vs
1:10
overall capability wins (0 ties across 11 scored). Grok 4.6 leads overall.
- Reasoning0:5
- Coding0:3
- Arena0:1
- Tool use0:1
- Composite indices0:2
- Pricing3:0
- Specs1:0
Verdict
Grok 4.6 leads coding (widest gap: +260.4 on WebDev Elo); Grok 4.6 ranks higher on LMArena (+13 Elo); Grok 4.3 offers ~2.0x larger context (1M vs 500K).
- Grok 4.6 leads coding (widest gap: +260.4 on WebDev Elo)
- Grok 4.6 ranks higher on LMArena (+13 Elo)
- Grok 4.3 offers ~2.0x larger context (1M vs 500K)
- Grok 4.3 is ~1.9x cheaper on a blended token basis than Grok 4.6
Cost for 1M in + 250K out
Illustrative chat workload at primary-provider list prices.
- Grok 4.3
- $1.88
- Grok 4.6
- $3.50
Grok 4.3 is about 1.9x cheaper on this workload.
Price per 1M tokens
Full comparison
Organization
xAI
xAI
Family
Grok
Grok
License
Proprietary
Proprietary
Open weights
No
No
Release
Jun 15, 2026
Aug 12, 2026
Knowledge cutoff
2026-02-01
2026-02-01
API / provider
xAI
xAI
Modalities
text, image → text
text, image → text
Specs
Context window
1M
500K
Max output
128K
-
Parameters
—
1.5T
Pricing
Input $/1M
$1.25
$2
Output $/1M
$2.50
$6
Blended $/1M (3∶1)
$1.56
$3
Speed
tok/s
110
-
TTFT (s)
0.3
-
Reasoning
MMLU-Pro
—
—
GPQA Diamond
90.1
94.9
Humanity's Last Exam
37.2
42.9
AIME 2025
—
—
MATH-500
—
—
Humanity's Last Exam (with tools)
—
—
AA-Omniscience Accuracy
34.8
48.2
AA-LCR v1.1
73.0
80.3
CritPt
8.0
17.1
MMMU-Pro
78.1
—
IFBench
81.3
—
Chartography
—
—
Chartography (With Tools)
—
—
Coding
SWE-bench Verified
—
—
SWE-bench Pro
—
—
SWE-bench Multilingual
—
—
LiveCodeBench
—
—
Terminal-Bench 2.1
39.7
88.4
Aider Polyglot
—
—
Terminal-Bench 3
—
26.5
BigCodeBench
—
—
SciCode
48.3
56.5
CursorBench
—
70.8
SWE-Rebench
—
—
NL2Repo-Bench
—
—
DeepSWE
—
67.0
WebDev Arena
1,357
1,618
Terminal-Bench 4.0
—
20.3
CursorBench 4.0
—
—
FrontierCode v1.1 (Main)
—
—
Arena
LMArena Elo
1,443
1,456
| Metric | Grok 4.3 | Grok 4.6 | Delta |
|---|---|---|---|
| Identity | |||
| Organization | xAI | xAI | — |
| Family | Grok | Grok | — |
| License | Proprietary | Proprietary | — |
| Open weights | No | No | — |
| Release | Jun 15, 2026 | Aug 12, 2026 | — |
| Knowledge cutoff | 2026-02-01 | 2026-02-01 | — |
| API / provider | xAI | xAI | — |
| Modalities | text, image → text | text, image → text | — |
| Specs | |||
| Context window | 1M | 500K | A +500K |
| Max output | 128K | - | — |
| Parameters | — | 1.5T | — |
| Pricing | |||
| Input $/1M | $1.25 | $2 | A +$0.75 |
| Output $/1M | $2.50 | $6 | A +$3.50 |
| Blended $/1M (3∶1) | $1.56 | $3 | A +$1.44 |
| Speed | |||
| tok/s | 110 | - | — |
| TTFT (s) | 0.3 | - | — |
| Reasoning | |||
| MMLU-Pro | — | — | — |
| GPQA Diamond | 90.1 | 94.9 | B +4.8 pts |
| Humanity's Last Exam | 37.2 | 42.9 | B +5.7 pts |
| AIME 2025 | — | — | — |
| MATH-500 | — | — | — |
| Humanity's Last Exam (with tools) | — | — | — |
| AA-Omniscience Accuracy | 34.8 | 48.2 | B +13.4 pts |
| AA-LCR v1.1 | 73.0 | 80.3 | B +7.3 pts |
| CritPt | 8.0 | 17.1 | B +9.1 pts |
| MMMU-Pro | 78.1 | — | — |
| IFBench | 81.3 | — | — |
| Chartography | — | — | — |
| Chartography (With Tools) | — | — | — |
| Coding | |||
| SWE-bench Verified | — | — | — |
| SWE-bench Pro | — | — | — |
| SWE-bench Multilingual | — | — | — |
| LiveCodeBench | — | — | — |
| Terminal-Bench 2.1 | 39.7 | 88.4 | B +48.7 pts |
| Aider Polyglot | — | — | — |
| Terminal-Bench 3 | — | 26.5 | — |
| BigCodeBench | — | — | — |
| SciCode | 48.3 | 56.5 | B +8.2 pts |
| CursorBench | — | 70.8 | — |
| SWE-Rebench | — | — | — |
| NL2Repo-Bench | — | — | — |
| DeepSWE | — | 67.0 | — |
| WebDev Arena | 1,357 | 1,618 | B +260 Elo |
| Terminal-Bench 4.0 | — | 20.3 | — |
| CursorBench 4.0 | — | — | — |
| FrontierCode v1.1 (Main) | — | — | — |
| Arena | |||
| LMArena Elo | 1,443 | 1,456 | B +13 Elo |
Grok 4.3
- Context
- 1M / 128K out
- Parameters
- —
- Price
- $1.25 / $2.50
- Speed
- 110 tok/s · 0.3s TTFT
- Modalities
- text, image → text
- License
- Proprietary
Fast tool-calling Grok with 1M context at $1.25/$2.50 (doubles above 200k prompt tokens); aliased as grok-latest.
Grok 4.6
- Context
- 500K
- Parameters
- 1.5T
- Price
- $2 / $6
- Speed
- —
- Modalities
- text, image → text
- License
- Proprietary
xAI/SpaceXAI's August 2026 flagship (1.5T-parameter) tuned for long-running agents and ambitious interactive/visual work — 500k context at $2/$6, matches GPT-5.6 Sol on the Artificial Analysis Intelligence Index (61). A fast variant is available at 2x price.
Benchmark charts
Winner bars are emphasized. Per-benchmark deltas sit above each chart.