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Grok 4.3

API ID grok-4.3

grok-4.3 is an xAI model, released April 2026. Standard price: from $1.25 input and from $2.50 output per 1M tokens.

Status
Active
Released
April 2026
Shutdown
none announced
Replacement
—

No deprecation or shutdown date has been announced as of October 15, 2026.

Benchmarks

Scores as each source published them
or

Comparing with Grok 4 (0709), the previous model in this line. A score is compared only with the same benchmark from the same source, at the same setting where both have it. Full comparison: prices, limits, features

Arena

ArenaGrok 4.3Grok 4 (0709)ChangeRankDateSource
Text
By category
  • Math 1418 rank 131 vs 1425 (−7, within range)
  • Creative writing 1422 rank 82 vs 1394 (+28)
  • Instruction following 1415 rank 123 vs 1396 (+19)
  • Hard prompts 1456 rank 107 vs 1420 (+36)
  • Long prompts 1443 rank 103 vs 1416 (+27)
  • Multi-turn 1447 rank 97 vs 1413 (+34)
  • Expert 1453 rank 112 vs 1429 (+24)
1442 ±41411 ±4+3194 of 415
71,387 votes		Oct 13, 2026source
Text: Coding1488 ±61435 ±7+53100 of 410
19,960 votes		Oct 13, 2026source
WebDev1357 ±6not rated109 of 142
15,006 votes		Oct 13, 2026source
Vision1243 ±61184 ±7+5963 of 165
27,037 votes		Oct 9, 2026source
Search1193 ±51123 ±6+7025 of 42
128,393 votes		Oct 13, 2026source

Rated as grok-4.3; Grok 4 (0709) as grok-4-0709. Ratings come from people voting between two anonymous answers; Text, Vision and Search are style-controlled, as on arena.ai. Data: Arena (arena.ai), CC BY 4.0.

Epoch AI

BenchmarkGrok 4.3Grok 4 (0709)ChangeSettingRunSource
FrontierMath Tier 414.6%not runhigh effortJun 17, 2026source
FrontierMath Tiers 1-342.8%not runhigh effortJun 17, 2026source
GPQA Diamond88.8%87.0%+1.8 ptshigh effort (vs no setting)Jun 17, 2026source
OTIS Mock AIME 2024-202593.3%84.0%+9.3 ptshigh effort (vs no setting)Jun 17, 2026source
SimpleQA Verified33.2%not runhigh effortAug 27, 2026source

Run independently by Epoch AI. Data: Epoch AI, Capabilities & benchmarking (epoch.ai/benchmarks), CC BY.

On cloud platforms

All platform dates
PlatformPlatform IDStateShutdownTime leftReplacementSource
Amazon Bedrockxai.grok-4.3Activenot before Jun 15, 2027—source

Read daily from each platform's own pages. The shutdown date and countdown on this page use xAI's own date.

Price history

USD per 1M tokens, standard tier
$0.00$1.00$2.00$3.00Oct 2026In $1.25Out $2.50Oct 5, 2026 to Oct 15, 2026: Input $1.25, Output $2.50
$0.00$1.00$2.00$3.00Oct 2026In $1.25Out $2.50Oct 5, 2026 to Oct 15, 2026: Input $1.25, Output $2.50

We started recording this model's prices on Oct 5, 2026. The history grows with each daily check.

Show as a table
FromTypePrice
Oct 5, 2026Input$1.25
Oct 5, 2026Output$2.50

Prices

USD per 1M tokens, every type and band, by tier
TypeBandPrice $/1MIn effect
Standard
inputup to 200k prompt$1.25
inputover 200k prompt$2.50
cached inputup to 200k prompt$0.20
cached inputover 200k prompt$0.40
outputup to 200k prompt$2.50
outputover 200k prompt$5.00

Changelog

Changes we detected on xAI's pages

No changes recorded yet.

Email alerts

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Last checked · Sources: xAI pricing, xAI notices, xAI release notes