Seed 1.6 Flash is $4.92 cheaper per 1M input tokens (98.5% lower; 66.7x difference).
API cost decision in 10 seconds
NewGPT Chat Latest vs Seed 1.6 Flash
Pick Seed 1.6 Flash for lower cost; pick GPT Chat Latest only if the larger context window matters more.
Budget verdict
Pick Seed 1.6 Flash for lower cost; pick GPT Chat Latest 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 $20 for GPT Chat Latest, saving $19.77 (98.9% lower).
GPT Chat Latest has more context, but Seed 1.6 Flash saves $19.77 on the standard workload. At 10x that traffic, the same price gap is about $197.75. 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 | GPT Chat Latest | Seed 1.6 Flash |
|---|---|---|---|---|
| Input-heavy / RAG | 5M input + 500K output | Seed 1.6 Flash | $40 | $0.53 |
| Balanced workload | 1M input + 1M output | Seed 1.6 Flash | $35 | $0.38 |
| Output-heavy chatbot | 1M input + 5M output | Seed 1.6 Flash | $155 | $1.57 |
Seed 1.6 Flash is $29.7 cheaper per 1M output tokens (99% lower; 100x difference).
GPT Chat Latest has 137.86K more context (1.53x larger).
Seed 1.6 Flash is $19.77 cheaper on the standard workload (98.9% 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; GPT Chat Latest 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 $20 for GPT Chat Latest and $0.22 for Seed 1.6 Flash.
Choose GPT Chat Latest 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 $20 for GPT Chat Latest, saving $19.77 (98.9% lower).
- Seed 1.6 Flash is $19.77 cheaper on the standard workload (98.9% lower).
- Seed 1.6 Flash is $4.92 cheaper per 1M input tokens (98.5% lower; 66.7x difference).
- Seed 1.6 Flash is $29.7 cheaper per 1M output tokens (99% lower; 100x difference).
- GPT Chat Latest has 137.86K more context (1.53x larger).
| Feature | NewGPT Chat Latest (OpenAI) | Seed 1.6 Flash (ByteDance Seed) |
|---|---|---|
| Input Price prompt tokens per 1M | $5 | $0.075 |
| Completion Price per 1M tokens | $30 | $0.3 |
| Sample Workload Cost 1M input + 500K output | $20 | $0.22 |
| Context Window | 400K | 262.14K |
| Release Date |
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 $20 for GPT Chat Latest, saving $19.77 (98.9% 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 | GPT Chat Latest | A larger context window leaves more room for retrieved passages, conversation history, or source files. |
Related Alternatives
- gpt-oss-120b (free) can replace GPT Chat Latest when lower sample workload cost matters most: $0.
- gpt-oss-20b (free) can replace GPT Chat Latest when lower sample workload cost matters most: $0.
- gpt-oss-20b can replace GPT Chat Latest when lower sample workload cost matters most: $0.1.
- gpt-oss-120b can replace GPT Chat Latest when lower sample workload cost matters most: $0.13.
- Llama 4 Scout offers 10M context with $0.23 sample workload cost.
- Grok 4.20 Multi-Agent offers 2M context with $5 sample workload cost.
- Grok 4.20 offers 2M context with $2.5 sample workload cost.
- OpenAI GPT Latest offers 1.05M context with $20 sample workload cost.
- No popular competitor is currently available.
Cheaper alternatives
Review low-cost models sorted by a standard 1M input plus 500K output workload.
Open cheapest modelsLarger context alternatives
Find models with larger context windows for RAG, long documents, and codebase review.
Open largest context modelsProvider catalogs
Compare models within provider hubs before choosing a final API vendor.
Open provider hubsOpenAI catalog
Review all tracked OpenAI models before deciding whether this matchup is the right shortlist.
Open OpenAI modelsByteDance Seed catalog
Check other ByteDance Seed models with comparable pricing, context, or release timing.
Open ByteDance Seed modelsGPT Chat Latest points to OpenAI's stable API alias `chat-latest` that always resolves to the latest Instant chat model used in ChatGPT. As OpenAI rolls out new Instant model updates...
Seed 1.6 Flash is an ultra-fast multimodal deep thinking model by ByteDance Seed, supporting both text and visual understanding. It features a 256k context window and can generate outputs of...