Seed 1.6 Flash is $0.22 cheaper per 1M input tokens (75% lower; 4x difference).
API cost decision in 10 seconds
🔥Gemini 2.5 Flash vs Seed 1.6 Flash
Pick Seed 1.6 Flash for lower cost; pick Gemini 2.5 Flash only if the larger context window matters more.
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Data confirmed:
Prices normalized to USD per 1M tokens
Sample workload: 1M input + 500K output
Budget verdict
Pick Seed 1.6 Flash for lower cost; pick Gemini 2.5 Flash only if the larger context window matters more.
On the standard 1M input plus 500K output workload, Seed 1.6 Flash is estimated at $0.22 vs $1.55 for Gemini 2.5 Flash, saving $1.33 (85.5% lower).
Cost-first pickSeed 1.6 Flash
Context-first pickGemini 2.5 Flash
Sample savings$1.3385.5%
10x traffic gap$13.25
Gemini 2.5 Flash has more context, but Seed 1.6 Flash saves $1.33 on the standard workload. At 10x that traffic, the same price gap is about $13.25. Use the calculator below to replace the sample workload with your own token volume.
Cost sensitivity
Workload Sensitivity
Seed 1.6 Flash stays cheaper across input-heavy, balanced, and output-heavy sample workloads.
| Workload shape | Token mix | Better pick | Gemini 2.5 Flash | Seed 1.6 Flash |
|---|---|---|---|---|
| Input-heavy / RAG | 5M input + 500K output | Seed 1.6 Flash | $2.75 | $0.53 |
| Balanced workload | 1M input + 1M output | Seed 1.6 Flash | $2.8 | $0.38 |
| Output-heavy chatbot | 1M input + 5M output | Seed 1.6 Flash | $12.8 | $1.57 |
Seed 1.6 Flash is $2.2 cheaper per 1M output tokens (88% lower; 8.33x difference).
Gemini 2.5 Flash has 786.43K more context (4x larger).
Seed 1.6 Flash is $1.33 cheaper on the standard workload (85.5% lower).
Estimate your workload cost
Your Workload Cost
This estimate uses normalized public API pricing per 1M tokens. It is a planning aid, not a billing quote. Verify provider pricing, limits, and terms before production use.
Quick Decision
Seed 1.6 Flash has the lower input price; Seed 1.6 Flash has the lower output price; Gemini 2.5 Flash offers the larger context window. For the 1M input plus 500K output sample, Seed 1.6 Flash is cheaper for the standard workload.
For a 1M input token plus 500K output token workload, the estimated API cost is $1.55 for Gemini 2.5 Flash and $0.22 for Seed 1.6 Flash.
Choose Gemini 2.5 Flash when you care most about larger context window.
Choose Seed 1.6 Flash when you care most about lower input-token price, and lower output-token price.
- On the standard 1M input plus 500K output workload, Seed 1.6 Flash is estimated at $0.22 vs $1.55 for Gemini 2.5 Flash, saving $1.33 (85.5% lower).
- Seed 1.6 Flash is $1.33 cheaper on the standard workload (85.5% lower).
- Seed 1.6 Flash is $0.22 cheaper per 1M input tokens (75% lower; 4x difference).
- Seed 1.6 Flash is $2.2 cheaper per 1M output tokens (88% lower; 8.33x difference).
- Gemini 2.5 Flash has 786.43K more context (4x larger).
| Feature | 🔥Gemini 2.5 Flash (Google) | Seed 1.6 Flash (ByteDance Seed) |
|---|---|---|
| Input Price prompt tokens per 1M | $0.3 | $0.075 |
| Completion Price per 1M tokens | $2.5 | $0.3 |
| Sample Workload Cost 1M input + 500K output | $1.55 | $0.22 |
| Context Window | 1.05M | 262.14K |
| Release Date | ||
| Popularity | #15 |
Use-Case Decision Matrix
| Use case | Better pick | Why |
|---|---|---|
| Budget-constrained production | Seed 1.6 Flash | On the standard 1M input plus 500K output workload, Seed 1.6 Flash is estimated at $0.22 vs $1.55 for Gemini 2.5 Flash, saving $1.33 (85.5% lower). |
| High-volume input processing | Seed 1.6 Flash | Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill. |
| Long responses and chatbots | Seed 1.6 Flash | Lower output-token price matters most when assistants generate many completion tokens. |
| RAG or long-document work | Gemini 2.5 Flash | A larger context window leaves more room for retrieved passages, conversation history, or source files. |
Related Alternatives
- Gemma 4 26B A4B (free) can replace Gemini 2.5 Flash when lower sample workload cost matters most: $0.
- Gemma 4 31B (free) can replace Gemini 2.5 Flash when lower sample workload cost matters most: $0.
- Lyria 3 Pro Preview can replace Gemini 2.5 Flash when lower sample workload cost matters most: $0.
- Lyria 3 Clip Preview can replace Gemini 2.5 Flash when lower sample workload cost matters most: $0.
- Llama 4 Scout offers 10M context with $0.23 sample workload cost.
- Owl Alpha offers 1.05M context with $0 sample workload cost.
- DeepSeek V4 Flash · DeepSeek · #1
- Hy3 preview · Tencent · #2
- Claude Opus 4.7 · Anthropic · #3
- Claude Sonnet 4.6 · Anthropic · #4
Cheaper alternatives
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