GPT-6.1 Terra Pro Pricing: Is the New OpenAI Model Worth It?
GPT-6.1 Terra Pro from OpenAI was listed on OpenRouter on 2026-10-26. It costs $1 per 1M input tokens and $5 per 1M output tokens, with 1.1M context. 25 other OpenAI models cost less per token, so test whether the new one earns its price on your work.
By Aniruddh Panvalkar価格確認日 Oct 27, 2026
プランと価格
GPT-6.1 Terra Pro
$1 input / $5 output per 1M tokens1.1M context on OpenRouter (openai/gpt-6.1-terra-pro). 1M input plus 1M output tokens: $6.
最適な用途
Teams evaluating the newest release on their own tasks before switching.
不向きな用途
Switching production traffic before it has passed the same tests as your current model.
gpt-oss-20b
$0.018 input / $0.09 output per 1M tokens131K context on OpenRouter (openai/gpt-oss-20b). 1M input plus 1M output tokens: $0.11.
最適な用途
The cheapest OpenAI option to benchmark the new model against.
不向きな用途
Tasks the newer model handles and this one does not.
Prices are OpenRouter's listed per-token prices, read from the OpenRouter models API and checked 2026-10-27. New models often change price in their first weeks; buying direct can be priced differently.
Should you switch to GPT-6.1 Terra Pro?
Run your own prompts through it next to the model you use today and compare the cost per accepted answer, not the cost per token. Switch only the workloads where it wins.
正確なコストを計算する →GPT-6.1 Terra Proに過剰に支払っているのは誰？
- Teams moving all traffic to GPT-6.1 Terra Pro on launch day without a side-by-side test
- Anyone paying flagship prices for work an older, cheaper model already does well
- Buyers who ignore output-token prices, which usually dominate the bill
Sources
このペーじの価格は、ベンダーの価格ペーじとカタログエントリと照合して確認されています。
- openai.com/business/chatgpt-pricing
- openai.com/chatgpt/pricing
- openrouter.ai/api/v1/models
- openrouter.ai/openai/gpt-6.1-terra-pro
- openrouter.ai/openai/gpt-4-turbo
- openrouter.ai/openai/gpt-4o
- openrouter.ai/openai/gpt-4o-mini
- openrouter.ai/openai/gpt-5.4
- openrouter.ai/openai/gpt-5.4-mini
- openrouter.ai/openai/gpt-5.5
- openrouter.ai/openai/gpt-5.5-pro
- openrouter.ai/openai/o3
よくある質問
How much does GPT-6.1 Terra Pro cost?
$1 per 1M input tokens and $5 per 1M output tokens on OpenRouter (checked 2026-10-27).
When was GPT-6.1 Terra Pro released?
OpenRouter listed it on 2026-10-26.
Is GPT-6.1 Terra Pro worth it?
Only if it passes your tasks more often than a cheaper model does. Measure cost per accepted answer with the AI Cost Calculator.