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Grok 4.20 vs Grok 4.20 Multi-Agent

Grok 4.20 (2026) and Grok 4.20 Multi-Agent (2026) are frontier-tier reasoning models from xAI. Grok 4.20 ships a 2M-token context window, while Grok 4.20 Multi-Agent ships a 2M-token context window. On pricing, Grok 4.20 costs $1.25/1M input tokens versus $1.25/1M for the alternative. This comparison covers specs, pricing, capabilities, benchmarks, provider availability, and production fit. It focuses on practical selection signals rather than broad model-family marketing.

Grok 4.20 is safer overall; choose Grok 4.20 Multi-Agent when provider fit matters.

Decision scorecard

Local evidence first
SignalGrok 4.20Grok 4.20 Multi-Agent
Decision fitCoding, RAG, and AgentsRAG, Agents, and Long context
Context window2M2M
Cheapest output$2.5/1M tokens$2.5/1M tokens
Provider routes2 tracked2 tracked
Shared benchmarks0 rows0 rows

Decision tradeoffs

Choose Grok 4.20 when...
  • Local decision data tags Grok 4.20 for Coding, RAG, and Agents.
Choose Grok 4.20 Multi-Agent when...
  • Local decision data tags Grok 4.20 Multi-Agent for RAG, Agents, and Long context.

Monthly cost at traffic

Estimate token spend from the cheapest tracked input and output prices on this page.

Lower estimate Grok 4.20

Grok 4.20

$1,625

Cheapest tracked route: xAI Console

Grok 4.20 Multi-Agent

$1,625

Cheapest tracked route: xAI Console

Estimated monthly gap: $0.00. Batch, cache, and negotiated pricing are excluded from this local estimate.

Switch friction

Grok 4.20 -> Grok 4.20 Multi-Agent
  • Provider overlap exists on OpenRouter and xAI Console; start route-level A/B tests there.
  • Cheapest tracked output pricing is tied, so migration risk shifts to quality, latency, and provider packaging.
Grok 4.20 Multi-Agent -> Grok 4.20
  • Provider overlap exists on xAI Console and OpenRouter; start route-level A/B tests there.
  • Cheapest tracked output pricing is tied, so migration risk shifts to quality, latency, and provider packaging.

Specs

Specification
Released2026-01-012026-01-01
Context window2M2M
Parameters
Architecture--
LicenseProprietaryProprietary
Knowledge cutoff--

Pricing and availability

Pricing attributeGrok 4.20Grok 4.20 Multi-Agent
Input price$1.25/1M tokens$1.25/1M tokens
Output price$2.5/1M tokens$2.5/1M tokens
Providers

Capabilities

CapabilityGrok 4.20Grok 4.20 Multi-Agent
VisionNoNo
MultimodalNoNo
ReasoningYesYes
Function callingYesYes
Tool useYesYes
Structured outputsYesYes
Code executionNoNo

Benchmarks

No shared benchmark rows are currently sourced for this pair.

Deep dive

The capability footprint is close: both models cover reasoning mode, function calling, tool use, and structured outputs. That makes context budget, benchmark fit, and provider maturity more important than a simple checklist. If your application depends on one integration detail, verify it against the provider route you plan to use, not just the base model listing.

For cost, Grok 4.20 lists $1.25/1M input and $2.5/1M output tokens, while Grok 4.20 Multi-Agent lists $1.25/1M input and $2.5/1M output tokens on the cheapest tracked provider. A 70/30 input-output blend puts Grok 4.20 lower by about $0 per million blended tokens. Availability is 2 providers versus 2, so concentration risk also matters.

Choose Grok 4.20 when provider fit are central to the workload. Choose Grok 4.20 Multi-Agent when provider fit are more important. For production, rerun your own prompts through the exact provider, region, and tool stack you plan to ship. This keeps the decision grounded in measurable tradeoffs instead of brand-level assumptions. It also helps separate model capability from provider packaging, which can change cost and latency. For teams standardizing a stack, that distinction is often the difference between a benchmark win and a reliable deployment.

FAQ

Which has a larger context window, Grok 4.20 or Grok 4.20 Multi-Agent?

Grok 4.20 supports 2M tokens, while Grok 4.20 Multi-Agent supports 2M tokens. That gap matters most for long documents, large codebases, retrieval-heavy agents, and conversations where earlier context must remain visible.

Which is cheaper, Grok 4.20 or Grok 4.20 Multi-Agent?

Grok 4.20 is cheaper on tracked token pricing. Grok 4.20 costs $1.25/1M input and $2.5/1M output tokens. Grok 4.20 Multi-Agent costs $1.25/1M input and $2.5/1M output tokens. Provider discounts or batch pricing can still change the final bill.

Is Grok 4.20 or Grok 4.20 Multi-Agent open source?

Grok 4.20 is listed under Proprietary. Grok 4.20 Multi-Agent is listed under Proprietary. License labels affect whether you can self-host, redistribute weights, or rely only on hosted APIs, so confirm the upstream license before deployment.

Which is better for reasoning mode, Grok 4.20 or Grok 4.20 Multi-Agent?

Both Grok 4.20 and Grok 4.20 Multi-Agent expose reasoning mode. The better choice depends on benchmark fit, context budget, pricing, and whether your provider route exposes the same capability surface.

Which is better for function calling, Grok 4.20 or Grok 4.20 Multi-Agent?

Both Grok 4.20 and Grok 4.20 Multi-Agent expose function calling. The better choice depends on benchmark fit, context budget, pricing, and whether your provider route exposes the same capability surface.

Where can I run Grok 4.20 and Grok 4.20 Multi-Agent?

Grok 4.20 is available on xAI Console and OpenRouter. Grok 4.20 Multi-Agent is available on OpenRouter and xAI Console. Provider coverage can affect latency, region availability, compliance posture, and fallback options.

Continue comparing

Last reviewed: 2026-05-14. Data sourced from public model cards and provider documentation.