Tokx Production Glossary

Your input is 9,000 tokens but max_length is 8,192. What are your truncation options?

Someone confuses 'sequence length' with 'context window'. How do you correct them?

You change one word in the system prompt and prompt caching breaks. Why?

You pad a batch to equal length. How does the model know to ignore the filler tokens?

A chat template wraps every turn with BOS and EOS tokens. Why does the model need them?

You are fine-tuning Llama 3 8B on variable length instruction data. Which padding strategy and side do you pick?

You are about to ship a feature that calls GPT-5.5 per request. Walk through how you estimate the token cost before launch.