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Grok 4.3

Grok 4.3 — xAI fast reasoning model with 1M context, function calling, structured outputs, vision, and web/X search.

grok-4.3
Catalog preview. Paid requests for this model are not enabled yet.

Pricing

~99%

USD. No uRouter markup. Live prices can change.

Input
$0.012375 / 1,000,000 tokens
Output
$0.02475 / 1,000,000 tokens
Cache read
$0.00198 / 1,000,000 tokens
Cache write
$0.012375 / 1,000,000 tokens
How pricing works

Model details

Input
text, image
Output
text
Context window
1,000,000 tokens
Maximum output
128,000 tokens
Availability
$7.6KUncapped capacity
Updated
11/8/2026, 1:49:20 AM UTC

Capacity is reserved when your request is accepted.

Price history

Observed best prices · Last 24 hours · UTC

$0.012375/ 1,000,000 tokens
$0.0111375$0.012375$0.0136125Nov 7, 11:53 PMNov 8, 01:49 AM

Capabilities

chatstreamingtoolsvisionreasoning
Supported parameters
max_tokenstemperaturetop_pfrequency_penaltypresence_penaltylogit_biaslogprobstop_logprobsstoptoolstool_choiceresponse_formatseedstructured_outputs

Listed capabilities describe the model. uRouter execution support is verified separately.