Gemini 3.1 Flash Lite is $1 cheaper per 1M input tokens (80% lower; 5x difference).
API cost decision in 10 seconds
NewGemini 3.1 Flash Lite vs Cogito v2.1 671B
Pick Gemini 3.1 Flash Lite when budget and context both matter.
Pricing data updated:
Prices normalized to USD per 1M tokens
Sample workload: 1M input + 500K output
Budget verdict
Pick Gemini 3.1 Flash Lite when budget and context both matter.
On the standard 1M input plus 500K output workload, Gemini 3.1 Flash Lite is estimated at $1 vs $1.88 for Cogito v2.1 671B, saving $0.88 (46.7% lower).
Cost-first pickGemini 3.1 Flash Lite
Context-first pickGemini 3.1 Flash Lite
Sample savings$0.8846.7%
10x traffic gap$8.75
Gemini 3.1 Flash Lite is cheaper on the standard workload and also has the larger context window. At 10x that traffic, the same price gap is about $8.75. Use the calculator below to replace the sample workload with your own token volume.
Cost sensitivity
Workload Sensitivity
Cost winner changes by workload shape: input-heavy / RAG favors Gemini 3.1 Flash Lite, balanced workload favors Gemini 3.1 Flash Lite, and output-heavy chatbot favors Cogito v2.1 671B.
| Workload shape | Token mix | Better pick | Gemini 3.1 Flash Lite | Cogito v2.1 671B |
|---|---|---|---|---|
| Input-heavy / RAG | 5M input + 500K output | Gemini 3.1 Flash Lite | $2 | $6.88 |
| Balanced workload | 1M input + 1M output | Gemini 3.1 Flash Lite | $1.75 | $2.5 |
| Output-heavy chatbot | 1M input + 5M output | Cogito v2.1 671B | $7.75 | $7.5 |
Cogito v2.1 671B is $0.25 cheaper per 1M output tokens (16.7% lower; 1.2x difference).
Gemini 3.1 Flash Lite has 920.58K more context (8.19x larger).
Gemini 3.1 Flash Lite is $0.88 cheaper on the standard workload (46.7% 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
Gemini 3.1 Flash Lite has the lower input price; Cogito v2.1 671B has the lower output price; Gemini 3.1 Flash Lite offers the larger context window. For the 1M input plus 500K output sample, Gemini 3.1 Flash Lite is cheaper for the standard workload.
For a 1M input token plus 500K output token workload, the estimated API cost is $1 for Gemini 3.1 Flash Lite and $1.88 for Cogito v2.1 671B.
Choose Gemini 3.1 Flash Lite when you care most about lower input-token price, and larger context window.
Choose Cogito v2.1 671B when you care most about lower output-token price.
- On the standard 1M input plus 500K output workload, Gemini 3.1 Flash Lite is estimated at $1 vs $1.88 for Cogito v2.1 671B, saving $0.88 (46.7% lower).
- Gemini 3.1 Flash Lite is $0.88 cheaper on the standard workload (46.7% lower).
- Gemini 3.1 Flash Lite is $1 cheaper per 1M input tokens (80% lower; 5x difference).
- Cogito v2.1 671B is $0.25 cheaper per 1M output tokens (16.7% lower; 1.2x difference).
- Gemini 3.1 Flash Lite has 920.58K more context (8.19x larger).
| Feature | NewGemini 3.1 Flash Lite (Google) | Cogito v2.1 671B (Deep Cogito) |
|---|---|---|
| Input Price prompt tokens per 1M | $0.25 | $1.25 |
| Completion Price per 1M tokens | $1.5 | $1.25 |
| Sample Workload Cost 1M input + 500K output | $1 | $1.88 |
| Context Window | 1.05M | 128K |
| Release Date |
Use-Case Decision Matrix
| Use case | Better pick | Why |
|---|---|---|
| Budget-constrained production | Gemini 3.1 Flash Lite | On the standard 1M input plus 500K output workload, Gemini 3.1 Flash Lite is estimated at $1 vs $1.88 for Cogito v2.1 671B, saving $0.88 (46.7% lower). |
| High-volume input processing | Gemini 3.1 Flash Lite | Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill. |
| Long responses and chatbots | Cogito v2.1 671B | Lower output-token price matters most when assistants generate many completion tokens. |
| RAG or long-document work | Gemini 3.1 Flash Lite | 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 3.1 Flash Lite when lower sample workload cost matters most: $0.
- Gemma 4 31B (free) can replace Gemini 3.1 Flash Lite when lower sample workload cost matters most: $0.
- Lyria 3 Pro Preview can replace Gemini 3.1 Flash Lite when lower sample workload cost matters most: $0.
- Lyria 3 Clip Preview can replace Gemini 3.1 Flash Lite 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.
- No popular competitor is currently available.
Cheaper alternatives
Review low-cost models sorted by a standard 1M input plus 500K output workload.
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