: Claude Fable 5 (batch)
1393.0
Claude Fable 5
1393.0
Z.ai: GLM 5.2
1358.0
Anthropic: Claude Sonnet 5 (batch)
1352.0
Claude Sonnet 5
1352.0
OpenAI: GPT-5.5 (batch)
1345.0
GPT-5.5
1345.0
Anthropic: Claude Opus 4.8
1299.0
Design Arena: godotgamedev - Unversioned - eloTop 8 reported models
Anthropic: Claude Fable 5 (batch)
1349.0
Claude Fable 5
1349.0
Anthropic: Claude Opus 4.7 (batch)
1270.0
Anthropic: Claude Opus 4.7
1270.0
xAI: Grok 4.5
1270.0
Anthropic: Claude Sonnet 5 (batch)
1269.0
Claude Sonnet 5
1269.0
Anthropic: Claude Opus 4.8
1254.0
Design Arena: htmlslides - Unversioned - eloTop 7 reported models
Anthropic: Claude Fable 5 (batch)
1260.0
Claude Fable 5
1260.0
Anthropic: Claude Opus 4.7 (batch)
1244.0
Anthropic: Claude Opus 4.7
1244.0
Anthropic: Claude Opus 4.8 (batch)
1239.0
Anthropic: Claude Opus 4.8
1239.0
Anthropic: Claude Sonnet 5 (batch)
1234.0
Design Arena: mobileapps - Unversioned - eloTop 7 reported models
Anthropic: Claude Opus 4.6 (batch)
1275.0
Anthropic: Claude Opus 4.6
1275.0
Anthropic: Claude Opus 4.8 (batch)
1272.0
Anthropic: Claude Opus 4.8
1272.0
Anthropic: Claude Sonnet 4.6
1267.0
Anthropic: Claude Fable 5 (batch)
1265.0
Claude Fable 5
1265.0
Design Arena: pptxslides - Unversioned - eloTop 7 reported models
Anthropic: Claude Opus 4.7 (batch)
1333.0
Anthropic: Claude Opus 4.7
1333.0
Anthropic: Claude Opus 4.8 (batch)
1306.0
Anthropic: Claude Opus 4.8
1306.0
Google: Gemini 3.5 Flash (batch)
1244.0
Gemini 3.5 Flash
1244.0
Z.ai: GLM 5.1
1241.0
Design Arena: python-pptxslides - Unversioned - eloTop 7 reported models
Kimi K3
1380.0
Anthropic: Claude Opus 4.7 (batch)
1336.0
Anthropic: Claude Opus 4.7
1336.0
Anthropic: Claude Fable 5 (batch)
1301.0
Claude Fable 5
1301.0
Anthropic: Claude Opus 4.8 (batch)
1298.0
Anthropic: Claude Opus 4.8
1298.0
Design Arena: svg - Unversioned - eloTop 8 reported models
Anthropic: Claude Fable 5 (batch)
1351.0
Claude Fable 5
1351.0
Google: Gemini 3.1 Pro Preview (batch)
1335.0
Gemini 3.1 Pro Preview
1335.0
Google: Gemini 3.5 Flash (batch)
1296.0
Gemini 3.5 Flash
1296.0
Anthropic: Claude Opus 4.6 (batch)
1276.0
Anthropic: Claude Opus 4.8
1225.0
Design Arena: uicomponent - Unversioned - eloTop 8 reported models
Kimi K3
1413.0
Claude Opus 5
1406.0
Anthropic: Claude Fable 5 (batch)
1350.0
Claude Fable 5
1350.0
Anthropic: Claude Opus 4.7 (batch)
1339.0
Anthropic: Claude Opus 4.7
1339.0
Z.ai: GLM 5.2
1334.0
Anthropic: Claude Opus 4.8
1277.0
Design Arena: webapps - Unversioned - eloTop 8 reported models
Kimi K3
1329.0
Anthropic: Claude Fable 5 (batch)
1305.0
Claude Fable 5
1305.0
Anthropic: Claude Sonnet 5 (batch)
1304.0
Claude Sonnet 5
1304.0
Anthropic: Claude Opus 4.7 (batch)
1303.0
Anthropic: Claude Opus 4.7
1303.0
Anthropic: Claude Opus 4.8
1271.0
Design Arena: website - Unversioned - eloTop 8 reported models
Kimi K3
1375.0
Claude Opus 5
1343.0
Z.ai: GLM 5.2
1340.0
Anthropic: Claude Fable 5 (batch)
1323.0
Claude Fable 5
1323.0
xAI: Grok 4.5
1323.0
Google: Gemini 3.6 Flash (batch)
1322.0
Anthropic: Claude Opus 4.8
1269.0
Intelligence Index - Unversioned - indexTop 7 reported models
Claude Opus 5
60.7
Anthropic: Claude Fable 5 (batch)
59.9
Claude Fable 5
59.9
GPT-5.6 Sol
58.9
Kimi K3
57.1
Anthropic: Claude Opus 4.8 (batch)
55.7
Anthropic: Claude Opus 4.8
55.7
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