Grok 4.20 Non-Reasoning

by xAI

Grok 4.20 Non-Reasoning is the speed-optimized production variant of xAI's March 2026 Grok 4.20 generation, returning direct answers without extended reasoning. It keeps a 2 million token context window and real-time integration with X data, enabling applications that need current information and low latency. The model supports native tool use, structured outputs, and image input across multimodal requests. Without the reasoning overhead of the chain-of-thought variants, the non-reasoning mode prioritizes response speed, reported at around 232 tokens per second output and roughly half-a-second time-to-first-token, making it a fit for interactive systems, support, and content generation. Released in March 2026, Grok 4.20 Non-Reasoning is xAI's high-throughput path for the 4.20 generation when you need capability, long context, and real-time grounding without the latency of reasoning steps.

Key info

Input
Output
Features
Context window
2M
Max output
30K
Input price
$2.00 /1M
Output price
$6.00 /1M
  • EU residency available
  • US residency available
  • Zero data retention via Enterprise
  • No training by default
  • GDPR DPA available

Available routes

Grok 4.20 Non-Reasoning runs on 3 different routes through the Opper gateway. Compare residency, ZDR, and training posture at a glance โ€” full data-handling detail per route below.

ProviderRegionZero data retentionTrainingInputOutput
Google CloudMultiEnterpriseNo$2.00$6.00
xAIUSEnterpriseNo$2.00$6.00
xAIEUEnterpriseNo$2.00$6.00

Training posture across routes: No training on prompts by default.

Data handling per route

Each route hosting Grok 4.20 Non-Reasoning has its own privacy posture, residency, and GDPR terms. Postures are maintained by Opper with a last-verification timestamp.

Google Cloud โ€” United States๐Ÿ‡บ๐Ÿ‡ธ

Zero data retention is available via Opper Enterprise contract. No training on customer data. US; SCCs; DPA available.

Zero data retention
Available via Opper Enterprise contract.
Training
No training on customer data.
Logging
Abuse monitoring
Third-party access
None disclosed
GDPR DPA
DPA available
Transfer mechanism
SCCs

xAI โ€” United States๐Ÿ‡บ๐Ÿ‡ธ

Zero data retention is available via Opper Enterprise contract. No training on customer data. US; SCCs; DPA available.

Zero data retention
Available via Opper Enterprise contract.
Training
No training on customer data.
Logging
Abuse monitoring (30-day retention)
Third-party access
None disclosed
GDPR DPA
DPA available
Transfer mechanism
SCCs

xAI โ€” Ireland๐Ÿ‡ฎ๐Ÿ‡ช

Zero data retention is available via Opper Enterprise contract. No training on customer data. EU; DPA available.

Zero data retention
Available via Opper Enterprise contract.
Training
No training on customer data.
Logging
Abuse monitoring (30-day retention)
Third-party access
None disclosed
GDPR DPA
DPA available
Transfer mechanism
Not applicable โ€” data stays in EU

Benchmarks

Independent benchmark scores โ€” composite indices for reasoning, coding, and math, plus individual eval scores where available.

Global rank#172 of 531 LLMs
TierEfficient
Output speed131 tok/s
First token0.42s
Intelligence Index21.8
Coding Index22.0
Reasoning & knowledge
GPQA Diamond
78%
Humanity's Last Exam
24%
Long-context reasoning
17%
Coding
SciCode
33%
Agentic & tool use
Terminal-Bench Hard
17%
ฯ„ยฒ-Bench Telecom
60%
Math & instruction following
IFBench
49%

Get started

Call Grok 4.20 Non-Reasoning through the Opper gateway with one API key. Let your coding agent set it up, or call it directly โ€” Opper is drop-in compatible with the OpenAI, Anthropic, and Google AI SDKs.

Set it up with your agent

Copy this and paste it into your coding agent โ€” Claude Code, Cursor, Codex, and more โ€” and it'll wire up Opper for you.

Or call it directly

import OpenAI from "openai";
const client = new OpenAI({
apiKey: process.env.OPPER_API_KEY,
baseURL: "https://api.opper.ai/v3/compat",
});
const completion = await client.chat.completions.create({
model: "xai/grok-4.20-non-reasoning",
messages: [{ role: "user", content: "Hello" }],
});
console.log(completion.choices[0].message.content);

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Grok 4.20 Non-Reasoning by xAI โ€” pricing, benchmarks, EU/US hosting | Opper AI