Verified against the provider's official pricing page on Oct 9, 2026. Official pricing page Long-context and separately billed token prices, where shown, are list prices compiled by models.dev (checked Oct 10, 2026, 09:00 UTC).
Monthly cost by workload
Workload
Gemini 3.8 Flash
Seed 2.0 Pro
Chatbot1,000 in / 500 out tokens, 10,000 requests a day
$787.50/mo
$600.00/mo
RAG8,000 in / 500 out tokens, 5,000 requests a day
$1,181/mo
$825.00/mo
Coding agent50,000 in / 2,000 out tokens, 1,000 requests a day, 80% cached input
$540.00/mo
$450.00/mo
Cost = input tokens × input price + output tokens × output price, 30 days a month. Cached input uses the cache read price. Cache write fees are not included.
Context and capabilities
Gemini 3.8 Flash
Seed 2.0 Pro
Context
1,048,576 tokens
256,000 tokens
Max output
65,536 tokens
128,000 tokens
Input
text, image, video, audio, pdf
text, image, video
Tool calling
Yes
Yes
Reasoning
Yes
Yes
Structured outputs
Yes
No
Questions
What is the price difference between Gemini 3.8 Flash and Seed 2.0 Pro?
Gemini 3.8 Flash: $0.75 per 1M input tokens and $3.75 per 1M output tokens. Seed 2.0 Pro: $0.50 per 1M input tokens and $3.00 per 1M output tokens. For the Chatbot workload (1,000 in / 500 out tokens, 10,000 requests a day), that is about $787.50 per month for Gemini 3.8 Flash and $600.00 for Seed 2.0 Pro.
Which has the longer context window, Gemini 3.8 Flash or Seed 2.0 Pro?
Gemini 3.8 Flash has the longer context window: up to 1,048,576 tokens, compared with 256,000 for Seed 2.0 Pro.
Do Gemini 3.8 Flash and Seed 2.0 Pro have prompt caching and batch prices?
Gemini 3.8 Flash: cached input $0.075 per 1M tokens; batch $0.375 per 1M input tokens and $1.875 per 1M output tokens. Seed 2.0 Pro: cached input $0.10 per 1M tokens; batch $0.25 per 1M input tokens and $1.50 per 1M output tokens.