ModelBench
Model catalog

Models

Every model in the catalog with source-linked pricing, context limits, provider availability, and published benchmark results.

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11 models
File xAI 200K+
xAI: Grok 4.3 T
Reasoning Tools JSON

xAI's default Grok for chat, coding, agentic tools, and lower hallucination risk

xai/grok-4.3 2026-04-17 1M context $1.25/M input $2.5/M output
28 providers
xAI: Grok Build 0.1 T
Reasoning Tools JSON

Fast Grok coding model tuned for agentic engineering and iterative edits

xai/grok-build-0.1 2026-04-16 256K context $1/M input $2/M output
19 providers
xAI: Grok 4.20 (Non-Reasoning) T
Tools JSON

Grok model for agentic tool use, reasoning, coding, and live assistance

xai/grok-4.20-0309-non-reasoning 2026-03-09 1M context $1.25/M input $2.5/M output
8 providers
xAI: Grok 4.20 (Reasoning) T
Reasoning Tools JSON

Reasoning Grok for document-heavy analysis and long-horizon tool use

xai/grok-4.20-0309-reasoning 2026-03-09 1M context $1.25/M input $2.5/M output
9 providers
xAI: SpaceXAI: Grok 4.20 T

Grok 4.20 is a reasoning model from SpaceXAI with industry-leading speed and agentic tool calling capabilities. It combines the lowest hallucination rate on the market with strict prompt adherance, delivering...

x-ai/grok-4.20 2M context $1.25/M input $2.5/M output
xAI: SpaceXAI: Grok 4.3 T

Grok 4.3 is a reasoning model from SpaceXAI. It accepts text and image inputs with text output, and is suited for agentic workflows, instruction-following tasks, and applications requiring high factual...

x-ai/grok-4.3 1M context $1.25/M input $2.5/M output
xAI: SpaceXAI: Grok Build 0.1 T

Grok Build 0.1 is SpaceXAI’s fast coding model trained specifically for agentic software engineering workflows. It supports text and image inputs with text output, and is optimized for interactive coding...

x-ai/grok-build-0.1 256K context $1/M input $2/M output
xAI: SpaceXAI: Grok 4.5 T

Grok 4.5 is a model from SpaceXAI with frontier performance on coding, knowledge work, and STEM.

x-ai/grok-4.5 500K context $2/M input $6/M output
xAI: SpaceXAI: Grok 4.3 (batch) T

Grok 4.3 is a reasoning model from SpaceXAI. It accepts text and image inputs with text output, and is suited for agentic workflows, instruction-following tasks, and applications requiring high factual...

x-ai/grok-4.3:batch 1M context $1/M input $2/M output
xAI: SpaceXAI: Grok 4.6 T

Grok 4.6 is SpaceXAI's smartest model with frontier performance on coding, knowledge work, and STEM.

x-ai/grok-4.6 500K context $2/M input $6/M output
xAI: SpaceXAI: Grok 4.20 Multi-Agent T

Grok 4.20 Multi-Agent is a variant of SpaceXAI’s Grok 4.20 designed for collaborative, agent-based workflows. Multiple agents operate in parallel to conduct deep research, coordinate tool use, and synthesize information...

x-ai/grok-4.20-multi-agent 2M context $1.25/M input $2.5/M output