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Claude Opus 4.8

Top Claude Opus tier for the hardest reasoning, coding, and long-horizon agents

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Core capabilities

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Claude Opus 4.8 FAQ

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Claude Opus 4.8

anthropic/claude-opus-4-8

Top Claude Opus tier for the hardest reasoning, coding, and long-horizon agents

Model family

Claude

-

Focus areas

AI safetyGeneral-purpose models

Core specifications

Released
2026-05-28
Context window
1M
Max output
128K
Weights
Closed

Modalities

Input
DocumentImageText
Output
Text

Identity

Version
claude-opus-4-8
Knowledge cutoff
2026-01
Aliases
Claude Opus 4.8

Capabilities

AttachmentsReasoningTool call

Pricing

IN $5/M
OUT $25/M
Read $0.5/M
Write $6.25/M

Capabilities and fit

Model summary

Top Claude Opus tier for the hardest reasoning, coding, and long-horizon agents

Text
AttachmentsReasoningTool call
Output
Text
Capabilities
3
Catalog updated
2026-06-11T00:00:00.000Z
Status

Benchmark results

BenchmarkTypeScore / rankEvaluated
SWE-Bench ProCoding69.22026-05-28T00:00:00.000Z
Terminal-BenchCoding74.62026-05-28T00:00:00.000Z
SWE-Bench VerifiedCoding88.62026-08-05T03:37:00.044Z
Humanity's Last ExamGeneral49.82026-06-09T00:00:00.000Z
Humanity's Last ExamGeneral57.92026-06-09T00:00:00.000Z
OSWorld-VerifiedGeneral83.42026-06-09T00:00:00.000Z
FrontierCodeCoding13.42026-06-09T00:00:00.000Z

Provider coverage

ProviderInputOutputPricing
CrossModel
IN $5/M
OUT $25/M
Read $0.5/M
Write $6.25/M
Snowflake Cortex
IN $5/M
OUT $25/M
Read $0.5/M
Write $6.25/M
Poe
IN $5/M
OUT $25/M
Read $0.5/M
Write $6.25/M
NanoGPT
IN $5/M
OUT $25/M
Read $0.5/M
Write $6.25/M
FastRouter
IN $5/M
OUT $25/M
Read $0.5/M
Write $6.25/M
DaoXE
IN $5/M
OUT $25/M
Read $0.5/M
Write $6.25/M
LLM Gateway
IN $5/M
OUT $25/M
Read $0.5/M
Write $6.25/M
Kenari
IN $5/M
OUT $25/M
Read $0.5/M
Write $6.25/M
OpenCode Zen
IN $5/M
OUT $25/M
Read $0.5/M
Write $6.25/M
GitHub Copilot
IN $5/M
OUT $25/M
Read $0.5/M
Write $6.25/M
Neon
IN $5/M
OUT $25/M
Read $0.5/M
Write $6.25/M
UnoRouter
IN $5/M
OUT $25/M
Read $0.5/M
Write $6.25/M
Pioneer
IN $5/M
OUT $25/M
Read $0.5/M
Write $6.25/M
ZenMux
IN $5/M
OUT $25/M
Read $0.5/M
Write $6.25/M
Abacus
IN $5/M
OUT $25/M
Read $0.5/M
Write $6.25/M
Azure Cognitive Services
IN $5/M
OUT $25/M
Read $0.5/M
Write $6.25/M
Venice AI
IN $5/M
OUT $25/M
Read $0.5/M
Write $6.25/M
Model Oracle AI
IN $5/M
OUT $25/M
Read $0.5/M
Write $6.25/M
Azure
IN $5/M
OUT $25/M
Read $0.5/M
Write $6.25/M
AIHubMix
IN $5/M
OUT $25/M
Read $0.5/M
Write $6.25/M
Ofox
IN $5/M
OUT $25/M
Read $0.5/M
Write $6.25/M
routing.run
IN $5/M
OUT $25/M
Read $0.5/M
Write $6.25/M
GMI Cloud
IN $5/M
OUT $25/M
Read $0.5/M
Write $6.25/M
FreeModel
IN $5/M
OUT $25/M
Read $0.5/M
Write $6.25/M
Merge Gateway
IN $5/M
OUT $25/M
Read $0.5/M
Write $6.25/M
Modelis
IN $5/M
OUT $25/M
Read $0.5/M
Write $6.25/M
Vercel AI Gateway
IN $5/M
OUT $25/M
Read $0.5/M
Write $6.25/M
OpenRouter
IN $5/M
OUT $25/M
Read $0.5/M
Write $6.25/M
Anthropic
IN $5/M
OUT $25/M
Read $0.5/M
Write $6.25/M
Cloudflare AI Gateway
IN $5/M
OUT $25/M
Read $0.5/M
Write $6.25/M
Xpersona
IN $5/M
OUT $25/M
Read $0.5/M
Write $6.25/M
Kilo Gateway
Claude Opus 4.8
IN $5/M
OUT $25/M
Read $0.5/M
Write $6.25/M

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