Hy4 preview vs Grok 4.3
Benchmark Performance
Available Benchmarks
Technical Differences
Side-by-Side Facts
| Field | Hy4 preview | Grok 4.3 |
|---|---|---|
| Developer | Tencent | xAI |
| Family | Hy4 | Grok 4 |
| Model | Hy4 preview | Grok 4.3 |
| Version | Hy4 preview | Grok 4.3 |
| Lifecycle | preview | active |
| Released | 2026-08-28 | 2026-06-17 |
| Knowledge cutoff | Unknown | Unknown |
| Input modalities | Text | Text, Image |
| Output modalities | Text | Text |
| Context window | 1,000K | 1,000K |
| Total parameters | 770B | Unknown |
| Active parameters | 49B | Unknown |
| License | apache-2.0 | Unknown |
| Open weights | Yes | No |
| API available | Yes | Yes |
| Self-hostable | Yes | No |
| Provider access | Openrouter (Standard) | Xai (Standard) |
| Capabilities | chat, generation, reasoning, tools | chat, generation, reasoning, structured_outputs, tools |
14 comparable fields · 11 material differences · Pair passes the primary-source comparison gate
Hy4 preview Capabilities
Grok 4.3 Capabilities
Internal Comparison Graph
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|---|---|---|---|
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Hy4 previewTencent | vs |  GLM-5.3Z.ai | cross-developer peerstext |
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| vs | Hy4 previewTencent | cross-developer peerstext |
Primary Evidence
Sources and Freshness
Questions
Hy4 preview vs Grok 4.3 FAQs
Is Hy4 preview or Grok 4.3 better for coding?+
This comparison does not currently contain a protocol-matched coding benchmark for both Hy4 preview and Grok 4.3, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.
Which is cheaper, Hy4 preview or Grok 4.3?+
Hy4 preview is $0.834 and Grok 4.3 is $1.25 per million tokens, so Hy4 preview is cheaper on this metric. Hy4 preview is $2.501 and Grok 4.3 is $2.50 per million tokens, so Grok 4.3 is cheaper on this metric.
Which has a larger context window, Hy4 preview or Grok 4.3?+
Neither model has a larger sourced context window in this comparison. Hy4 preview is 1,000K and Grok 4.3 is 1,000K.
Which performs better in benchmarks, Hy4 preview or Grok 4.3?+
There is no overall benchmark winner: At least two independently verified, protocol-matched benchmarks are required for an overall winner.
Can Hy4 preview or Grok 4.3 be self-hosted?+
Hy4 preview is the only model in this pair currently marked as self-hostable. Hy4 preview is open weight; Grok 4.3 is not marked open weight.
Can Hy4 preview and Grok 4.3 understand images?+
Hy4 preview is not documented with image input; Grok 4.3 is documented with image input. This reflects supported input modalities, not vision quality.
Which can generate longer answers, Hy4 preview or Grok 4.3?+
Neither has a larger sourced maximum output. Hy4 preview is — and Grok 4.3 is —.
Do Hy4 preview and Grok 4.3 support reasoning and tool use?+
Hy4 preview: reasoning and tool calling. Grok 4.3: reasoning, tool calling, and image input. Feature support does not establish relative quality.
Which is available from more inference providers, Hy4 preview or Grok 4.3?+
Hy4 preview has 1 sourced provider route; Grok 4.3 has 1, a tie.
Which offers better value, Hy4 preview or Grok 4.3?+
There is no universal value winner. Compare the input and output prices above with the matched benchmark result for your workload: cheaper tokens can be offset by different quality, token usage, latency, or provider availability.