Decision model price war: OpenAI at $0.10 vs Perplexity at $0.02 per 1M tokens

Seven decision-model APIs launched in about five weeks: OpenAI Decisions (gpt-6-luna) at $0.10 per 1M input tokens, Perplexity pplx-decider-v1.1-27b at $0.02 with Apache 2.0 open weights, and Microsoft-Decision-1 at $0.042. All return probabilities instead of prose and charge nothing for output. The price spread across structurally identical APIs has reached 5x.

• OpenAI Decisions API: $0.10 per 1M input tokens, closed weights
• Perplexity v1.1-27b: $0.02 per 1M, Apache 2.0, 262k context
• Microsoft-Decision-1: $0.042 per 1M, specs undisclosed
• All seven models bill $0 for output tokens