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AI conversation model
xAI
Grok

Grok 4.3

Grok 4.3 — A Grok chat candidate for reasoning, multi-step conversations, search, and function-tool workflows. Generation unavailable.

Online use is currently unavailable

This page is for reviewing the model's capabilities, use cases, and public references. The model does not appear in the home workbench, and you cannot submit generation tasks with it.

Current status
Generation unavailable
Family
Grok
Access status
Rejected before charging
30-second overview
  • This is not Coming Soon; workbench access is temporarily unavailable, and no availability date has been announced.
  • Streaming, four reasoning levels, and tool capabilities are documented.
  • It is absent from the selector and creates no request or credit charge.

Popular searches: Can I use Grok 4.3 now? · Does Grok 4.3 support deep reasoning? · Can Grok 4.3 call tools?

Examples

Handmade Paper Studio: Opening day coordination

Plan a 90-minute Friday opening for Handmade Paper Studio at the paper workshop. We have 55 paper frames and groups of 11.
Use 5 groups with one coordinator per group. 00:00–00:10: welcome and explain the activity. 00:10–00:20: distribute 11 paper frames to each group. 00:20–01:05: run the main activity. 01:05–01:20: collect feedback and reusable equipment. 01:20–01:30: clean the paper workshop and check the inventory.
What should the coordinator check first?
Count the 55 paper frames before visitors arrive. Confirm a clear entrance and an accessible work area at the paper workshop, then give each of the 5 group leads the same timing sheet.

Handmade Paper Studio: Supply budget calculation

Handmade Paper Studio needs 55 paper frames at $13.45 each. Add a 10% reserve. Show the arithmetic.
Supplies: 55 × $13.45 = $739.75. Reserve: $739.75 × 0.10 = $73.98. Planned total: $813.73. This is a planning calculation using the supplied prices.
What if we reduce the quantity by one group?
Remove 11 units, leaving 44. Supplies become $591.80; a 10% reserve adds $59.18, for a total of $650.98.

Handmade Paper Studio: Visitor announcement

Write a warm announcement for Handmade Paper Studio, meeting on Friday at the paper workshop. Mention limited paper frames, without promising availability.
Join Handmade Paper Studio this Friday at the paper workshop. Meet neighbors, learn together, and take part at your own pace. We will share the available paper frames across small groups. Supplies are limited, so please check with the welcome desk when you arrive.
Shorten it to an event sign.
Handmade Paper Studio Friday · paper workshop Welcome! Ask the desk about available paper frames and today’s small-group activities.

