Patchwire

xAI · Released May 20, 2026

Grok Build 0.1

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...

ReasoningVision
  • Top 50%SciCode
Compare in showdown → OpenRouter ↗ All xAI models
Released
May 20 2026
Context window
256K 230K out
Input / 1M tokens
$1.00
Output / 1M tokens
$2.00

Where to run it

Providers

Cheapest: xAI at $1.00 / $2.00 per 1M input / output tokens — 50% less than the priciest option.

ProviderInputOutputCache readContextMax outputUptimevs. best
xAI $1.00 $2.00 $0.20256K230K100%24h Cheapest
xAIzdr $1.00 $2.00 $0.20256K230K100%24h Cheapest
xAIzdr/priority $2.00 $4.00 $0.40256K230K100%24h +100%
xAIpriority $2.00 $4.00 $0.40256K230K— +100%

Value

Price vs. performance

1 model scores higher for the same price or lesson GBAEval, e.g. Kimi K3.
0.0%26.5%53.1%79.6% $0.10$1.00$10.00 Claude Opus 5 (Anthropic) — 79.6% · $5.00/1M in Kimi K3 (Moonshot AI) — 48.4% · $0.24/1M in Muse Spark 1.1 (Meta) — 7.9% · $1.25/1M in GPT-5.6 Sol (OpenAI) — 52.6% · $4.00/1M in Claude Sonnet 5 (Anthropic) — 65.3% · $2.00/1M in GLM 5.2 (Z.ai) — 0.0% · $0.62/1M in Kimi K2.7 Code (Moonshot AI) — 0.9% · $0.67/1M in Claude Fable 5 (Anthropic) — 74.5% · $10.00/1M in MiniMax M3 (MiniMax) — 0.9% · $0.30/1M in Claude Opus 4.8 (Anthropic) — 70.9% · $5.00/1M in Qwen3.7 Max (Qwen) — 0.4% · $1.48/1M in Gemini 3.5 Flash (Google) — 6.7% · $1.50/1M in GPT-5.5 (OpenAI) — 53.2% · $5.00/1M in Kimi K2.6 (Moonshot AI) — 0.9% · $0.65/1M in Claude Opus 4.7 (Anthropic) — 43.8% · $5.00/1M in GLM 5.1 (Z.ai) — 0.0% · $0.97/1M in MiniMax M2.7 (MiniMax) — 0.0% · $0.30/1M in GPT-5.4 (OpenAI) — 45.1% · $2.50/1M in Gemini 3.1 Pro Preview (Google) — 0.9% · $2.00/1M in Claude Sonnet 4.6 (Anthropic) — 48.8% · $3.00/1M in Claude Opus 4.6 (Anthropic) — 44.1% · $5.00/1M in Grok 4.5 (xAI) — 65.4% · $2.00/1M in Grok Build 0.1 (xAI) — 2.4% · $1.00/1M in Grok Build 0.1

Grok Build 0.1 Other xAI Other labs Value frontier · GBAEval vs. input price per 1M tokens (log scale) · Drag to pan, pinch or Ctrl + scroll to zoom, double-click to zoom in.

Benchmarks

3 benchmark scores

BenchmarkScoreRankLeader
GBAEvalSoftware engineering · Build a Game Boy Advance emulator from scratch 2.4% #15of 23 Claude Opus 579.6%
SciCodeSoftware engineering · Research-coding problems from the natural sciences 50.2% #46of 93 Claude Opus 5.566.9%
CritPtReasoning & knowledge · Open-ended, research-level physics problems 9.1% #53of 96 GPT-5.6 Sol32.3%

Specs

Details

Model ID
x-ai/grok-build-0.1
Developer
xAI
Release date
May 20, 2026 ·
Context window
256,000 tokens
Max output
230,400 tokens
API price
$1.00 / $2.00 per 1M input / output tokens
Providers
1
Input types
text, image, file
Reasoning
Yes
Tool calling
Yes
Open weights
No
Free tier
No

Release date, prices and providers from OpenRouter's catalog; buying directly from a provider can cost a little differently. Uptime is the share of OpenRouter requests each provider served over the last day. Benchmark scores are the best result per benchmark from Epoch AI, licensed CC BY 4.0. Rank counts every model tracked here with a score.