Grok 4.6SpaceXAI
Grok 4.6 is a model from SpaceXAI with frontier performance on coding, knowledge work, and STEM. It is succeeded by [Grok 4.7](/x-ai/grok-4.7).
Context 500KIn $2.00 · Out $6.00 /1M
Specs
Model ID
x-ai/grok-4.20Context window2M tokens
Max output1.8M tokens
Input price$1.25 / 1M tokens
Output price$2.50 / 1M tokens
Inputs → outputsText, Image, File → Text
Open weightsNo
How to use Grok 4.20 in your app
The quickest way is through an API gateway such as OpenRouter, which uses the same format as the OpenAI API. Create a key, then send a request with the model ID x-ai/grok-4.20:
curl https://openrouter.ai/api/v1/chat/completions \
-H "Authorization: Bearer $OPENROUTER_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "x-ai/grok-4.20",
"messages": [{"role": "user", "content": "Explain this in simple words..."}]
}'
Prefer no code? Many tools in our AI tools directory run on models like this one.
More models from SpaceXAI
Grok 4.5SpaceXAI
Grok 4.5 is a model from SpaceXAI with frontier performance on coding, knowledge work, and STEM.
Context 500KIn $2.00 · Out $6.00 /1M
Grok Build 0.1SpaceXAI
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...
Context 256KIn $1.00 · Out $2.00 /1M
Grok 4.3SpaceXAI
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...
Context 1MIn $1.25 · Out $2.50 /1M
Grok 4.20 Multi-AgentSpaceXAI
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...
Context 2MIn $1.25 · Out $2.50 /1M
Questions about Grok 4.20
What is Grok 4.20?
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...
How big is the context window of Grok 4.20?
Grok 4.20 can read up to 2,000,000 tokens in one request, roughly 1,500,000 words.
How much does Grok 4.20 cost?
Through OpenRouter, Grok 4.20 costs about $1.25 / 1M tokens for input and $2.50 / 1M tokens for output. Prices change, so check before large jobs.
Is Grok 4.20 open source?
Grok 4.20 does not have downloadable weights. You use it through SpaceXAI or an API provider.
What can Grok 4.20 take as input?
Grok 4.20 accepts text, image, file and produces text.
Latest AI models
MiniMax: MiniMax M3.1 Flash (free)Minimax
MiniMax-M3.1-Flash is a multimodal model from MiniMax. Compared with M3, it delivers significant improvements across multiple benchmarks, particularly in complex agentic tasks, coding, and cybersecurity. It is built for complex,...
Context 1M
NewDeepSeek: DeepSeek V4.1 Flash 1017Deepseek
DeepSeek V4.1 Flash 1017 is the October 17, 2026 snapshot of DeepSeek V4.1 Flash, served by DeepSeek under the `deepseek-flash` API model name. V4.1 Flash is a sparse mixture-of-experts model...
Context 1MIn $0.15 · Out $0.60 /1M
NewOpen weightsElorian: GlimpseElorian
Glimpse is a multimodal visual reasoning model from Elorian, built for visual understanding and complex visual reasoning in the physical world. It reasons directly over images and video rather than...
Context 262KIn $0.60 · Out $3.00 /1M
NewXingChen: Xing4.0 29B A4B (free)Xingchen Agi
Xing4.0-29B-A4B is an open-weight mixture-of-experts language model from China Telecom's AI team (TeleAI) and the successor to the TeleChat series. It has 29B total parameters with 4B active per token...
Context 262K
NewOpen weightsReflection: Beam 1.0 501B A23BReflection
Beam 1.0 is Reflection's open-weight reasoning model for coding and long-horizon agentic workflows. It uses a sparse mixture-of-experts architecture with 501B total and 23B active parameters per token, and a...
Context 1MIn $0.30 · Out $1.00 /1M
NewOpen weightsInception: Mercury 3Inception
Mercury 3 is a diffusion-based language model from Inception, and the lab's most capable model to date. It is suited for agentic workflows and real-time applications where latency compounds, such...
Context 1MIn $0.10 · Out $0.35 /1M
NewSpecs and prices come from OpenRouter and the provider, and are refreshed daily. Last checked 31 Mar 2026.