GPT-6.1 Terra
GPT-6.1 Terra is OpenAI's value tier in the GPT-6.1 family, added to the official pricing page on October 28, 2026. It costs $1.00 input / $5.00 output per 1M tokens at short context (up to 272K input tokens) and $2.00 / $7.50 above that, with cached input at $0.05 and $0.10 respectively. That makes it 50% cheaper than GPT-6.1 Sol on both input and output. Batch and Flex tiers are half price and the Fast tier is double, offering only the short-context tier.
Best For
Strengths
- 50% cheaper than GPT-6.1 Sol on input and output
- 1.05M token context window with 128K max output
- Cached input at just 5% of the input price
- Batch and Flex at half price
- Native multimodal input
Weaknesses
- Long-context pricing doubles above 272K input tokens
- No Ultrafast tier (gpt-6.1-sol only)
- Newer model with a smaller ecosystem than GPT-5.6
Related Alternatives
GPT-6.1 Sol
2x the price for the top tier
GLM-5.3-Flash
Natively multimodal at CNY 0.8 per 1M input
Frequently Asked Questions
How much does GPT-6.1 Terra cost?
$1.00 input / $5.00 output per 1M tokens at short context (up to 272K input tokens), and $2.00 / $7.50 above 272K. Cached input is $0.05 and $0.10 respectively. Batch and Flex are half price ($0.50 / $2.50); the Fast tier is double ($2.00 / $10.00) and short-context only.
How does GPT-6.1 Terra compare to GPT-6.1 Sol?
Terra is the value tier of the same family. It is 50% cheaper than Sol on both input ($1.00 vs $2.00) and output ($5.00 vs $10.00) at short context. Sol additionally offers an Ultrafast processing tier at $12.00 / $60.00 that Terra does not have.
See GPT-6.1 Terra's full record in our database
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