Claude Opus 4.7 vs GPT-5.5

Pick two tools from the same category to compare side-by-side.

	Claude Opus 4.7 Anthropic's deepest-reasoning model; planning, complex synthesis.	GPT-5.5 OpenAI's flagship frontier model, positioned as a new class of intelligence for coding and professional work.
Category	model	model
Vendor type	commercial	commercial
Pricing	usage	usage
Strengths	+ Deepest reasoning of the Claude family + Best for ambiguous, planning-heavy tasks	+ OpenAI's recommended model for complex reasoning and coding + 1M-token context window with up to 128K output tokens + Generally available via the OpenAI API with listed pricing of $5 input / $30 output per million tokens
Tradeoffs	− Highest cost tier — not viable as default model − Higher latency than Sonnet / Haiku	− Most expensive tier in OpenAI's lineup; GPT-5.4 is positioned as the more affordable option for similar work − API-only commercial model; no open weights
Used in stacks	6	0