Qwen3.8 27B vs Grok 4.3: price, context window and capabilities
Qwen3.8 27B (qwen/qwen3.8-27b) from Qwen and Grok 4.3 (x-ai/grok-4.3) from SpaceXAI are both multimodal language models on the OceanToken API. Qwen3.8 27B costs less for input: $0.425 against $1.25 per 1M input tokens (66% less); Grok 4.3 costs less for output: $2.50 against $2.55 per 1M output tokens (2% less). Qwen3.8 27B has the larger context window: 1.02M tokens (1,024,000) against 1M (1,000,000) for Grok 4.3. Both support tool calling, reasoning, structured outputs and image input; only Qwen3.8 27B also lists video input; only Grok 4.3 also lists file input.
Side by side
| Spec | Qwen3.8 27B | Grok 4.3 |
|---|---|---|
| Model | Qwen3.8 27Bqwen/ | Grok 4.3x- |
| Publisher | Qwen | SpaceXAI |
| Kind | Text, vision & video | Text & vision |
| Context window | 1.02M tokens1,024,000 | 1M tokens1,000,000 |
| Input price | $0.425 / 1M tokens | $1.25 / 1M tokens |
| Output price | $2.55 / 1M tokens | $2.50 / 1M tokens |
| Cached input price | $0.085 / 1M tokens | $0.20 / 1M tokens |
| Cache write price | $0.531 / 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?
- Price depends on the mix: Qwen3.8 27B costs less for input and Grok 4.3 for output, so estimate both on your own volume of input tokens and output tokens.
- Choose Qwen3.8 27B for the longest inputs: its context window holds 1.02M tokens against 1M for Grok 4.3.
- Choose Qwen3.8 27B if you need video input: Grok 4.3 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 27B Grok 4.3
Frequently asked questions
Which is cheaper, Qwen3.8 27B or Grok 4.3?
It depends on the mix of tokens. Qwen3.8 27B costs less for input: $0.425 against $1.25 per 1M input tokens (66% less); Grok 4.3 costs less for output: $2.50 against $2.55 per 1M output tokens (2% less). These are OceanToken starting prices per use; the OceanToken console always shows the current price.
Which has the larger context window, Qwen3.8 27B or Grok 4.3?
Qwen3.8 27B. Qwen3.8 27B has the larger context window: 1.02M tokens (1,024,000) against 1M (1,000,000) for Grok 4.3.
Can I call both Qwen3.8 27B and Grok 4.3 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/qwen3.8-27b or x-ai/grok-4.3.
Models and publishers
Qwen3.8 27B · Grok 4.3 · All Qwen models · All SpaceXAI models
More comparisons
Qwen3.8 27B vs Claude Sonnet 5.5 · Qwen3.8 27B vs Claude Opus 5.5 · Qwen3.8 27B vs Claude Fable 5.1 · Qwen3.8 27B vs Claude Opus 5 · All comparisons