Grok Build 0.1
xAI released 2026-05-20 proprietary
Gemini 3.7 Flash is both better and cheaper.
It scores +15.3 higher and costs 40% less ($0.750/M against $1.25/M) on this workload — and it does everything this model does.
DeepSeek V4 Flash 0731 is cheaper still (92% less) but drops no image, file input.
Every price dimension
| Input | $1.00/M |
|---|---|
| Output | $2.00/M |
| Cached input | $0.200/M |
| Web search | $0.005/call |
Past 200,000 tokens the price changes. Input goes to $2.00/M (2×) and output to $4.00/M. The headline rate does not apply to a long-context workload.
Independent scores
| Intelligence | 40.7 |
|---|---|
| Coding | 51.5 |
| Agentic | 28.9 |
Sources are listed separately rather than averaged. Across the 62 models both have scored they correlate at r = 0.806 — close agreement overall, but four models rank very differently between them, and a blended score would hide exactly those.
Capability
| Context window | 256K |
|---|---|
| Input modes | text, image, file |
| Tool use | yes |
| Reasoning | always on |
| Open weights | no |
Provenance
| Price source | openrouter.ai |
|---|---|
| Fetched | 2026-08-24 |
| Quality data | verified |
| Cross-checked | vendor page |
Grok Build 0.1 is SpaceXAI’s fast coding model trained specifically for agentic software engineering workflows. It supports text and image inputs with text output, and is optimized for interactive coding...