GPT-6 Luna Pro vs Devstral 2 2512: price, context window and capabilities
GPT-6 Luna Pro (openai/gpt-6-luna-pro) is a multimodal language model from OpenAI and Devstral 2 2512 (mistralai/devstral-2512) a language model from Mistral; both are on the OceanToken API. GPT-6 Luna Pro costs less per token than Devstral 2 2512: $0.10 against $0.40 per 1M input tokens (75% less) and $0.50 against $2.00 per 1M output tokens (75% less). GPT-6 Luna Pro has the larger context window: 1.05M tokens (1,050,000) against 262K (262,144) for Devstral 2 2512. Both support tool calling, structured outputs and file input; only GPT-6 Luna Pro also lists reasoning and image input.
Side by side
| Spec | GPT-6 Luna Pro | Devstral 2 2512 |
|---|---|---|
| Model | GPT-6 Luna Proopenai/ | Devstral 2 2512mistralai/ |
| Publisher | OpenAI | Mistral |
| Kind | Text & vision | Text |
| Context window | 1.05M tokens1,050,000 | 262K tokens262,144 |
| Input price | $0.10 / 1M tokens | $0.40 / 1M tokens |
| Output price | $0.50 / 1M tokens | $2.00 / 1M tokens |
| Cached input price | $0.01 / 1M tokens | $0.04 / 1M tokens |
| Cache write price | $0.125 / 1M tokens | – |
| Web search price | $0.01 / search | – |
| Inputs | text, images and files | text and files |
| Outputs | text | text |
| Tool calling | Yes | Yes |
| Reasoning | Yes | Not listed |
| Structured outputs | Yes | Yes |
About these prices
Which should you choose?
- Choose GPT-6 Luna Pro to spend less per token: 75% less for input and 75% less for output than Devstral 2 2512.
- Choose GPT-6 Luna Pro for the longest inputs: its context window holds 1.05M tokens against 262K for Devstral 2 2512.
- Choose GPT-6 Luna Pro if you need reasoning and image input: Devstral 2 2512 does not list them.
- Not sure? Call both with the same OceanToken API key and compare them on your own prompts; each request is billed per use from one prepaid balance.
Get API Key GPT-6 Luna Pro Devstral 2 2512
Frequently asked questions
Which is cheaper, GPT-6 Luna Pro or Devstral 2 2512?
GPT-6 Luna Pro. GPT-6 Luna Pro costs less per token than Devstral 2 2512: $0.10 against $0.40 per 1M input tokens (75% less) and $0.50 against $2.00 per 1M output tokens (75% less). These are OceanToken starting prices per use; the OceanToken console always shows the current price.
Which has the larger context window, GPT-6 Luna Pro or Devstral 2 2512?
GPT-6 Luna Pro. GPT-6 Luna Pro has the larger context window: 1.05M tokens (1,050,000) against 262K (262,144) for Devstral 2 2512.
Can I call both GPT-6 Luna Pro and Devstral 2 2512 with one API key?
Yes. Both are on the OceanToken API at https://api.oceantoken.ai/v1: one API key and one prepaid balance call either model. Send the model id openai/gpt-6-luna-pro or mistralai/devstral-2512.
Models and publishers
GPT-6 Luna Pro · Devstral 2 2512 · All OpenAI models · All Mistral models
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