Gemini 2.5 Flash vs Hy4 preview
Benchmark Performance
Available Benchmarks
Technical Differences
Side-by-Side Facts
| Field | Gemini 2.5 Flash | Hy4 preview |
|---|---|---|
| Developer | Google DeepMind | Tencent |
| Family | Gemini 2 5 | Hy4 |
| Model | Gemini 2.5 Flash | Hy4 preview |
| Version | Gemini 2.5 Flash | Hy4 preview |
| Lifecycle | active | preview |
| Released | Unknown | 2026-08-28 |
| Knowledge cutoff | 2025-01-01 | Unknown |
| Input modalities | Text, Image, Video, Audio | Text |
| Output modalities | Text | Text |
| Context window | 1,049K | 1,000K |
| Total parameters | Unknown | 770B |
| Active parameters | Unknown | 49B |
| License | Unknown | apache-2.0 |
| Open weights | No | Yes |
| API available | Yes | Yes |
| Self-hostable | No | Yes |
| Provider access | Google AI (Standard), Google Gemini (Standard) | Openrouter (Standard) |
| Capabilities | chat, generation, reasoning, tools | chat, generation, reasoning, tools |
13 comparable fields · 10 material differences · Pair passes the primary-source comparison gate
Gemini 2.5 Flash Capabilities
Hy4 preview Capabilities
Internal Comparison Graph
Related Comparisons
| A | Pair | B | Context |
|---|---|---|---|
Gemini 2.5 FlashGoogle DeepMind | vs |  GPT-6 AstraOpenAI | cross-developer peerstext |
Claude Fable 5.1Anthropic | vs | Gemini 2.5 FlashGoogle DeepMind | cross-developer peerstext |
Gemini 2.5 FlashGoogle DeepMind | vs | Gemini 3.1 ProGoogle DeepMind | family variantstext |
 DeepSeek-V4-ProDeepSeek | vs | Gemini 2.5 FlashGoogle DeepMind | cross-developer peerstext |
Gemini 2.5 FlashGoogle DeepMind | vs | Grok 4.6xAI | cross-developer peerstext |
Gemini 2.5 FlashGoogle DeepMind | vs |  Qwen3.8-MaxQwen | cross-developer peerstext |
Gemini 2.5 FlashGoogle DeepMind | vs |  Kimi-K3Moonshot AI | cross-developer peerstext |
 MiniMax-M3MiniMax | vs | Gemini 2.5 FlashGoogle DeepMind | cross-developer peerstext |
Gemini 2.5 FlashGoogle DeepMind | vs |  GLM-5.3Z.ai | cross-developer peerstext |
Seed 2.1 ProByteDance Seed | vs | Gemini 2.5 FlashGoogle DeepMind | cross-developer peerstext |
Gemini 2.5 FlashGoogle DeepMind | vs |  Mistral Large 3Mistral AI | cross-developer peerstext |
Gemini 2.5 FlashGoogle DeepMind | vs | cross-developer peerstext |
Primary Evidence
Sources and Freshness
Questions
Gemini 2.5 Flash vs Hy4 preview FAQs
Is Gemini 2.5 Flash or Hy4 preview better for coding?+
This comparison does not currently contain a protocol-matched coding benchmark for both Gemini 2.5 Flash and Hy4 preview, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.
Which is cheaper, Gemini 2.5 Flash or Hy4 preview?+
Gemini 2.5 Flash is $0.30 and Hy4 preview is $0.834 per million tokens, so Gemini 2.5 Flash is cheaper on this metric. Gemini 2.5 Flash is $2.50 and Hy4 preview is $2.501 per million tokens, so Gemini 2.5 Flash is cheaper on this metric.
Which has a larger context window, Gemini 2.5 Flash or Hy4 preview?+
Gemini 2.5 Flash has the larger sourced context window. Gemini 2.5 Flash supports 1,049K and Hy4 preview supports 1,000K.
Which performs better in benchmarks, Gemini 2.5 Flash or Hy4 preview?+
There is no overall benchmark winner: At least two independently verified, protocol-matched benchmarks are required for an overall winner.
Can Gemini 2.5 Flash or Hy4 preview be self-hosted?+
Hy4 preview is the only model in this pair currently marked as self-hostable. Gemini 2.5 Flash is not marked open weight; Hy4 preview is open weight.
Can Gemini 2.5 Flash and Hy4 preview understand images?+
Gemini 2.5 Flash is documented with image input; Hy4 preview is not documented with image input. This reflects supported input modalities, not vision quality.
Which can generate longer answers, Gemini 2.5 Flash or Hy4 preview?+
Neither has a larger sourced maximum output. Gemini 2.5 Flash is 66K and Hy4 preview is —.
Do Gemini 2.5 Flash and Hy4 preview support reasoning and tool use?+
Gemini 2.5 Flash: reasoning, tool calling, and image input. Hy4 preview: reasoning and tool calling. Feature support does not establish relative quality.
Which is available from more inference providers, Gemini 2.5 Flash or Hy4 preview?+
Gemini 2.5 Flash has 2 sourced provider routes; Hy4 preview has 1, so Gemini 2.5 Flash has broader tracked availability.
Which offers better value, Gemini 2.5 Flash or Hy4 preview?+
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.