Grok 4.3 is xAI's language model with a 1.0M context window and up to 900K output tokens, available from 8 providers, starting at $1.25 / 1M input and $2.50 / 1M output. A multimodal reasoning LLM from xAI that accepts text and image inputs, designed for agentic workflows, instruction-following, and tool-use tasks requiring high factual accuracy.
Specifications
Canonical IDxai-grok-4-3
TypeLanguage
StatusActive
CreatorxAIxAI
Providers
Context Window1.0M tokens
Max Output900K tokens
Input ModalitiesImagePDFText
Output ModalitiesText
Reasoning Effortsdefault
Release Date · 6 months ago
Benchmarks
Intelligence Index
#121
Coding Index
#94
GPQA
#42
HLE
#58
IFBench
#1
Time to First Token
#360
SciCode
#74
LCR
#90
TerminalBench Hard
#54
TAU2
#11
Output TPS
#112

Capabilities

Input3/5
Text✓
Image✓
Audio·
Video·
PDF✓
Output1/5
Text✓
Image·
Audio·
Video·
Embedding·
Capabilities6/13
Reasoning✓
Adaptive Reasoning·
Function Calling✓
Parallel Function Calling·
Structured Outputs✓
Native JSON Schema✓
Web Search✓
URL Context·
Computer Use·
Code Execution·
File Search·
Prompt Caching✓
Assistant Prefill·

Pricing by Provider

US Dollar ($)
Per 1M tokens
ProviderStandardFlexFastLong contextBatch
Input
$ / 1M
Output
$ / 1M
Cache Read
$ / 1M
Web Search
$ / request
Input
$ / 1M
Output
$ / 1M
Cache Read
$ / 1M
Input
$ / 1M
Output
$ / 1M
Cache Read
$ / 1M
Input
$ / 1M
Output
$ / 1M
Input
$ / 1M
Output
$ / 1M
Cache Read
$ / 1M
Web Search
$ / request
Amazon Bedrock logo
Amazon Bedrock
bedrock_mantle/us-gov-west-1/xai.grok-4.3
$1.50$3.00$0.24N/AN/AN/AN/AN/AN/AN/A——————
Amazon Bedrock logo
Amazon Bedrock
bedrock_mantle/xai.grok-4.3
$1.25$2.50$0.2N/A$0.625$1.25$0.1$2.19$4.38$0.35——————
Azure AI Foundry logo
Azure AI Foundry
azure_ai/grok-4.3
$1.25$2.50$0.2N/A————————————
Google Vertex AI logo
Google Vertex AI
vertex_ai/xai/grok-4.3
$1.25$2.50$0.2N/A————————————
OpenRouter logo
OpenRouter
x-ai/grok-4.3
$1.25$2.50$0.2$0.0050————————N/AN/AN/AN/A
OpenRouter logo
OpenRouter
x-ai/grok-4.3:batch
————————————$1.00$2.00$0.16$0.0050
Perplexity logo
Perplexity
perplexity/xai/grok-4.3
$1.25$2.50$0.2N/A————————————
Snowflake logo
Snowflake
grok-4.3
$1.50$3.00N/AN/A——————$3.00$6.00$0.75$1.50N/AN/A
Vercel AI Gateway logo
Vercel AI Gateway
spacexai/grok-4.3
$1.25$2.50$0.2N/A———$2.50$5.00$0.4——————
xAI logo
xAI
grok-4.3
$1.25$2.50$0.2N/A————————$0.625$1.25$0.1N/A

Cost Calculator

US Dollar ($)
Preset:

Versions

VersionReleasedContextInput / 1MOutput / 1MStatus
Grok 4.7524K$2.00$6.00Available
Grok 4.6524K$2.00$6.00Available
Grok 4.5500K$2.00$6.00Available
Grok 4.31.0M$1.25$2.50Current
Grok 4.202.0M$1.25$2.50Available
Grok 4.20 Multi-Agent2.0M$1.25$2.50Available
Grok 4.20 Multi-Agent Beta2.0M$1.25$2.50Available
Grok 4.20 Non-Reasoning2.0M$1.25$2.50Deprecating
Grok 4.20 Reasoning2.0M$1.25$2.50Deprecating
Grok 4.1 Reasoning2.0M$0.200$0.500Deprecated
Grok 4.1 Fast2.0M$5.00$25.00Deprecated

Model IDs

azure_ai/grok-4.3
bedrock_mantle/us-gov-west-1/xai.grok-4.3
bedrock_mantle/xai.grok-4.3
grok-4-3
grok-4-3-low
grok-4-3-medium
grok-4-3-non-reasoning
grok-4.3
openrouter/x-ai/grok-4.3
perplexity/xai/grok-4.3
publishers/google/models/grok-4.3
spacexai/grok-4.3
vertex_ai/xai/grok-4.3
x-ai/grok-4.3
xai-grok-4-3
xai/grok-4.3
xai/grok-4.3-latest