Gemini 4 Argon
Claude Opus 5.5
Muse Wonder
MiMo-V2.6-Pro
Qwen3.8-Max
Kimi K3
GLM-5.3
GPT-5.5
ERNIE 5.1
DeepSeek-V4.1-Flash-20260910
amazon-nova-experimental-chat
Dola Seed 2.0 Pro
NVIDIA-Nemotron-3-Ultra-550B-A55B
Gemma 4 31B
Step 5 Preview
Grok Build 0.1
Grok Build 0.1 is a proprietary model from xAI, released May 20, 2026. Its best result is #93 of 115 on Vibe Code Bench with 13.35%. It costs $1 per million input tokens and $2 per million output tokens, with a 250K-token context window.
- Developer
- xAI
- Released
- May 20, 2026
- Context window
- 250K
- Price in / out, per 1M tokens
- $1 / $2
- Weights
- Proprietary
- Inputs
- Text, Images, Files
- Reasoning
- Yes
- Tool use
- Yes
Benchmarks
| Benchmark | Score bar | Accuracy | Rank | Cost / test |
|---|---|---|---|---|
| Vibe Code BenchCoding | 13.35% | 93 / 115 | N/A |
Vals AI, as of Oct 24, 2026.
Compare Grok Build 0.1
xAI
The lab behind Grok, trained on one of the largest compute clusters and integrated with X. Founded 2023, based in San Francisco Bay Area. x.ai
Questions
Who makes Grok Build 0.1?
Grok Build 0.1 is made by xAI, founded 2023 and based in San Francisco Bay Area.
How much does Grok Build 0.1 cost?
$1 per million input tokens and $2 per million output tokens, at its provider’s list price.
What is Grok Build 0.1’s context window?
250K tokens (256,000).
Is Grok Build 0.1 open source?
No. Grok Build 0.1 is proprietary and served through its provider’s API.