Last checked 27 Oct 2026
GPT-6.1 Terra vs Mistral Large 4
GPT-6.1 Terra is billed by OpenAI. Mistral Large 4 is billed by Mistral. A pair is two models from different providers whose higher published input rate is at most 1.5 times the lower one, and whose higher published output rate is at most 1.5 times the lower one. Closer rates are listed first. Each model is in at most 2 pairs, and the list stops at 12. The figures below are the rates stored on those two rows, the differences between them, and the cost of one sample workload. This page does not score quality.
Stored rates
GPT-6.1 Terra (OpenAI, Standard, under 272K) and Mistral Large 4 (Mistral, Standard). Provider pages: OpenAI and Mistral.
| Field | GPT-6.1 Terra | Mistral Large 4 |
|---|---|---|
| Input / 1M | $1.00 | $1.36 |
| Cached input / 1M | $0.05 | $0.14 |
| Output / 1M | $5.00 | $4.18 |
| Rate | Standard, under 272K | Standard |
| Context | 1.05M | 1M |
| Max output | 128k | n/a |
| Status | Active | Preview |
| Modalities | text, image → text | n/a |
| Released | 26 Oct 2026 | 6 Oct 2026 |
| Checked | 27 Oct 2026 | 27 Oct 2026 |
| Per request | $0.006 | $0.006064 |
| Per month | $180.00 | $181.92 |
Sample workload
The sample is the calculator's starting workload: 2,000 input tokens and 800 output tokens per request, 1,000 requests a day. A month in the calculator is 30 days, so that is 30,000 requests. The cost uses the stored input and output rates only. Cache hits, batch discounts, long-context surcharges, peak hours, and prices scheduled after an introductory window are not included. The rate label and the notes below name those other published rates.
GPT-6.1 Terra is $0.006 per request and $180.00 per month ($60.00 input and $120.00 output over the month). Mistral Large 4 is $0.006064 per request and $181.92 per month ($81.60 input and $100.32 output over the month).
GPT-6.1 Terra costs $1.92 less per month than Mistral Large 4 on this sample, using the stored rates above.
Open GPT-6.1 Terra in the calculatorOpen Mistral Large 4 in the calculator
Notes from the sources
GPT-6.1 Terra
Standard, under 272K
Short-context standard rate for prompts under 272K tokens. The same pricing table lists long-context rates of $2 input, $0.10 cached input, and $7.50 output per 1M tokens. Batch and Flex are half of standard. Context window 1.05M and max output 128K are from the OpenAI API model list.
Mistral Large 4
Standard
Standard USD rates from the API pricing table. The model card lists a 1M context window and Public Preview status, dated 6 October 2026. The changelog's launch note said 50% off for two weeks from that date; the pricing page on the check date shows the rates recorded here. Max output and a modality list were not in the text extracted from those pages. The card describes the model as multimodal with a vision encoder.