GPT-6.1 Terra Pro pricing & price history
GPT-6.1 Terra Pro by OpenAI costs $1.00 per 1M input tokens and $5.00 per 1M output tokens, with a 1.1M token context window. The cheapest provider currently charges $0.50 input / $2.50 output.
Price history
No price changes since tracking began on 2026-10-27. We check every 10 minutes.
Which platform runs GPT-6.1 Terra Pro most reliably
2 platformsBy 30-day real-traffic success rate, OpenAI is the most stable and also the cheapest.
| Platform | Last 30 days | Stability | 24 h | 30 min | |
|---|---|---|---|---|---|
| OpenAI official most stable | Consistently stableavg 100.00% | 100% | 100% | ||
| Azure | Consistently stableavg 100.00% | — | — |
Success rates come from real API traffic routed to each platform (public OpenRouter data), not our probes; each daily bar is the average of that day's samples. Green ≥ 99.5 %, yellow ≥ 97 %, orange ≥ 90 %, red < 90 %. Updated 53m ago.
Cost calculator
Cheaper alternatives to GPT-6.1 Terra Pro
| Model | Input | Output | Context | Intel. | |
|---|---|---|---|---|---|
GLM 5.3 Flash Z.ai (Zhipu) | $0.0163 | $0.15 | 1M | 27.8 | compare |
MiniMax M3.1 Flash MiniMax | $0.075 | $0.30 | 1M | 28.9 | compare |
Llama 4 Scout Meta Llama | $0.10 | $0.30 | 1.3M | — | compare |
DeepSeek V4.1 Flash DeepSeek | $0.045 | $0.50 | 1M | — | compare |
MiMo-V2.6-Flash Xiaomi | $0.14 | $0.28 | 1.1M | 26.7 | compare |
Llama Guard 4 12B Meta Llama | $0.18 | $0.18 | 164K | — | compare |
Claude Haiku 5.5 Anthropic | $0.10 | $0.50 | 1M | 36.2 | compare |
GPT-6 Luna Pro OpenAI | $0.10 | $0.50 | 1.1M | — | compare |
About GPT-6.1 Terra Pro
GPT-6.1 Terra Pro is the same underlying model as [GPT-6.1 Terra](https://openrouter.ai/openai/gpt-6.1-terra), served with `reasoning.mode` set to `pro` for higher-quality responses on complex tasks. **Cost note:** pro mode spends far more...
FAQ
How much does GPT-6.1 Terra Pro cost?
GPT-6.1 Terra Pro by OpenAI costs $1.00 per 1M input tokens and $5.00 per 1M output tokens, with a 1.1M token context window. The cheapest provider currently charges $0.50 input / $2.50 output. A typical request with 2,000 input and 500 output tokens costs about $0.0045.
What is the context window of GPT-6.1 Terra Pro?
GPT-6.1 Terra Pro supports up to 1,050,000 tokens of context and up to 128,000 output tokens per request.
Has GPT-6.1 Terra Pro’s price changed?
No price changes recorded since ModelBank started tracking it on 2026-10-27.
Is GPT-6.1 Terra Pro being deprecated?
No retirement date has been announced for GPT-6.1 Terra Pro as of 2026-10-31.
What are cheaper alternatives to GPT-6.1 Terra Pro?
Cheaper options include GLM 5.3 Flash ($0.0163/$0.15), MiniMax M3.1 Flash ($0.075/$0.30), Llama 4 Scout ($0.10/$0.30), DeepSeek V4.1 Flash ($0.045/$0.50).