Claude Opus 5 vs GPT-5.6 Terra: pricing, specs & reviews compared

Side-by-side comparison of Claude Opus 5 (anthropic) and GPT-5.6 Terra (openai) — pricing per million tokens, context length, licensing, benchmarks and community reviews on Reviuws.

SpecClaude Opus 5GPT-5.6 Terra
Provideranthropicopenai
Licenseclosedclosed
Parameters
Context1000k1050k
Input price / M tok$5$2.5
Output price / M tok$25$15
Rating0.0 (0)0.0 (0)