Grok 4.3 vs Grok Build 0.1

Grok 4.3 (xAI) versus Grok Build 0.1 (xAI): API pricing, context window, capabilities and uptime, from the same data as each model page, at the WandAPI default channel price. Input costs 1.25 Credits / M for Grok 4.3 and 1 Credits / M for Grok Build 0.1, so Grok Build 0.1 is 20% cheaper. Context windows are 1M and 256K.

Grok 4.3grok-4.3
xAI
Input (prompt)
1.25Credits / M
≈ $0.19
Output (completion)
2.5Credits / M
≈ $0.38
1M context · 128K output85% off
Grok 4.3 details
Grok Build 0.1grok-build-0.1
xAI
Input (prompt)
1Credits / M
≈ $0.152
Output (completion)
2Credits / M
≈ $0.304
256K context · — output85% off
Grok Build 0.1 details
Lower input price
Grok Build 0.1
20% cheaper
Larger context
Grok 4.3
1M · 256K
More exclusive capabilities
Grok 4.3
Web Search

Specs side by side

Item
Grok 4.3grok-4.3
Grok Build 0.1grok-build-0.1
Input (prompt) · Credits / M1.25≈ $0.191≈ $0.152
Output (completion) · Credits / M2.5≈ $0.382≈ $0.304
Cache read · Credits / M0.20.2
Context window1M256K
Max output128K—
7-day uptime——
Latest probe latency——
Measured throughput——
ProtocolsOpenAI ResponsesOpenAI Responses
Sample monthly cost (10M in + 2M out)17.5≈ $2.6614≈ $2.13

Prices are the WandAPI default channel price in Credits (1 Credit = ¥1); green marks the better side. Uptime and latency come from WandAPI probes; a dash means the model is not probed yet.

Capabilities

CapabilityGrok 4.3Grok Build 0.1
Vision
Function Calling
Reasoning
Prompt Caching
Response Schema
Streaming
Web Search
Audio
Video
File Input
Realtime
Session
Media
Multipart Form
Binary Response

FAQ

Which is cheaper, Grok 4.3 or Grok Build 0.1?

At the WandAPI default channel price, Grok 4.3 input costs 1.25 Credits / M and Grok Build 0.1 input costs 1 Credits / M, so Grok Build 0.1 is 20% cheaper. Output and cache prices are in the specs table above.

Which has the larger context window, Grok 4.3 or Grok Build 0.1?

Grok 4.3 offers 1M tokens, Grok Build 0.1 offers 256K tokens.

Can I switch between Grok 4.3 and Grok Build 0.1 at any time?

Yes. WandAPI calls every model with the same API key; switching is just changing the model field in the request, and billing is split per model in one console.

How do the capabilities of Grok 4.3 and Grok Build 0.1 differ?

Only Grok 4.3: Web Search. Every other capability is either supported by both or by neither; see the capability table above.

More comparisons

One API key for both Grok 4.3 and Grok Build 0.1

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