Conversation assumptions
Build a typical chat
Message overhead is included in the estimate.
Model context
Conversation Turns Budget
Estimate how many back-and-forth messages fit before older conversation context begins dropping.
Current provider pricingNothing uploadedFree
Verified reference
Calculation reference
Reference values · verified Oct 2026
| Model | Context | ≈ Words | Typical 600-token turns |
|---|---|---|---|
| GPT-6.1 Sol | 1.05M | ≈789,000 | ≈1,750 |
| Claude Sonnet 5.5 | 1M | ≈750,000 | ≈1,666 |
| Gemini 4 Argon | 1M | ≈750,000 | ≈1,666 |
Clear answers
Frequently asked questions
Once a conversation exceeds the context window, older messages may be removed or summarized to make room for new ones.
Keep calculating