Free Models Router is free for input tokens while Gemma 4 31B costs $0.12 per 1M tokens.
API cost decision in 10 seconds
Gemma 4 31B vs Free Models Router
Pick Free Models Router for lower cost; pick Gemma 4 31B only if the larger context window matters more.
Pricing data updated:
Prices normalized to USD per 1M tokens
Sample workload: 1M input + 500K output
Budget verdict
Pick Free Models Router for lower cost; pick Gemma 4 31B only if the larger context window matters more.
On the standard 1M input plus 500K output workload, Free Models Router is estimated at $0 vs $0.3 for Gemma 4 31B, saving $0.3 (100% lower).
Cost-first pickFree Models Router
Context-first pickGemma 4 31B
Sample savings$0.3100%
10x traffic gap$3.05
Gemma 4 31B has more context, but Free Models Router saves $0.3 on the standard workload. At 10x that traffic, the same price gap is about $3.05. Use the calculator below to replace the sample workload with your own token volume.
Free Models Router is free for output tokens while Gemma 4 31B costs $0.37 per 1M tokens.
Gemma 4 31B has 62.14K more context (1.31x larger).
Free Models Router is free for the standard workload while the other model is estimated at $0.3.
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
Free Models Router has the lower input price; Free Models Router has the lower output price; Gemma 4 31B offers the larger context window. For the 1M input plus 500K output sample, Free Models Router is cheaper for the standard workload.
For a 1M input token plus 500K output token workload, the estimated API cost is $0.3 for Gemma 4 31B and $0 for Free Models Router.
Choose Gemma 4 31B when you care most about larger context window.
Choose Free Models Router when you care most about lower input-token price, and lower output-token price.
- On the standard 1M input plus 500K output workload, Free Models Router is estimated at $0 vs $0.3 for Gemma 4 31B, saving $0.3 (100% lower).
- Free Models Router is free for the standard workload while the other model is estimated at $0.3.
- Free Models Router is free for input tokens while Gemma 4 31B costs $0.12 per 1M tokens.
- Free Models Router is free for output tokens while Gemma 4 31B costs $0.37 per 1M tokens.
- Gemma 4 31B has 62.14K more context (1.31x larger).
| Feature | Gemma 4 31B (Google) | Free Models Router (OpenRouter) |
|---|---|---|
| Input Price prompt tokens per 1M | $0.12 | $0 |
| Completion Price per 1M tokens | $0.37 | $0 |
| Sample Workload Cost 1M input + 500K output | $0.3 | $0 |
| Context Window | 262.14K | 200K |
| Release Date | ||
| Popularity Rank current rank | Unranked | Unranked |
Use-Case Decision Matrix
| Use case | Better pick | Why |
|---|---|---|
| Budget-constrained production | Free Models Router | On the standard 1M input plus 500K output workload, Free Models Router is estimated at $0 vs $0.3 for Gemma 4 31B, saving $0.3 (100% lower). |
| High-volume input processing | Free Models Router | Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill. |
| Long responses and chatbots | Free Models Router | Lower output-token price matters most when assistants generate many completion tokens. |
| RAG or long-document work | Gemma 4 31B | A larger context window leaves more room for retrieved passages, conversation history, or source files. |
Related Alternatives
- Gemma 4 26B A4B (free) can replace Gemma 4 31B when lower sample workload cost matters most: $0.
- Gemma 4 31B (free) can replace Gemma 4 31B when lower sample workload cost matters most: $0.
- Lyria 3 Pro Preview can replace Gemma 4 31B when lower sample workload cost matters most: $0.
- Lyria 3 Clip Preview can replace Gemma 4 31B 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 offers 1.05M context with $0.22 sample workload cost.
- Gemini 2.5 Flash Lite offers 1.05M context with $0.3 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
Review low-cost models ranked by a standard 1M input plus 500K output workload.
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