Intelligence index
Outperforms 70% of compared models
Grok 4.20
Grok 4.20 is a reasoning model from SpaceXAI with industry-leading speed and agentic tool calling capabilities. It combines the lowest hallucination rate on the market with strict prompt adherance, delivering consistently precise and truthful responses.
Reasoning can be enabled/disabled using the reasoning enabled parameter in the API. Learn more in our docs
- Input / output price
- $1.25/$2.5per 1M tokens
- Context
- 2.0M
- Released
- 2026-03-31
Pricing
Artificial Analysis
Explore rankingsDesign Arena
Elo scores and win rates across design and agent tasks.
Category performance
1,000-1,500 EloModel Arena
Asciiart
1172Elo
Win rate 48.2%
SVG
1161Elo
Win rate 52.4%
3D
1190Elo
Win rate 52.1%
Data Visualization
1217Elo
Win rate 52%
Website
1228Elo
Win rate 51.8%
Code Categories
1219Elo
Win rate 51.8%
Game Development
1191Elo
Win rate 50.1%
UI Component
1194Elo
Win rate 49%
Agent Arena
Htmlslides
1180Elo
Win rate 45.7%
Godotgamedev
1089Elo
Win rate 38.5%
Webapps
1144Elo
Win rate 49.7%
Fullstack
1054Elo
Win rate 41.1%
Androidnative
1045Elo
Win rate 35%
Mobile Apps
1090Elo
Win rate 45.4%
Related Models
Grok 4.7
x-aiGrok 4.7 is SpaceXAI's flagship model for coding, agentic tasks, and knowledge work, succeeding Grok 4.6. It is particularly strong at long-running software engineering tasks, verifying its own work, and managing long context, and it improves on its predecessor at professional knowledge work such as drafting documents and presentations. The model was trained with a longer reinforcement learning run weighted toward problems that take many hours to complete, and natively understands the Grok Bot harness for conversational tasks. It ships with a new safeguard stack that pairs strong jailbreak resistance with low refusal rates for legitimate cybersecurity and biology work. SpaceXAI's reported benchmark results use the xhigh reasoning effort.
- Context
- 500K
- Max output
- 450K
- Released
- 2026-09-21
- Input
- $2/M
- Output
- $6/M
- Cache read
- $0.5/M
Grok 4.6
x-aiGrok 4.6 is a model from SpaceXAI with frontier performance on coding, knowledge work, and STEM. It is succeeded by Grok 4.7.
- Context
- 500K
- Max output
- 450K
- Released
- 2026-08-12
- Input
- $2/M
- Output
- $6/M
- Cache read
- $0.5/M
Grok 4.5
x-aiGrok 4.5 is a model from SpaceXAI with frontier performance on coding, knowledge work, and STEM.
- Context
- 500K
- Max output
- 450K
- Released
- 2026-07-08
- Input
- $2/M
- Output
- $6/M
- Cache read
- $0.3/M