Grok 4.3 (batch)
SpaceXAI· released 30 Apr 2026
x-ai/grok-4.3:batch- Input / 1M tokens
- $1
- Output / 1M tokens
- $2
Longest answer: 900K tokens
About
Grok 4.3 (batch) is a reasoning model from SpaceXAI in the x-ai family, released on 2026-04-30. It accepts text, image, and file inputs and returns text; vision and tool support are listed. Its context window is 1,000,000 tokens, and its maximum output is 900,000 tokens. Input costs $1 USD per 1M tokens, while output costs $2 USD per 1M tokens. The listing describes the model as suited to agentic workflows, instruction-following tasks, and applications requiring high factual performance. Its model ID is x-ai/grok-4.3:batch, and the official listing is on OpenRouter. For teams selecting a model for a stack that handles mixed inputs, the available image input and large context are notable alongside its reasoning and tool capabilities. The listed output remains text, so the model’s input range is broader than its output modality.
Who it is for
It suits teams building agentic or instruction-following applications that need text, image, and file inputs with text output. The large context may suit workloads that require a longer input window.
What is good
- Accepts text, image, and file inputs.
- Vision and tool support are listed.
- Context window is 1,000,000 tokens.
- Maximum output is 900,000 tokens.
What to know first
- Output is text only.
- Input costs $1 USD per 1M tokens.
- Output costs $2 USD per 1M tokens.
Verdict
Grok 4.3 (batch) combines reasoning and tool support with broad listed inputs and a large context window. Its text-only output and per-token rates are important constraints to factor into a stack decision.
Details
- Lab
- SpaceXAIopenrouter.ai · 3 Oct 2026
- Context
- 1,000Kopenrouter.ai · 3 Oct 2026
- Input price
- $1 / 1Mopenrouter.ai · 3 Oct 2026
- Output price
- $2 / 1Mopenrouter.ai · 3 Oct 2026
- Max output
- 900,000 tokensopenrouter.ai · 3 Oct 2026
- Inputs
- text, image, fileopenrouter.ai · 3 Oct 2026
- Open weights
- Noopenrouter.ai · 3 Oct 2026
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- SpaceXAI Models: Pricing per 1M Tokens and Context (2026)8 listed
Sources
- openrouter.ai/x-ai/grok-4.3:batch· checked 3 Oct 2026