Seed 1.8 vs Gemini 3.5 Flash
At a Glance
| Compare | Seed 1.8ByteDance Seed |  Gemini 3.5 FlashGoogle DeepMind |
|---|---|---|
| Intelligence, Cost, and Efficiency | ||
| IntelligenceHigher is better · MM Intelligence v2.5 | UnrankedNot in the 46-model eligible cohort | #15 of 4672.1 score · 3/3 sources · complete |
| CostLower is better · Published-token output estimate | UnrankedNot in the 44-model eligible cohort | #25 of 44$0.140 per LiveBench case |
| EfficiencyHigher is better · MM Efficiency v1.5 | UnrankedNot in the 38-model eligible cohort | #15 of 3856.8 score · 3/3 sources · complete |
| Pricing and Limits | ||
| Input priceFrom · USD / 1M tokens | Not reported | $1.50Google AI ↗ · Aug 29, 2026 |
| Output priceFrom · USD / 1M tokens | Not reported | $9.00Google AI ↗ · Aug 29, 2026 |
| Context windowMaximum documented tokens | Not reported | 1,049K |
| Model facts checked | Sep 3, 2026View model evidence → | Aug 29, 2026View model evidence → |
Token prices are the lowest available sourced USD rates; input and output may use different providers. Cost ranking estimates output spend on LiveBench, not a full request bill. Ranking methodology →
Available Benchmarks
Side-by-Side Facts
| Field | Seed 1.8 | Gemini 3.5 Flash |
|---|---|---|
| Developer | ByteDance Seed | Google DeepMind |
| Family | Seed 1 8 | Gemini 3 |
| Model | Seed 1.8 | Gemini 3.5 Flash |
| Version | Seed 1.8 | Gemini 3.5 Flash |
| Lifecycle | active | active |
| Released | Unknown | Unknown |
| Knowledge cutoff | Unknown | Unknown |
| Input modalities | Text, Image | Text, Image, Video, Audio, Document |
| Output modalities | Text | Text |
| Context window | Unknown | 1,049K |
| Total parameters | Unknown | Unknown |
| Active parameters | Unknown | Unknown |
| License | Unknown | Unknown |
| Open weights | No | No |
| API available | Yes | Yes |
| Self-hostable | No | No |
| Provider access | Unknown | Google AI (Standard), Google Gemini (Standard) |
| Capabilities | chat, generation, reasoning, tools | chat, generation, reasoning, tools |
Seed 1.8 Capabilities
Gemini 3.5 Flash Capabilities
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Primary Evidence
Sources and Freshness
Questions
Seed 1.8 vs Gemini 3.5 Flash FAQs
Is Seed 1.8 or Gemini 3.5 Flash better for coding?+
This comparison does not currently contain a protocol-matched coding benchmark for both Seed 1.8 and Gemini 3.5 Flash, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.
Which is cheaper, Seed 1.8 or Gemini 3.5 Flash?+
Only Gemini 3.5 Flash has a directly sourced input price: $1.50 per million tokens. Only Gemini 3.5 Flash has a directly sourced output price: $9.00 per million tokens.
Which has a larger context window, Seed 1.8 or Gemini 3.5 Flash?+
Neither model has a larger sourced context window in this comparison. Seed 1.8 is — and Gemini 3.5 Flash is 1,049K.
Which performs better in benchmarks, Seed 1.8 or Gemini 3.5 Flash?+
There is no overall benchmark winner: At least two independently verified, protocol-matched benchmarks are required for an overall winner.
Can Seed 1.8 or Gemini 3.5 Flash be self-hosted?+
Both models have the same recorded self-hosting status: unsupported. Seed 1.8 is not marked open weight; Gemini 3.5 Flash is not marked open weight.
Can Seed 1.8 and Gemini 3.5 Flash understand images?+
Seed 1.8 is documented with image input; Gemini 3.5 Flash is documented with image input. This reflects supported input modalities, not vision quality.
Which can generate longer answers, Seed 1.8 or Gemini 3.5 Flash?+
Neither has a larger sourced maximum output. Seed 1.8 is — and Gemini 3.5 Flash is 66K.
Do Seed 1.8 and Gemini 3.5 Flash support reasoning and tool use?+
Seed 1.8: reasoning, tool calling, and image input. Gemini 3.5 Flash: reasoning, tool calling, and image input. Feature support does not establish relative quality.
Which is available from more inference providers, Seed 1.8 or Gemini 3.5 Flash?+
Seed 1.8 has 0 sourced provider routes; Gemini 3.5 Flash has 2, so Gemini 3.5 Flash has broader tracked availability.
Which offers better value, Seed 1.8 or Gemini 3.5 Flash?+
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.