Qwen3.8 Max Prime vs Grok Build 0.1: price, context window and capabilities
Qwen3.8 Max Prime (qwen/qwen3.8-max-prime) from Qwen and Grok Build 0.1 (x-ai/grok-build-0.1) from SpaceXAI are both multimodal language models on the OceanToken API. Grok Build 0.1 costs less per token than Qwen3.8 Max Prime: $1.00 against $4.00 per 1M input tokens (75% less) and $2.00 against $12.00 per 1M output tokens (83% less). Qwen3.8 Max Prime has the larger context window: 984K tokens (983,616) against 256K (256,000) for Grok Build 0.1. Both support tool calling, reasoning, structured outputs and image input; only Qwen3.8 Max Prime also lists video input; only Grok Build 0.1 also lists file input.
Side by side
| Spec | Qwen3.8 Max Prime | Grok Build 0.1 |
|---|---|---|
| Model | Qwen3.8 Max Primeqwen/ | Grok Build 0.1x- |
| Publisher | Qwen | SpaceXAI |
| Kind | Text, vision & video | Text & vision |
| Context window | 984K tokens983,616 | 256K tokens256,000 |
| Input price | $4.00 / 1M tokens | $1.00 / 1M tokens |
| Output price | $12.00 / 1M tokens | $2.00 / 1M tokens |
| Cached input price | $0.50 / 1M tokens | $0.20 / 1M tokens |
| Web search price | – | $0.005 / search |
| Inputs | text, images and video | text, images and files |
| Outputs | text | text |
| Tool calling | Yes | Yes |
| Reasoning | Yes | Yes |
| Structured outputs | Yes | Yes |
About these prices
Which should you choose?
- Choose Grok Build 0.1 to spend less per token: 75% less for input and 83% less for output than Qwen3.8 Max Prime.
- Choose Qwen3.8 Max Prime for the longest inputs: its context window holds 984K tokens against 256K for Grok Build 0.1.
- Choose Qwen3.8 Max Prime if you need video input: Grok Build 0.1 does not list it.
- 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 Max Prime Grok Build 0.1
Frequently asked questions
Which is cheaper, Qwen3.8 Max Prime or Grok Build 0.1?
Grok Build 0.1. Grok Build 0.1 costs less per token than Qwen3.8 Max Prime: $1.00 against $4.00 per 1M input tokens (75% less) and $2.00 against $12.00 per 1M output tokens (83% less). These are OceanToken starting prices per use; the OceanToken console always shows the current price.
Which has the larger context window, Qwen3.8 Max Prime or Grok Build 0.1?
Qwen3.8 Max Prime. Qwen3.8 Max Prime has the larger context window: 984K tokens (983,616) against 256K (256,000) for Grok Build 0.1.
Can I call both Qwen3.8 Max Prime and Grok Build 0.1 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-max-prime or x-ai/grok-build-0.1.
Models and publishers
Qwen3.8 Max Prime · Grok Build 0.1 · All Qwen models · All SpaceXAI models
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