LLMcompare

Search

Search for a command to run...

A · closed · Grok

Grok 4.3

xAI

B · closed · Grok

Grok 4.5

xAI

1:11

overall capability wins (1 ties across 13 scored). Grok 4.5 leads overall.

  • Reasoning0:6
  • Coding0:3
  • Arena0:1
  • Tool use0:1
  • Composite indices0:2
  • Pricing3:0
  • Speed2:0
  • Specs1:0

Verdict

Grok 4.5 leads coding (widest gap: +197.9 on WebDev Elo); Grok 4.5 ranks higher on LMArena (+25 Elo); Grok 4.3 offers ~2.0x larger context (1M vs 500K).

  • Grok 4.5 leads coding (widest gap: +197.9 on WebDev Elo)
  • Grok 4.5 ranks higher on LMArena (+25 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 4.5

Cost for 1M in + 250K out

Illustrative chat workload at primary-provider list prices.

Grok 4.3
$1.88
Grok 4.5
$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

Jul 9, 2026

Knowledge cutoff

2026-02-01

-

API / provider

xAI

xAI

Modalities

text, image → text

text, image → text

Specs

Context window

1M

500K

A +500K

Max output

128K

128K

tie

Parameters

—

—

—

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

100

A +10

TTFT (s)

0.3

0.35

A +0.05

Reasoning

MMLU-Pro

—

—

—

GPQA Diamond

90.1

93.1

B +3.0 pts

Humanity's Last Exam

37.2

42.7

B +5.5 pts

AIME 2025

—

—

—

MATH-500

—

—

—

Humanity's Last Exam (with tools)

—

—

—

AA-Omniscience Accuracy

34.8

51.6

B +16.8 pts

AA-LCR v1.1

73.0

79.3

B +6.3 pts

CritPt

8.0

15.4

B +7.4 pts

MMMU-Pro

78.1

80.4

B +2.3 pts

IFBench

81.3

—

—

Chartography

—

—

—

Chartography (With Tools)

—

—

—

Coding

SWE-bench Verified

—

—

—

SWE-bench Pro

—

—

—

SWE-bench Multilingual

—

—

—

LiveCodeBench

—

—

—

Terminal-Bench 2.1

39.7

81.6

B +41.9 pts

Aider Polyglot

—

—

—

Terminal-Bench 3

—

15.7

—

BigCodeBench

—

—

—

SciCode

48.3

55.0

B +6.7 pts

CursorBench

—

—

—

SWE-Rebench

—

63.8

—

NL2Repo-Bench

—

—

—

DeepSWE

—

—

—

WebDev Arena

1,357

1,555

B +198 Elo

Terminal-Bench 4.0

—

12.4

—

CursorBench 4.0

—

—

—

FrontierCode v1.1 (Main)

—

—

—

Arena

LMArena Elo

1,443

1,468

B +25 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 4.5

Context
500K / 128K out
Parameters
—
Price
$2 / $6
Speed
100 tok/s · 0.35s TTFT
Modalities
text, image → text
License
Proprietary

xAI/SpaceXAI public API flagship (July 2026) - Cursor-trained coding focus at $2/$6. For the Cursor IDE jointly-trained SKU and Fast tier, see Cursor Grok 4.5.

Benchmark charts

Winner bars are emphasized. Per-benchmark deltas sit above each chart.

Reasoning & knowledge

GPQA: B +3.0HLE: B +5.5CritPt: B +7.4AA-LCR: B +6.3Omniscience Acc.: B +16.8MMMU-Pro: B +2.3

Coding

TermBench: B +41.9SciCode: B +6.7WebDev Elo: B +198

Tool use & function calling

τ³-Banking: B +29.7

Arena

Arena Elo: B +25

Composite indices

AA Index: B +20.1AA Index v4.3: B +13.7

Pick a different pair · Back to catalog