Free Models Router is free for input tokens while GPT Chat Latest costs $5 per 1M tokens.
API cost decision in 10 seconds
NewGPT Chat Latest vs Free Models Router
Pick Free Models Router for lower cost; pick GPT Chat Latest 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 GPT Chat Latest 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 $20 for GPT Chat Latest, saving $20 (100% lower).
Cost-first pickFree Models Router
Context-first pickGPT Chat Latest
Sample savings$20100%
10x traffic gap$200
GPT Chat Latest has more context, but Free Models Router saves $20 on the standard workload. At 10x that traffic, the same price gap is about $200. Use the calculator below to replace the sample workload with your own token volume.
Cost sensitivity
Workload Sensitivity
Free Models Router stays cheaper across input-heavy, balanced, and output-heavy sample workloads.
| Workload shape | Token mix | Better pick | GPT Chat Latest | Free Models Router |
|---|---|---|---|---|
| Input-heavy / RAG | 5M input + 500K output | Free Models Router | $40 | $0 |
| Balanced workload | 1M input + 1M output | Free Models Router | $35 | $0 |
| Output-heavy chatbot | 1M input + 5M output | Free Models Router | $155 | $0 |
Free Models Router is free for output tokens while GPT Chat Latest costs $30 per 1M tokens.
GPT Chat Latest has 200K more context (2x larger).
Free Models Router is free for the standard workload while the other model is estimated at $20.
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; GPT Chat Latest 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 $20 for GPT Chat Latest and $0 for Free Models Router.
Choose GPT Chat Latest 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 $20 for GPT Chat Latest, saving $20 (100% lower).
- Free Models Router is free for the standard workload while the other model is estimated at $20.
- Free Models Router is free for input tokens while GPT Chat Latest costs $5 per 1M tokens.
- Free Models Router is free for output tokens while GPT Chat Latest costs $30 per 1M tokens.
- GPT Chat Latest has 200K more context (2x larger).
| Feature | NewGPT Chat Latest (OpenAI) | Free Models Router (OpenRouter) |
|---|---|---|
| Input Price prompt tokens per 1M | $5 | $0 |
| Completion Price per 1M tokens | $30 | $0 |
| Sample Workload Cost 1M input + 500K output | $20 | $0 |
| Context Window | 400K | 200K |
| Release Date |
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 $20 for GPT Chat Latest, saving $20 (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 | 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.
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