GPT-5.6 Terra — reviews, specs & pricing
Balances intelligence and cost in the GPT-5.6 family. 1.05M context, $2.50/$15 per 1M tokens.
Summary
GPT-5.6 Terra is a balanced powerhouse within OpenAI's latest model family, engineered to deliver a cost-effective blend of advanced intelligence and efficiency for text and code tasks. Armed with an impressive 1.05-million token context window, it allows developers to process vast amounts of information simultaneously without incurring prohibitive costs. It represents a highly competitive middle-ground option for enterprise-grade automation and deep analytical processing.
Sample use case
A software development firm can leverage GPT-5.6 Terra to automate the auditing and refactoring of legacy codebases. By feeding entire repositories and years of documentation into its massive 1.05M context window, engineering teams can instantly identify architectural flaws, generate comprehensive unit tests, and receive precise modernization recommendations. This significantly accelerates the development lifecycle while maintaining a highly predictable budget due to the model's cost-efficient pricing structure.
Specifications
- Provider: openai
- License: closed
- Context: 1050k tokens
- Input price: $2.5/M tok
- Output price: $15/M tok
Pros
- Massive 1.05M token context window
- Excellent cost-to-performance ratio
- Strong capabilities in coding and chat
- More affordable than premium frontier models
Cons
- No multimodal vision or audio support
- High output token cost relative to inputs
- Potential latency spikes with full context usage
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