PREVIOUS GROK1M CONTEXTPROMPT CACHINGCONFIGURABLE REASONING
Grok 4.3 API Pricing
Grok 4.3 remains listed on xAI's pricing page as the cheaper 1M-context Grok option: $1.25/M input, $0.20/M cached input, and $2.50/M output. Grok 4.5 is now the latest model.
Input - per 1M tokens
$1.25/M
Previous Grok 4.3 live
Output - per 1M tokens
$2.50/M
Reasoning tokens billed as output live
Cached input
$0.20/M
Prompt cache xAI row -84%
Effective - agentic blend
$0.56/M
92/8 split - 82% cache
§ 01 / TERMINAL
Run the numbers.
Live calculator pre-loaded with Grok 4.3 rates. After the Grok 4.5 launch, Grok 4.3 remains useful as a cheaper 1M-context option at $1.25/M input, $0.20/M cached input, and $2.50/M output.
$ /mo
Workload split
Prompt cache hit rate
Tokens you can process
—
Words equivalent (English)
—
Effective rate
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§ 02 / SCENARIOS
Real-world presets.
AGENT
Tool-calling agent
$0.051/task
LONG CONTEXT
Research pack synthesis
$0.103/pack
CHAT
Power-user chat
$0.031/turn
RAG
Knowledge base RAG
$0.088/answer
§ 03 / TOKENIZER
Paste text. See tokens. See cost.
Estimate · grok-tokenizer-estimate · ≈3.85 chars/token Auto-counts as you type
This is a chars-per-token approximation, not a real tokenizer. Actual tokens vary by language, code density, and tool-call overhead — counts are typically ±10–20% off for English prose, more for code or non-Latin scripts. For exact billing, use the vendor's official tokenizer.
Characters 352
Words 64
Tokens (estimated) 91 tokens
Cost as input · uncached $0.000114 USD
Cost as output · uncached $0.000228 USD
Cost as cached input $0.000018 USD
| Model | Input /M | Output /M | Effective blended | Context | Best for |
|---|---|---|---|---|---|
| Grok 4.5 | $2.00 cache $0.50 | $6.00 | $1.19 latest Grok | 500K | Coding, agents, and knowledge work |
| Grok 4.3 Current | $1.25 cache $0.20 | $2.50 | $0.56 cheaper previous Grok | 1M | Lower-cost Grok chat and tools |
| Grok Build 0.1 | $1.00 cache $0.20 | $2.00 | $0.52 coding early access | 256K | Dedicated coding workflows |
| Grok 4.20 Multi-Agent | $1.25 cache $0.20 | $2.50 | $0.56 2M context | 2M | Pinned long-context agent loops |
| Claude Sonnet 5 | $3.00 cache $0.30 | $15.00 | $1.92 Anthropic coding | 1M | Claude-class coding agents |
| GPT-5.6 Sol | $3.00 cache $0.30 | $18.00 | $2.16 OpenAI flagship | 1M | OpenAI frontier workloads |
| DeepSeek V4 Pro | $0.43 cache $0.00 | $0.87 | $0.14 budget reasoning | 1M | Low-cost reasoning alternative |
Frequently asked.
Grok 4.3 pricing questions, with xAI token rates separated from workload assumptions.
Q · 01 What is Grok 4.3's API price? +
xAI still lists
grok-4.3 at $1.25/M input, $0.20/M cached input, and $2.50/M output. Grok 4.5 is now the latest model, but Grok 4.3 remains a cheaper 1M-context option.Q · 02 Does Grok 4.3 support prompt caching? +
Yes. The xAI pricing page lists cached input at
$0.20/M, versus $1.25/M for fresh input. This page uses an 82% cache-hit assumption only for the effective blend tile.Q · 03 What happened to older Grok slugs? +
xAI says several older model slugs retired on
2026-05-15 and now redirect to grok-4.3. Requests through those deprecated slugs are billed at Grok 4.3 pricing.Q · 04 Is Batch API cheaper? +
xAI says Batch API requests can receive
20%-50% off standard token rates depending on the model detail page. This page keeps the headline calculator on standard realtime rates.Q · 05 Are tool calls included in token pricing? +
No. xAI prices server-side tools separately, for example Web Search and X Search at
$5 / 1k calls. Token usage from those requests is still billed at the selected model rate.Q · 06 How accurate is the tokenizer estimate? +
The widget uses a GPT-class planning estimate of
4.875 characters per token. Exact xAI billing can vary with language, hidden reasoning tokens, tool use, and cached prompt boundaries.