Grok 4.20 Multi-Agent vs Tencent Hy3 Preview
Grok 4.20 Multi-Agent (2026) and Tencent Hy3 Preview (2026) are frontier-tier reasoning models from xAI and Tencent AI Lab. Grok 4.20 Multi-Agent ships a 2M-token context window, while Tencent Hy3 Preview ships a 262K-token context window. On pricing, Grok 4.20 Multi-Agent ranges from $1.25 to $2.50/1M input tokens by tier; Tencent Hy3 Preview costs $0.07/1M input tokens. This comparison covers specs, pricing, capabilities, benchmarks, provider availability, and production fit.
Grok 4.20 Multi-Agent fits 8x more tokens; pick it for long-context work and Tencent Hy3 Preview for tighter calls.
Decision scorecard
Local evidence first| Signal | Grok 4.20 Multi-Agent | Tencent Hy3 Preview |
|---|---|---|
| Best for | reasoning-heavy apps, multimodal apps, and tool-calling agents | reasoning-heavy apps and tool-calling agents |
| Decision fit | RAG, Agents, and Long context | Coding, RAG, and Agents |
| Context window | 2M | 262K |
| Cheapest output | $2.50/1M tokens | $0.26/1M tokens |
| Provider routes | 3 tracked | 1 tracked |
| Shared benchmarks | 0 rows | 0 rows |
Decision tradeoffs
- Grok 4.20 Multi-Agent has the larger context window for long prompts, retrieval packs, or transcript analysis.
- Grok 4.20 Multi-Agent has broader tracked provider coverage for fallback and procurement flexibility.
- Grok 4.20 Multi-Agent uniquely exposes Vision, Multimodal, and Structured outputs in local model data.
- Local decision data tags Grok 4.20 Multi-Agent for RAG, Agents, and Long context.
- Tencent Hy3 Preview has the lower cheapest tracked output price at $0.26/1M tokens.
- Local decision data tags Tencent Hy3 Preview for Coding, RAG, and Agents.
Monthly cost at traffic
Estimate token spend from the cheapest tracked input and output route or tier on this page.
Grok 4.20 Multi-Agent
$1,625
Cheapest tracked route/tier: xAI Console
Tencent Hy3 Preview
$118
Cheapest tracked route/tier: OpenRouter
Estimated monthly gap: $1,507. Batch, cache, alternate speed tiers, and negotiated pricing are excluded from this local estimate.
Switch friction
- Provider overlap exists on OpenRouter; start route-level A/B tests there.
- Tencent Hy3 Preview is $2.24/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
- Check replacement coverage for Vision, Multimodal, and Structured outputs before moving production traffic.
- Provider overlap exists on OpenRouter; start route-level A/B tests there.
- Grok 4.20 Multi-Agent is $2.24/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
- Grok 4.20 Multi-Agent adds Vision, Multimodal, and Structured outputs in local capability data.
Specs
| Specification | ||
|---|---|---|
| Released | 2026-03-10 | 2026-04-22 |
| Context window | 2M | 262K |
| Parameters | — | 295B |
| Architecture | - | dense moe hybrid |
| License | Proprietary | Proprietary |
| Knowledge cutoff | 2024-11 | - |
Pricing and availability
| Pricing attribute | Grok 4.20 Multi-Agent | Tencent Hy3 Preview |
|---|---|---|
| Input price |
| $0.07/1M tokens |
| Output price |
| $0.26/1M tokens |
| Providers |
Capabilities
| Capability | Grok 4.20 Multi-Agent | Tencent Hy3 Preview |
|---|---|---|
| Vision | Yes | No |
| Multimodal | Yes | No |
| Reasoning | Yes | Yes |
| Function calling | Yes | Yes |
| Tool use | Yes | Yes |
| Structured outputs | Yes | No |
| Code execution | No | No |
| IDE integration | No | No |
| Computer use | No | No |
| Parallel agents | No | No |
Benchmarks
No shared benchmark rows are currently sourced for this pair.
Deep dive
The capability footprint differs most on vision: Grok 4.20 Multi-Agent, multimodal input: Grok 4.20 Multi-Agent, and structured outputs: Grok 4.20 Multi-Agent. Both models share reasoning mode, function calling, and tool use, so the practical split is not just feature count. Use those differences to decide whether the page is about raw model quality, agentic coding support, multimodal ingestion, or predictable structured API behavior.
For cost, Grok 4.20 Multi-Agent lists tiered pricing: 0-200,001t is $1.25/1M input and $2.50/1M output; 200,001t+ is $2.50/1M input and $5/1M output, while Tencent Hy3 Preview lists $0.07/1M input and $0.26/1M output tokens on the cheapest tracked provider. A 70/30 input-output blend puts Tencent Hy3 Preview lower by about $1.50 per million blended tokens. For tiered rows, this cheapest-track view can understate interactive or fast-lane spend, so compare the tier you will actually use. Availability is 3 providers versus 1, so concentration risk also matters.
Choose Grok 4.20 Multi-Agent when long-context analysis, larger context windows, and broader provider choice are central to the workload. Choose Tencent Hy3 Preview when provider fit and lower input-token cost are more important. For production, rerun your own prompts through the exact provider, region, and tool stack you plan to ship.
FAQ
Which has a larger context window, Grok 4.20 Multi-Agent or Tencent Hy3 Preview?
Grok 4.20 Multi-Agent supports 2M tokens, while Tencent Hy3 Preview supports 262K 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 Multi-Agent or Tencent Hy3 Preview?
Grok 4.20 Multi-Agent lists tiered pricing: 0-200,001t is $1.25/1M input and $2.50/1M output; 200,001t+ is $2.50/1M input and $5/1M output. Tencent Hy3 Preview lists $0.07/1M input and $0.26/1M output tokens on the cheapest tracked provider. Compare the tier you will actually use; cheap async pricing can overstate savings for interactive workflows. Provider discounts or batch pricing can still change the final bill.
Is Grok 4.20 Multi-Agent or Tencent Hy3 Preview open source?
Grok 4.20 Multi-Agent is listed under Proprietary. Tencent Hy3 Preview 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 vision, Grok 4.20 Multi-Agent or Tencent Hy3 Preview?
Grok 4.20 Multi-Agent has the clearer documented vision signal in this comparison. If vision is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ.
Which is better for multimodal input, Grok 4.20 Multi-Agent or Tencent Hy3 Preview?
Grok 4.20 Multi-Agent has the clearer documented multimodal input signal in this comparison. If multimodal input is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ.
Where can I run Grok 4.20 Multi-Agent and Tencent Hy3 Preview?
Grok 4.20 Multi-Agent is available on OpenRouter, xAI Console, and Vercel AI Gateway. Tencent Hy3 Preview is available on OpenRouter. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
Continue comparing
Last reviewed: 2026-05-22. Data sourced from public model cards and provider documentation.