Claude Opus 4.7
Stronger Opus tier for advanced software work and high-stakes reasoning
ECI STANDING#18 of 266
SCORE156.34154.57–158.5 CI
FRONTIER LAGLaunched 2.3 months behindScores about what GPT-5.3 Codex did in February 2026.
SCORES LIKE THESE MODELSGemini 3.8 FlashGoogle DeepMind · Sep 2026156.54Grok 4.6xAI · Aug 2026156.35GPT-5.6 LunaOpenAI · Jul 2026156.31Claude Sonnet 5Anthropic · Jun 2026156.22
Full Epoch Capabilities Index ranking ↗From the lab
Launch announcement · Apr 16, 2026Released Claude Opus 4.7RELEASE DATEApr 16, 2026
WEIGHTSClosed weights
CONTEXT WINDOW1M
MAX OUTPUT128K
REASONINGYes
TOOL CALLINGYes
INPUTStext, image, pdf
OUTPUTStext
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