According to the search results, the value of Venom in Blox Fruits varies depending on the source. Here are some estimates:

• The Venom Fruit costs $3,000,000 or 2,450 Robux from the Blox Fruit Dealer.
• The value of Venom is estimated to be around $6,000,000 and the permanent value is estimated to be around $114,000,000.
• The current Venom value is estimated to be around 60,00,000 and for the Permanent Fruit value is estimated to be around 20,05,00,000.
• Venom is considered a highly sought-after fruit and is often compared to other high-tier fruits like Dough, Leopard, Dragon, Shadow, and Spirit.

Based on these estimates, it seems that Venom is a valuable fruit in Blox Fruits. However, the exact value of Venom can vary depending on the trade and the current demand for the fruit.