Qwen3.8 Flash vs Devstral 2 2512: price, context window and capabilities
Qwen3.8 Flash (qwen/qwen3.8-flash) is a multimodal language model from Qwen and Devstral 2 2512 (mistralai/devstral-2512) a language model from Mistral; both are on the OceanToken API. Qwen3.8 Flash costs less per token than Devstral 2 2512: $0.143 against $0.40 per 1M input tokens (64% less) and $0.447 against $2.00 per 1M output tokens (78% less). Qwen3.8 Flash has the larger context window: 984K tokens (983,616) against 262K (262,144) for Devstral 2 2512. Both support tool calling and structured outputs; only Qwen3.8 Flash also lists reasoning, image input and video input; only Devstral 2 2512 also lists file input.
Side by side
| Spec | Qwen3.8 Flash −25% | Devstral 2 2512 |
|---|---|---|
| Model | Qwen3.8 Flashqwen/ | Devstral 2 2512mistralai/ |
| Publisher | Qwen | Mistral |
| Kind | Text, vision & video | Text |
| Context window | 984K tokens983,616 | 262K tokens262,144 |
| Input price | $0.143 / 1M tokens | $0.40 / 1M tokens |
| Output price | $0.447 / 1M tokens | $2.00 / 1M tokens |
| Cached input price | $0.016 / 1M tokens | $0.04 / 1M tokens |
| Cache write price | $0.20 / 1M tokens | – |
| Discount (vs official, top tier) | −25% | — |
| Inputs | text, images and video | 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 Qwen3.8 Flash to spend less per token: 64% less for input and 78% less for output than Devstral 2 2512.
- Choose Qwen3.8 Flash for the longest inputs: its context window holds 984K tokens against 262K for Devstral 2 2512.
- Choose Qwen3.8 Flash if you need reasoning, image input and video 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 Qwen3.8 Flash Devstral 2 2512
Frequently asked questions
Which is cheaper, Qwen3.8 Flash or Devstral 2 2512?
Qwen3.8 Flash. Qwen3.8 Flash costs less per token than Devstral 2 2512: $0.143 against $0.40 per 1M input tokens (64% less) and $0.447 against $2.00 per 1M output tokens (78% less). These are OceanToken starting prices per use; the OceanToken console always shows the current price.
Which has the larger context window, Qwen3.8 Flash or Devstral 2 2512?
Qwen3.8 Flash. Qwen3.8 Flash has the larger context window: 984K tokens (983,616) against 262K (262,144) for Devstral 2 2512.
Can I call both Qwen3.8 Flash 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 qwen/qwen3.8-flash or mistralai/devstral-2512.
Models and publishers
Qwen3.8 Flash · Devstral 2 2512 · All Qwen models · All Mistral models
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