Grok model for agentic tool use, reasoning, coding, and live assistance
Specification
xai listing
Context
1M
Max output
1M
Released
2026-03-31
Knowledge cutoff
2025-09-01
Retires
—
Open weights
no
Input
text, image
Output
text
Price
US dollars per million tokens · xai list price
Input
$1.25
Output
$2.50
Cache read
$0.20
Long-context price tiers
the rate above each context threshold
| Above | Price | $/M |
|---|---|---|
| 200K | Cache read | $0.40 |
| 200K | Input | $2.50 |
| 200K | Output | $5.00 |
Quality
6 benchmarks · 1 source
Composite
69th
percentile of 334 scored models
Rank
104 / 334
±0.07 sd
Evidence
6 × 1
one source, or fewer than 3 benchmarks
Effort range
—
one configuration only
reasoning89th2/4 bench
math66th3/7 bench
knowledge25th1/1 bench
Every score
one row per source and configuration — nothing averaged away
| Benchmark | Score | Configuration | Source | Run |
|---|---|---|---|---|
| OTIS Mock AIME 2024-2025 | 92.2 ±3.3 | default | Epoch AI | 2026-07-13 |
| GPQA diamond | 89.3 ±1.9 | default | Epoch AI | 2026-07-13 |
| Chess Puzzles | 24.0 ±4.3 | default | Epoch AI | 2026-07-13 |
| FrontierMath-Tiers-1-3-v2 | 44.9 ±3.0 | default | Epoch AI | 2026-07-13 |
| SimpleQA Verified | 30.2 ±1.5 | default | Epoch AI | 2026-08-27 |
| FrontierMath-Tier-4-v2 | 17.1 ±5.9 | default | Epoch AI | 2026-07-13 |
The leading figure for a benchmark is the median across its configurations, so one heroic high-effort run cannot set the number.
Available from 8 hosts
| Host | In $/M | Out $/M | Cache rd | Cache wr | Context | Output | Retires |
|---|---|---|---|---|---|---|---|
| xaivendor | $1.25 | $2.50 | $0.20 | — | 1M | 1M | — |
| kilo · x-ai | $1.25 | $2.50 | $0.20 | — | 2M | 1.8M | — |
| openrouter | $1.25 | $2.50 | $0.20 | — | 1M | 1M | — |
| openrouter · x-ai | $1.25 | $2.50 | $0.20 | — | 2M | 1.8M | — |
| venice | $1.42 | $2.83 | $0.23 | — | 2M | 128K | — |
| nano-gpt · x-ai | $2.00 | $6.00 | $1.00 | — | 2M | 131K | — |
| oci · oci | $3.00 | $15.00 | — | — | 131K | 131K | — |
| ofox · x-ai | $4.00 | $12.00 | $0.40 | — | 2M | 128K | — |
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