// x-ai

SpaceXAI: Grok Build 0.1

x-ai/grok-build-0.1

reasoningtool callingimage inputfile inputprompt caching
OpenRouter + LiveBenchAll 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. On LiveBench it scores 67.8 overall — #48 of 55 benchmarked models — and ranks highest in instruction following (#35).

Input / 1M
$1.00
Output / 1M
$2.00
Context
256K
LiveBench overall
67.8 · #48

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 — #120 most expensive of 343 listed models

$1.25
Cached input read

Blank means not priced separately — not free

$0.200
Cache write
Context window256,000 tokens
Max output230,400 tokens
Input modalitiestext, image, file
Tool callingYes
Extended reasoningYes
Knowledge cutoff
ListedMay 20, 2026
All SpaceXAI API pricing

Benchmarks by category

LiveBench scores out of 100, with SpaceXAI: Grok Build 0.1's rank among the 55 benchmarked models listed here. Run: grok-build-0.1.

Overall#48 of 55
67.8

$0.0144 measured per point

45.8

$0.1351 measured per point

Coding#55 of 55
65.4

$0.0008 measured per point

Reasoning#47 of 55
76.4

$0.0014 measured per point

Mathematics#53 of 55
78.4

$0.0019 measured per point

Data analysis#38 of 55
70.8

$0.0030 measured per point

Language#49 of 55
72.5

$0.0009 measured per point

65.2

$0.0007 measured per point

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.

WorkloadPer 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
Price your own workload

Compare SpaceXAI: Grok Build 0.1 with

The benchmarked models closest to it on overall score.

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?

On LiveBench release 2026-06-25 (run: grok-build-0.1), SpaceXAI: Grok Build 0.1 scores 67.8 overall, ranking #48 of 55 benchmarked models.

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 ranksLiveBench release 2026-06-25. 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.