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Is GPT-5.6 Terra dumber today?
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How smart does it feel today?
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| Day | Lobotomized | Dumb | Meh | Solid | Big brain |
|---|
GPT-5.6 Terra discussions
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What GPT-5.6 Terra costs
- Input
- $2.00 /1M tokens
- Output
- $12.00 /1M tokens
- Cached input
- $0.20 /1M tokens
- Context window
- 1.05M tokens
- Released
- July 9, 2026
Batch API: 50% off input and output.
| 1,000 chat messages1,500 tokens in, 500 out each | $9.00 |
|---|---|
| Summarize a 50-page PDF30,000 tokens in, 1,000 out | $0.072 |
| One coding-agent task60,000 tokens in, 4,000 out, no caching | $0.168 |
Checked September 28, 2026. Official pricing · Status page
Latest from OpenAI
- GPT-6 Sol and Luna releasedSep 22 · Release
- OpenAI status: elevated errors across ChatGPT and CodexSep 3 · Official incident
- GPT-6 Astra releasedSep 3 · Release
- OpenAI cuts GPT-5.6 Terra and Luna pricesJul 30 · Release
All news → · Prices re-checked September 28, 2026.
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GPT-5.6 Terra: common questions
How much does GPT-5.6 Terra cost?
Through the OpenAI API, GPT-5.6 Terra costs $2.00 per million input tokens and $12.00 per million output tokens, with cached input at $0.20. That works out to about $9.00 for 1,000 typical chat messages. Prices checked September 28, 2026. The Batch API halves both prices.
Is GPT-5.6 Terra dumber today?
The rating at the top of this page shows how people who used GPT-5.6 Terra today rate it, from Lobotomized to Big brain, and the chart shows the last 30 days next to releases and official incidents. Ratings are opinions, not a benchmark. For outages, check the OpenAI status page.
What is GPT-5.6 Terra's context window?
GPT-5.6 Terra accepts up to 1.05M tokens of input in one request.
When was GPT-5.6 Terra released?
OpenAI released GPT-5.6 Terra on July 9, 2026. See every release and incident on the news page.
What are cheaper alternatives to GPT-5.6 Terra?
Among mid-tier models, Gemini 3.8 Flash ($3.00 per 1,000 chats), DeepSeek V4 Pro ($3.96 per 1,000 chats), Claude Sonnet 5 ($8.00 per 1,000 chats) cost less for a typical chat workload. Compare everything in the cost calculator.
