OpenAI
GPT-5.6 Terra
OpenAI's July 9, 2026 GPT-5.6 model balancing intelligence and cost. Supports text and image input, text output and adjustable reasoning effort, with a 1.05M-token context window and up to 128K output. API prices fell 20% on July 30 to $2 input and $12 output per million tokens; cached input is $0.20. Above 272K input tokens, the full request costs 2x input and 1.5x output rates. Cache writes cost 1.25x the uncached input rate.
- Provider
- OpenAI
- Context
- 1MCatalog · As of Aug 11, 2026Stale · 31d old
- yno subscription tier
- Pro
- Released
- Jul 9, 2026
- Speed
- Medium
- Reasoning
- Expert
- Modality
- Multimodal
Benchmarks
Quality
- AA Intelligence Index
- AA Coding Index
- GPQA Diamond
- 92.5%Artificial Analysis · Date unknownAge unknown
Speed and latency
- Output speed
- 103.11tokens/sConfiguration: Prompt length: 1,000 · Parallel queries: 1Artificial Analysis · Date unknownAge unknown
- Time to first token
- 108.55sConfiguration: Prompt length: 1,000 · Parallel queries: 1Artificial Analysis · Date unknownAge unknown
- Time to first answer token
- 108.55sConfiguration: Prompt length: 1,000 · Parallel queries: 1Artificial Analysis · Date unknownAge unknown
API pricing
- API input cost
- API output cost
Benchmark variant: GPT-5.6 Terra (max)
AA data retrieved Sep 11, 2026 · Artificial Analysis
Indexes use points; evaluations use accuracy percentages. API measurements do not measure yno application performance. Methodology
Capabilities
- Code
- Reasoning
- Agentic
- Tool Use
- Vision
Use cases
- Default production workloads
- Coding
- Agentic workflows
- Cost-efficient reasoning
Strengths
- 1.05M context / 128K output
- Text and image input
- Adjustable reasoning effort
- 90% cache-read discount
Best for
Teams balancing model capability and API cost in GPT-5.6 production workloads
No credit card required
Related models
Frequently asked
- What is GPT-5.6 Terra?
- OpenAI's July 9, 2026 GPT-5.6 model balancing intelligence and cost. Supports text and image input, text output and adjustable reasoning effort, with a 1.05M-token context window and up to 128K output. API prices fell 20% on July 30 to $2 input and $12 output per million tokens; cached input is $0.20. Above 272K input tokens, the full request costs 2x input and 1.5x output rates. Cache writes cost 1.25x the uncached input rate.
- How much does GPT-5.6 Terra cost in yno.ai?
- GPT-5.6 Terra is available on the Pro tier of yno.ai.
- What can GPT-5.6 Terra do?
- GPT-5.6 Terra is best for Teams balancing model capability and API cost in GPT-5.6 production workloads. Its main capabilities include Code, Reasoning, Agentic, Tool Use, Vision.
- How does GPT-5.6 Terra compare to other models?
- GPT-5.6 Terra excels at 1.05M context / 128K output and is recommended for Default production workloads, Coding, Agentic workflows, Cost-efficient reasoning. See related models below.
- How do I use GPT-5.6 Terra in yno.ai?
- Sign up for yno.ai, select GPT-5.6 Terra from the model picker, and start chatting.