As Bitcoin's rally regained momentum in early October 2025, several leading AI models were once again asked to predict the cryptocurrency's closing prices for the final three months of the year. This exercise follows a successful September forecast round, where most models accurately placed Bitcoin's monthly close within the $118,500–$120,900 range. With Bitcoin hitting an intraday high of $123,855 on October 3, the chatbots were presented with the updated prompt: provide specific end-of-month closing figures for October, November, and December 2025, along with a concise rationale.
Deepseek (DeepThink Mode): Steady Climb
Deepseek's model, drawing on historical post-halving cycles and sustained institutional demand, projected a gradual appreciation through Q4. The closing estimates were: October: $127,500, November: $133,200, December: $139,800. The model cited typical year-end strength and reduced selling pressure as key drivers.
Venice AI: Strong Seasonal Gains
Venice AI offered a more optimistic outlook, with predictions of October: $125,000, November: $138,000, and December: $155,000. Its rationale highlighted October's historical average gain of 14.4% and November's 46% average surge since 2013, combined with bullish technical indicators and a projected Fed policy pivot.
ChatGPT 5 Instant: Accelerating Compound Growth
ChatGPT 5 Instant predicted a ramp-up in momentum: October: $124,800, November: $140,200, December: $165,500. The model assumed a monthly gain of ~13% accelerating into December, driven by institutional inflows and consensus year-end targets clustering around $145K–$180K.
Qwen 3-Max: Supply Shock and FOMO
Qwen 3-Max delivered the most aggressive forecast: October: $138,200, November: $152,600, December: $167,400. The model emphasized the post-halving supply shock (April 2024), ETF inflows, falling real interest rates, and technical breakouts at $130K and $150K that could trigger FOMO, pushing prices toward $170K before profit-taking caps the rally.
Le Chat: Institutional Demand and Year-End Rally
Le Chat forecasted October: $132,293, November: $147,527, and December: $155,082. Its rationale included a 15.6% monthly gain from early October levels, sustained institutional demand, and historical Q4 strength supported by ETF inflows.
ChatGPT 5 Thinking Mode: Gradual Grind Higher
In contrast, ChatGPT 5 Thinking offered a more conservative path: October: $121,900, November: $128,400, December: $136,800. It argued that Bitcoin was consolidating within $119K–$124K after a strong Q3, with higher lows and steady spot demand. While ETF net inflows, declining exchange balances, and stable hashrate support a gradual rise, tighter funding rates and periodic miner distribution cap upside. The model described a stair-step advance absent a major macro shock.
Models Without Specific Numbers
Grok 4 Expert Mode, Claude Sonnet 4.5, and Pi AI did not provide specific closing figures in this round. However, their general sentiment aligned with the bullish consensus.
Conclusion: Bots Are Bullish
Aggregating all models that provided data, the December 2025 closing price predictions range from $136,800 (ChatGPT 5 Thinking) to $167,400 (Qwen 3-Max). While the rationales vary—post-halving scarcity, ETF demand, year-end positioning, interest rate relief, and technical breakouts—the overall direction is unmistakably upward. Some models suggest a mid-quarter breather or a stair-step climb, but most point to a strong finish for Bitcoin in 2025. Call it silicon seasonality with conviction.