vs
0:6
overall capability wins (0 ties across 6 scored). Grok 4.3 leads overall.
- Reasoning0:2
- Coding0:1
- Arena0:1
- Pricing0:3
- Speed0:2
- Specs0:2
Verdict
Grok 4.3 leads coding (widest gap: +19.8 on SciCode); Grok 4.3 ranks higher on LMArena (+107 Elo); Grok 4.3 offers ~7.6x larger context (1M vs 131K).
- Grok 4.3 leads coding (widest gap: +19.8 on SciCode)
- Grok 4.3 ranks higher on LMArena (+107 Elo)
- Grok 4.3 offers ~7.6x larger context (1M vs 131K)
- Grok 4.3 allows ~15.6x more max output (128K vs 8K)
- Grok 4.3 is ~2.6x cheaper on a blended token basis than Grok 2
Cost for 1M in + 250K out
Illustrative chat workload at primary-provider list prices.
- Grok 2
- $4.50
- Grok 4.3
- $1.88
Grok 4.3 is about 2.4x cheaper on this workload.
Price per 1M tokens
Full comparison
Organization
xAI
xAI
Family
Grok
Grok
License
Proprietary
Proprietary
Open weights
No
No
Release
Aug 13, 2024
Jun 15, 2026
Knowledge cutoff
-
2026-02-01
API / provider
xAI
xAI
Modalities
text, image → text
text, image → text
Specs
Context window
131K
1M
Max output
8K
128K
Parameters
—
—
Pricing
Input $/1M
$2
$1.25
Output $/1M
$10
$2.50
Blended $/1M (3∶1)
$4
$1.56
Speed
tok/s
70
110
TTFT (s)
0.45
0.3
Reasoning
MMLU-Pro
—
—
GPQA Diamond
51.0
90.1
Humanity's Last Exam
3.1
37.2
AIME 2025
—
—
MATH-500
—
—
Humanity's Last Exam (with tools)
—
—
AA-Omniscience Accuracy
—
34.8
AA-LCR v1.1
—
73.0
CritPt
—
8.0
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
Aider Polyglot
—
—
Terminal-Bench 3
—
—
BigCodeBench
—
—
SciCode
28.5
48.3
CursorBench
—
—
SWE-Rebench
—
—
NL2Repo-Bench
—
—
DeepSWE
—
—
WebDev Arena
—
1,357
Terminal-Bench 4.0
—
—
CursorBench 4.0
—
—
FrontierCode v1.1 (Main)
—
—
Arena
LMArena Elo
1,336
1,443
| Metric | Grok 2 | Grok 4.3 | Delta |
|---|---|---|---|
| Identity | |||
| Organization | xAI | xAI | — |
| Family | Grok | Grok | — |
| License | Proprietary | Proprietary | — |
| Open weights | No | No | — |
| Release | Aug 13, 2024 | Jun 15, 2026 | — |
| Knowledge cutoff | - | 2026-02-01 | — |
| API / provider | xAI | xAI | — |
| Modalities | text, image → text | text, image → text | — |
| Specs | |||
| Context window | 131K | 1M | B +869K |
| Max output | 8K | 128K | B +120K |
| Parameters | — | — | — |
| Pricing | |||
| Input $/1M | $2 | $1.25 | B +$0.75 |
| Output $/1M | $10 | $2.50 | B +$7.50 |
| Blended $/1M (3∶1) | $4 | $1.56 | B +$2.44 |
| Speed | |||
| tok/s | 70 | 110 | B +40 |
| TTFT (s) | 0.45 | 0.3 | B +0.15 |
| Reasoning | |||
| MMLU-Pro | — | — | — |
| GPQA Diamond | 51.0 | 90.1 | B +39.1 pts |
| Humanity's Last Exam | 3.1 | 37.2 | B +34.1 pts |
| AIME 2025 | — | — | — |
| MATH-500 | — | — | — |
| Humanity's Last Exam (with tools) | — | — | — |
| AA-Omniscience Accuracy | — | 34.8 | — |
| AA-LCR v1.1 | — | 73.0 | — |
| CritPt | — | 8.0 | — |
| 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 | — |
| Aider Polyglot | — | — | — |
| Terminal-Bench 3 | — | — | — |
| BigCodeBench | — | — | — |
| SciCode | 28.5 | 48.3 | B +19.8 pts |
| CursorBench | — | — | — |
| SWE-Rebench | — | — | — |
| NL2Repo-Bench | — | — | — |
| DeepSWE | — | — | — |
| WebDev Arena | — | 1,357 | — |
| Terminal-Bench 4.0 | — | — | — |
| CursorBench 4.0 | — | — | — |
| FrontierCode v1.1 (Main) | — | — | — |
| Arena | |||
| LMArena Elo | 1,336 | 1,443 | B +107 Elo |
Grok 2
- Context
- 131K / 8K out
- Parameters
- —
- Price
- $2 / $10
- Speed
- 70 tok/s · 0.45s TTFT
- Modalities
- text, image → text
- License
- Proprietary
xAI's 2024 multimodal flagship with Flux image gen — predecessor to the Grok 3 / 4 line.
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.
Benchmark charts
Winner bars are emphasized. Per-benchmark deltas sit above each chart.