Grok 4 3 costs $1.25/1M input tokens and $2.50/1M output tokens as of 2026-06-27. xAI publishes this model with a 1M tokens context window. o10 lists Grok 4 3 on xAI at routing band C1. API slug grok-4-3. Verify list prices against the venue you call.
Last updated: 2026-06-27. Full catalog. Reference prices are dated snapshots. Compare total cost and measured task quality before choosing a route.
Grok 4 3 is a chat model from xai (slug: grok-4-3). Pick Grok 4 3 when the job needs xAI Grok (or Cursor's Grok pool) and evals justify the band. Published input pricing starts at $1.25/1M tokens. Context window: 1M tokens.
Catalog snapshot 2026-06-27.
When should you pick Grok 4 3?
Pick Grok 4 3 when the job needs xAI Grok (or Cursor's Grok pool) and evals justify the band. Grok 4 3 is a Grok generation, not a Claude or GPT SKU. Compare against the previous Grok and against Gemini Flash on cost.
How does Grok 4 3 differ from sibling models?
Grok 4 3 is a Grok generation, not a Claude or GPT SKU. Compare against the previous Grok and against Gemini Flash on cost.
How much does Grok 4 3 cost per million tokens?
Grok 4 3 costs $1.25/1M input tokens and $2.50/1M output tokens in the gateway catalog snapshot (2026-06-27). Endpoint pricing may differ by fulfillment host.
Sourced from gateway catalog snapshot.
Where can you run Grok 4 3?
Grok 4 3 is configured on xAI. Known host IDs: xai: xai/grok-4.3. This model is routable through o10 eval-gated routing.
What is Grok 4 3's context window?
Grok 4 3 supports a 1M tokens context window in the gateway catalog snapshot. Context limits may vary by fulfillment host endpoint.
What o10 routing band is Grok 4 3?
Grok 4 3 is classified at o10 routing band C1. Bands group models by cost tier and eval profile: C0 (economy), C1 (standard), C2 (capable), C3/C4 (frontier). Production routing is enabled for this slug.
Who makes Grok 4 3?
Grok 4 3 is attributed to source provider xai in the o10 catalog. Fulfillment hosts (xAI) supply API access; list pricing may differ by venue.
01Deep dive
Specifications
Grok 4 3 in the o10 unified catalog.
Grok 4 3 specifications
Field
Value
o10 slug
`grok-4-3`
Type
text
Band
C1
Routable
Yes
Source provider
xai
Primary host
xAI
Gateway ID
`xai/grok-4.3`
Context window
1,000,000 tokens
Released
2026-04-30
02Deep dive
Token pricing
Gateway snapshot pricing for Grok 4 3.
Grok 4 3 token pricing
Unit
Price
Input
$1.25/1M tokens
Output
$2.5/1M tokens
03Deep dive
Fulfillment hosts
Upstream venues configured for Grok 4 3.
Grok 4 3 fulfillment routes
Host
Upstream model ID
xai
xai/grok-4.3
04Deep dive
Gateway provider endpoints
Endpoint-level pricing and latency from the gateway catalog.
Grok 4 3 gateway endpoints
Provider
Input ($/1M)
Latency p50
Uptime 1d
vertex
$1.25
1121ms
10000.0%
xai
$1.25
992ms
9998.6%
05Deep dive
Routing with o10
Eval-gated model selection for this slug.
o10 slug: grok-4-3. Band: C1. Routable: yes.
See [/models/routing](/models/routing) for smart aliases (o10/auto, o10/frontier, o10/squad) and [/kyi](/kyi) for governance.
SourceMethodology
Fulfillment catalog 2026-06-27. Gateway pricing joined where slug match exists.
Grok 4 3 costs $1.25/1M input tokens and $2.50/1M output tokens in the gateway snapshot (2026-06-27). Verify against your provider's published pricing.
What is Grok 4 3's context window?
Grok 4 3 supports 1M tokens in the gateway catalog snapshot. Host-specific endpoints may differ.
Which hosts serve Grok 4 3?
Grok 4 3 (grok-4-3) is configured on: xAI. Upstream model IDs are listed in the fulfillment routes section.
Is Grok 4 3 routable through o10?
Yes. Grok 4 3 is routable at band C1. Send model: "grok-4-3" or use an o10 smart routing alias.
How do I call Grok 4 3 via o10?
Use o10 slug "grok-4-3" or gateway ID "xai/grok-4.3" depending on your integration. Gateway-compatible endpoints accept OpenAI-style /v1 requests.
How does o10 route this model?
o10 routes Grok 4 3 only when per-use-case evals clear at your quality floor. Band C1 indicates cost tier. See /kyi for governance and /models/routing for smart aliases.