Grok 4.3
xai The API that serves this model and sets the prices shown here. grok-4.3 The model identifier to send in API requests. LLM Generates text from a prompt, so it can be compared with other LLMs on price and capability. Retired May 15, 2026 This model has been retired and can no longer be relied on.Provider: xai
Model retirement announced on xAI docs: all but Grok 4.6 deprecated. Retirement date May 15, 2026.
Sticker prices & cost-per-token
List rates as published by xai, before any volume or enterprise discounts.
$1.25
$2.50
1,000,000 tokens
30,000
tokens per response (includes reasoning tokens)
Closed weights
$0.20
Tiered / volume pricing
| Condition | Input cost | Output cost | Notes |
|---|---|---|---|
| Above 200,000 input tokens | $2.50 / 1M | $5.00 / 1M |
Get this data free
Want to stay updated on price changes on this model? Pull this data free (no API key required) here:
curl "https://coolhandlabs.com/api/v2/inference_apis?q%5Bmodel_eq%5D=grok-4.3&q%5Bsource_api_eq%5D=xai"Pricing History
No pricing history recorded yet.
History
Last change detected September 21, 2026 (about 1 month ago) by an automated scan.
| Date | Changed by | What changed |
|---|---|---|
| Sep 19, 2026 | Unknown | Initial record created |
Source
https://models.dev/api.json (models.dev provider 'xai', import 2026-09-18)Comparable models
No comparable models identified yet.
Reliability
No reliability incidents recorded in the last 90 days.
Frequently asked questions
Grok 4.3 (xai) costs $1.25 per 1M input tokens and $2.50 per 1M output tokens, as last published by xai.
Grok 4.3 has a context window of 1,000,000 tokens (the maximum combined input and output it can handle in a single request).
Grok 4.3 can generate up to 30,000 tokens in a single response. Reasoning (thinking) tokens count toward this limit.
Grok 4.3 accepts image, pdf, and text as input and produces text as output, as recorded in the Coolhand catalog.
No — the weights of Grok 4.3 have not been released, so it is only available through hosted APIs.
Yes — xai deprecated Grok 4.3 on May 15, 2026. Model retirement announced on xAI docs: all but Grok 4.6 deprecated. Retirement date May 15, 2026.
xai retired Grok 4.3 on May 15, 2026.
Since Grok 4.3 is deprecated, xai customers are moving to Grok 4.3, Grok 4.6, and Grok Build 0.1.
Call GET https://coolhandlabs.com/api/v2/inference_apis?q[source_api_eq]=xai&q[model_eq]=grok-4.3 — free, no API key required, and scoped to just this model since source_api and model together are unique. See https://coolhandlabs.com/docs for the full REST API reference.
Coolhand also tracks Grok Code Fast 1, Grok 4.20 (Non-Reasoning), Grok 4.20 (Reasoning), Grok 4.20 Multi-Agent, Grok 4.5, and Grok Build 0.1 from xai. Some may already be deprecated, so check each model's status alongside its current pricing.
| Model | Input cost | Output cost | Context window | Max output tokens | Status |
|---|---|---|---|---|---|
| Grok Code Fast 1 via OpenCode | $0.00/1M $0.0000000000 | $0.00/1M $0.0000000000 | 256,000 | 256,000 |
Deprecated Aug 12, 2026
|
| Grok 4.20 (Non-Reasoning) | $1.25/1M $0.0000012500 | $2.50/1M $0.0000025000 | 1,000,000 | 30,000 |
Deprecated May 15, 2026
|
| Grok 4.20 (Reasoning) | $1.25/1M $0.0000012500 | $2.50/1M $0.0000025000 | 1,000,000 | 30,000 |
Deprecated May 15, 2026
|
| Grok 4.20 Multi-Agent | $1.25/1M $0.0000012500 | $2.50/1M $0.0000025000 | 1,000,000 | 30,000 |
Deprecated May 15, 2026
|
| Grok 4.5 | $2.00/1M $0.0000020000 | $6.00/1M $0.0000060000 | 500,000 | 500,000 |
Deprecated May 15, 2026
|
| Grok Build 0.1 | $1.00/1M $0.0000010000 | $2.00/1M $0.0000020000 | 256,000 | 256,000 |
Deprecated May 15, 2026
|
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