Handmade Paper Studio: Inventory CSV validation

Write Python to validate Handmade Paper Studio inventory CSV with columns item,quantity. Quantity must be a nonnegative integer.
```python import csv def read_inventory(path): rows = [] with open(path, newline="", encoding="utf-8") as handle: reader = csv.DictReader(handle) if reader.fieldnames != ["item", "quantity"]: raise ValueError("Expected item,quantity columns") for line, row in enumerate(reader, 2): name = row["item"].strip() quantity = row["quantity"].strip() if not name or not quantity.isascii() or not quantity.isdecimal(): raise ValueError(f"Invalid inventory row {line}") rows.append((name, int(quantity))) return rows # Example row: paper frames,55 ```
What are two useful validation cases?
The row `paper frames,55` should pass. The row `paper frames,-1` should raise a ValueError because a negative quantity is outside the stated inventory contract. An empty item should also fail.

Handmade Paper Studio: Coordinator handover note

Create a concise handover note for Handmade Paper Studio: 55 paper frames, 5 groups, meeting Friday at paper workshop.
Handover — Handmade Paper Studio Location: paper workshop; day: Friday. Inventory: 55 paper frames, allocated as 5 groups × 11. Before opening: count supplies, set the welcome desk, and confirm group leads. During the event: record shortages and visitor questions. After closing: count returns and write one improvement for the next meeting.
Add a useful open question for the next lead.
Ask: “Were 11 paper frames per group enough for the activity, and which step created the longest wait?” Record the answer beside the returned inventory count.

Handmade Paper Studio: Participant question response

A visitor asks whether they can join Handmade Paper Studio halfway through the Friday session at paper workshop. Draft a welcoming but practical reply.
You are welcome to check in at the desk when you arrive. A coordinator can explain the current activity and see whether a group has space and spare paper frames. If the activity is already full, we can help you observe or find the next joining point.
What should we avoid saying?
Avoid guaranteeing a place or a set of paper frames before checking the group capacity. Keep the reply specific to the paper workshop session and offer a clear next step: speak with the welcome desk.

At a glance

Is this model right for you?

Grok 4.3 / Current status — Generation unavailable. Streaming, four reasoning levels, and tool capabilities are documented.

What it does best
A Grok chat candidate for reasoning, multi-step conversations, search, and function-tool workflows.
Who it is for
Future evaluations of complex analysis, tool choice, structured results, and instruction following.
Why use it on Kyeo AI
Grok 4.3 / Current status — Generation unavailable. Use Claude Opus 4.8, Claude Sonnet 5, or Claude Opus 5.

Key facts

Quickly evaluate whether this model fits your business use case.

Vendor
xAI
Reasoning
low / medium / high / xhigh
Streaming
Contract documented
Tools
Web search or functions, mutually exclusive
Blocking reason
Generation unavailable

Other names

The same model may have different names in official documentation, community discussions, and API integrations. This section brings them together for you.

Grok 4.3 Chat
Grok 4 3

Common questions

These practical questions focus on the task, input conditions, and result requirements you should confirm before choosing.

Can I use Grok 4.3 now?
Does Grok 4.3 support deep reasoning?
Can Grok 4.3 call tools?
What are the best Grok 4.3 alternatives?

Decision guide

Still deciding? Start with these key decision points.

1
If you need advanced chat now

Use Claude Opus 4.8, Claude Sonnet 5, or Claude Opus 5.

2
If you are preparing a reasoning evaluation

Save multi-step reasoning, search, and function-call samples for controlled comparison after the hold is lifted.

3
Grok 4.3 / Keep repeatable samples

Grok 4.3 / Keep repeatable samples — After access opens, repeat identical tasks and record correctness, tool choice, latency, and usage.

Popular comparisons

Compare common alternatives on the same task to clarify differences in inputs, controls, and cost.

Should I choose Grok 4.3 or Claude Opus 4.8?
When will Grok 4.3 become available?

Real-world experience

Practical guidance based on public sources, current on-site limits, and representative tasks.

Current status / Grok 4.3

Grok 4.3 is unavailable for generation, and no current price is shown.

Tool capabilities need separate acceptance

Search and function tools are mutually exclusive and must be tested independently.

Capabilities

Grok 4.3 / AI conversation model

Grok 4.3 / AI conversation model — A Grok chat candidate for reasoning, multi-step conversations, search, and function-tool workflows.

Reasoning and streaming

Low-to-xhigh reasoning and streaming are documented but unavailable on this site.

Tool workflows

Web search and function calling are documented for future evaluation but cannot share one request.

Use cases

Complex analysis

Evaluate multi-source reasoning, tradeoffs, and structured conclusions.

Tool-call planning

Test whether the model selects and sequences clearly defined tools.

Search-assisted research

Once available, compare citation traceability, freshness, and conclusion quality.

Prompt tips

Define tool contracts

Specify each tool's inputs, outputs, and failure conditions before testing.

Separate search and function tests

The official contract makes the two tool types mutually exclusive.

Keep repeatable samples

After access opens, repeat identical tasks and record correctness, tool choice, latency, and usage.

Why choose it

Reasoning and tool-search intent has a dedicated status page.
A reliable maximum output-usage limit has not been established; messages cannot be submitted and no credits are charged.
Unavailable models cannot accept messages or charge credits.

What to know first

Standard and streaming requests cannot currently be created.
Grok 4.3 / Attachments unavailable — Generation unavailable
Grok 4.3 is unavailable for generation; messages cannot be submitted and no credits are charged.

Currently unavailable

This page is for reviewing the model's capabilities, use cases, and public references. The model does not appear in the home workbench, and you cannot submit generation tasks with it. A Grok chat candidate for reasoning, multi-step conversations, search, and function-tool workflows.

No additional settings are available for this model.

Frequently asked questions

Related models

Still deciding? Take a quick look at these similar alternatives.

Claude Opus 4.8

Claude Opus 4.8 is designed for high-complexity text analysis and consequential writing. Kyeo AI offers text-only chat with up to 20,000 characters per message and an explicit 4,096-token maximum output.

AI conversation model
Token-based pricing

Claude Sonnet 5

Claude Sonnet 5 is the more balanced Claude candidate in this batch for research, code explanation, and structured writing. Its maximum output on this site is 4,096 tokens.

AI conversation model
Token-based pricing

Claude Opus 5

Claude Opus 5 is a flagship candidate for high-complexity text work. Kyeo AI limits each message to 20,000 characters, includes the 40 most recent submitted messages, and caps output at 4,096 tokens.

AI conversation model
Token-based pricing

Sources

This page is based on vendor materials, model-family documentation, and Kyeo AI integration settings.

Source note

Grok 4.3 / Current status — Generation unavailable. A Grok chat candidate for reasoning, multi-step conversations, search, and function-tool workflows.

Last updated: 2026-10-06
Grok 4.3 / Current status
Integration

Grok 4.3 / Current status — Generation unavailable