xAI

Grok 2

Name: Grok 2
Author: xAI

Complete specs, pricing, and benchmark data for Grok 2 by xAI. Last verified 2026-04-20.

JSON ModeFunctionsStreaming

Pricing

Input / 1M tokens

$2.00

Output / 1M tokens

$10.00

Context & Output

Context Window

131.072K

Max Output

4,096

TTFT

150ms

Speed

100 tok/s

Benchmarks

Arena ELO

1240

Coding ELO

1225

Reasoning ELO

1240

HumanEval

MMLU

MATH

112

GPQA

Start building with Grok 2

Price History (Input $/M tokens)

Strengths

Limitations

General PurposeCoding

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