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Side-by-side

Claude Sonnet 4.6 vs Claude Opus 4.7

Anthropic vs Anthropic — head-to-head specs and pricing.

Anthropic
Claude Sonnet 4.6

Balanced speed + capability.

Sonnet is Anthropic's balanced model for general agents and chat.

Anthropic
Claude Opus 4.7

Anthropic's most capable model.

Claude Opus is Anthropic's flagship — top-tier reasoning, agentic behavior, 1M context window, native tool use.

SpecClaude Sonnet 4.6Claude Opus 4.7
ProviderAnthropicAnthropic
Input cost / 1M tokens$3.60$18.00
Output cost / 1M tokens$18.00$90.00
Context window200,000 tokens1,000,000 tokens
Max output tokens16,00032,000
Streaming support
Tool calling
Vision input
JSON mode
StatusACTIVEACTIVE

Use both via OneAPIKey — one key, one bill

OneAPIKey aggregates Anthropic, Anthropic, and 10 more providers behind a single API. Smart Routing automatically picks the best model per request — or you choose explicitly.