stepfun
SpaceXAI: Grok Build 0.1 vs Step 5 Preview
58.6 overall · $1.43 / 1M
// x-ai
SpaceXAI: Grok Build 0.1
x-ai/grok-build-0.1
reasoningtool callingimage inputfile inputprompt caching
OpenRouter + LiveBenchSpaceXAI: Grok Build 0.1 alternativesEmbed this modelAll modelsFull leaderboard
SpaceXAI: Grok Build 0.1 costs $1.00 per 1M input tokens and $2.00 per 1M output tokens with a 256K-token context window.
A reasoning, tool-calling model from x-ai, released May 20, 2026. LiveBench hasn't published a run for it, so this page carries measured price and specs only — no benchmark numbers.
- Input / 1M
- $1.00
- Output / 1M
- $2.00
- Context
- 256K
- LiveBench overall
- Not evaluated
Specs and pricing
| Input price USD per 1M prompt tokens | $1.00 |
|---|---|
| Output price USD per 1M completion tokens, reasoning included | $2.00 |
| Blended price 3:1 input:output — #127 most expensive of 350 listed models | $1.25 |
| Cached input read Blank means not priced separately — not free | $0.200 |
| Cache write | — |
| Context window | 256,000 tokens |
| Max output | 230,400 tokens |
| Input modalities | text, image, file |
| Tool calling | Yes |
| Extended reasoning | Yes |
| Knowledge cutoff | — |
| Listed | May 20, 2026 |
What SpaceXAI: Grok Build 0.1 costs to run
Monthly list cost across five workload shapes, using the published cached-input rate where there is one. A floor, not a quote — batch discounts and cache writes aren't included.
| Workload | Per month |
|---|---|
| Support chatbot 1.2K in / 400 out × 200K requests | $342.40/mo |
| RAG assistant 8K in / 600 out × 100K requests | $600.00/mo |
| Coding agent 40K in / 4K out × 20K requests | $512.00/mo |
| Document extraction 20K in / 1.5K out × 50K requests | $1,110/mo |
| Bulk classification 500 in / 20 out × 5M requests | $2,300/mo |
Compare SpaceXAI: Grok Build 0.1 with
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SpaceXAI: Grok Build 0.1 vs Inkling
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SpaceXAI: Grok Build 0.1 vs GPT-6.1 Terra
77.8 overall · $2.00 / 1M
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SpaceXAI: Grok Build 0.1 vs Muse Spark Open
51.6 overall · $2.00 / 1M
SpaceXAI: Grok Build 0.1 FAQ
How much does SpaceXAI: Grok Build 0.1 cost?
SpaceXAI: Grok Build 0.1 lists at $1.00 per 1M input tokens and $2.00 per 1M output tokens, with cached input reads at $0.200 per 1M. A RAG assistant handling 100K requests a month (8K tokens in, 600 out) comes to about $600.00 at list price.
What is the context window of SpaceXAI: Grok Build 0.1?
SpaceXAI: Grok Build 0.1 accepts up to 256,000 tokens of context and can return up to 230,400 output tokens per response.
Does SpaceXAI: Grok Build 0.1 support tool calling?
Yes — SpaceXAI: Grok Build 0.1 supports tool (function) calling and exposes extended reasoning. It accepts text, image, file input.
How does SpaceXAI: Grok Build 0.1 score on benchmarks?
LiveBench has not published a run for SpaceXAI: Grok Build 0.1 yet. Until it does, compare it on price and specs, or run your own evaluation on your own tasks.
What is the API model ID for SpaceXAI: Grok Build 0.1?
On OpenRouter the model ID is "x-ai/grok-build-0.1". It was listed on May 20, 2026.
More from x-ai
How these numbers are produced
- Price and specs — provider list data from OpenRouter, refreshed every 15 minutes. “Blended” is a 3:1 input:output mix.
- Scores and ranks — LiveBench release 2026-10-25. Ranks count only models that have a published run; a blank means “not evaluated”, never “bad”.
- Cost per point — the measured dollars LiveBench spent on the run, divided by the score it earned.
Published benchmarks rank models on someone else's tasks. Before committing, see LLM & agent evaluation for building an eval on your own.