Grok 2 Models by xAI

xAIGrok LicenseOpen weights
xAI releases · 15 in the last 12 monthsChangelog →
3 models2024Up to 128k ctxFrom $0.500/1M input

Last refreshed 2026-05-20. Next refresh: weekly.

Details

ResearcherxAI
Commercial useCommercial use: conditional
Models3
Released2024
Max context128k

Capabilities

Multimodal1 of 3 models
Reasoning2 of 3 models
Structured Outputs1 of 3 models

About

Grok 2 is xAI’s next model family after Grok-1.5, introduced with Grok-2 and the smaller Grok-2 mini for frontier-style chat, coding, and reasoning. On X, the beta models add stronger text and vision understanding and integrate real-time platform information; xAI also announced enterprise API access. Hugging Face hosts Grok 2 post-trained weights for self-hosted serving (for example with SGLang).

Decision facts

Best fit
vision and multimodal workreasoningstructured outputs
Capability starting point
Grok-2 with 128k context and reasoning and structured outputs
Lowest tracked input
Grok-2 · $0.500/1M · SiliconFlow
Closest related family
Grok 1

Current Variants

Use-when guidance is based on each model's tracked capabilities, context window, release date, and replacement status.

3 in view

Use when the workload needs multimodal inputs.

2024-12multimodal inputs
Grok-2Current

Use when the workload needs 128k context, reasoning, and structured outputs.

2024-08128k contextreasoningstructured outputs

Use when the workload needs 128k context and reasoning.

2024-08128k contextreasoning

Release Timeline

2 release groups
2024-12
1 current
Grok 2 Vision
multimodal inputs
Current
2024-08
2 current
Grok-2
128k contextreasoningstructured outputs
Current
Grok-2 Mini
128k contextreasoning
Current

Specifications(3 models)

Grok 2 model specifications comparison
ModelReleasedContextMultimodalReasoningStructured Outputs
Grok 2 Vision2024-12—YesNoNo
Grok-22024-08128kNoYesYes
Grok-2 Mini2024-08128kNoYesNo

Available From(1 provider)

Pricing

Grok 2 model pricing by provider
ModelProviderInput / 1MOutput / 1MType
Grok-2SiliconFlow$0.5$0.5Serverless

Popular comparisons in this family