Grok 4.3

Name: Grok 4.3
Author: xAI

xAI

Released Jun 17, 2026Updated 14 Nov 2026, 09:33 UTC

Context window: 1M
Input / Output: image, text → text

API pricing

USD / 1M tokens

Input length	Input	Output	Cached input
Input ≤ 199,999 tokens	$1.25	$2.50	$0.20
Input > 199,999 tokens	$2.50	$5.00	$0.40

Thresholds include all input tokens, including cache hits.

Calculate your workload

Evidence links

Input: $1.25Input ≤ 199,999 tokens
$2.50Input > 199,999 tokens
Output: $2.50Input ≤ 199,999 tokens
$5.00Input > 199,999 tokens
Cached input: $0.20Input ≤ 199,999 tokens
$0.40Input > 199,999 tokens

Timeline

2026-06-17 · Product update · evidence link

Input / output price · USD / 1M tokens

Model	Evidence links	Input / output price
`grok-4.3` batch	xai API route unavailable	$1.00 (Input ≤ 199,999 tokens); $2.00 (Input > 199,999 tokens) / $2.00 (Input ≤ 199,999 tokens); $4.00 (Input > 199,999 tokens)
`grok-4.3` standard	xai	$1.25 (Input ≤ 199,999 tokens); $2.50 (Input > 199,999 tokens) / $2.50 (Input ≤ 199,999 tokens); $5.00 (Input > 199,999 tokens)

2026-11-13T18:49:32.453Z · Evidence links · GitHub search · xAI · pulls · dreadster3/pi-web · @dreadster3-renovate[bot]
Excerpt
- Grok 4.3 and Grok 4.5 on the `xai` provider now offer the `xhigh` thinking level, matching the reasoning efforts xAI supports for these models.
2026-11-13T18:49:32.453Z · Evidence links · GitHub search · xAI · pulls · amnn/pi-quote · @dependabot[bot]
Excerpt
<li>Grok 4.3 and Grok 4.5 on the <code>xai</code> provider now offer the <code>xhigh</code> thinking level, matching the reasoning efforts xAI supports for these models.</li>
2026-11-13T18:49:32.453Z · Evidence links · GitHub search · xAI · pulls · adobe/skills · @renovate[bot]
2026-11-13T18:49:32.453Z · Evidence links · GitHub search · xAI · pulls · LiuChen19960902/pi-mobile-gateway · @dependabot[bot]
Excerpt
<li>Grok 4.3 and Grok 4.5 on the <code>xai</code> provider now offer the <code>xhigh</code> thinking level, matching the reasoning efforts xAI supports for these models.</li>
2026-11-13T18:04:52.686Z · Confirmed use · xAI · official articles · Connectors in web, iOS, and Android
Excerpt
Advanced document editing capabilities are powered by Grok 4.3
2026-11-05T17:47:58.156Z · Catalogue listing · GitHub · xai-org/grok-build · code
Excerpt
fn reload_from_disk_cache_applies_external_catalog() { let mgr = test_manager(); let tmp = tempfile::TempDir::new().unwrap(); let cache = test_cache_manager(tmp.path()); cache.persist( &make_prefetched(&["grok-4.5", "grok-4.3"]), Some("etag-ext"), &mgr.cache_scope(), Utc::now(), ); mgr.reload_from_cache_manager(&cache); assert!(mgr.has_fetched_real_catalog()); assert!(mgr.models().contains_key("grok-4.5")); assert!(mgr.models().contains_key("grok-4.3")); assert_eq!(mgr.inner.catalog.read().etag.as_deref(), Some("etag-ext")); } #[test] #[serial] fn reload_from_disk_cache_recomputes_allowlist_excludes_all() { let mgr = test_manager(); let cfg = config_from_toml("[models]\nallowed_models = [\"keep-*\"]"); mgr.apply_refresh_result(&cfg, Some(make_prefetched(&["other-1"])), None); assert!(
This code reference does not establish a working model identifier.
2026-11-05T02:15:35.161Z · Catalogue listing · Vertex AI · quotas
2026-07-10T16:34:15.332Z · Alex's posts · Alex Getman
Excerpt
Grok 4.5: a new competitor to GPT and Claude Posting this a little late, but I prepared something interesting. Grok 4.5 is temporarily available to test for free in Grok Build and Cursor. The model runs at around 80 tokens per second, supports a context window of up to 500,000 tokens, and costs $2 per million input tokens and $6 per million output tokens. According to Musk, Grok 4.5 was trained from scratch on SpaceXAI’s own foundation and is not built on top of Kimi like Composer. In terms of quality, Grok 4.5 comes close to GPT-5.6 Terra, while its pricing is closer to Luna. Among Anthropic models, it sits between Haiku and Sonnet, making it especially attractive in terms of price-to-pe

Specifications

Grok 4.3 is a model from xAI, released on 17 Jun 2026. The context window is 1,000,000 tokens. Pricing is $1.25 (Input ≤ 199,999 tokens); $2.50 (Input > 199,999 tokens) per million input tokens and $2.50 (Input ≤ 199,999 tokens); $5.00 (Input > 199,999 tokens) per million output tokens.

Context window: 1,000,000
Input: image · text
Output: text
Input · USD / 1M tokens: $1.25 (Input ≤ 199,999 tokens); $2.50 (Input > 199,999 tokens)
Output · USD / 1M tokens: $2.50 (Input ≤ 199,999 tokens); $5.00 (Input > 199,999 tokens)
Cached input · USD / 1M tokens: $0.20 (Input ≤ 199,999 tokens); $0.40 (Input > 199,999 tokens)

Questions

What is the context window of Grok 4.3?

The context window is 1,000,000 tokens.

How much does Grok 4.3 cost?

Pricing is $1.25 (Input ≤ 199,999 tokens); $2.50 (Input > 199,999 tokens) per million input tokens and $2.50 (Input ≤ 199,999 tokens); $5.00 (Input > 199,999 tokens) per million output tokens. Cached input is $0.20 (Input ≤ 199,999 tokens); $0.40 (Input > 199,999 tokens) per million.

When was Grok 4.3 released?

On 17 Jun 2026.