OpenAI cuts Bedrock GPT-5.6 Sol pricing by up to 33%

OpenAI cut API pricing for GPT-5.6 Sol on Amazon Bedrock to $4 per million input tokens and $20 per million output tokens, representing a 20% reduction on input and a 33.3% reduction on output. OpenAI confirmed the move on X, framing it as dropping 'API and credit pricing of GPT-5.6 Sol by over 20% for the next 3 months' as it pushes capability while improving efficiency. The promotional pricing runs at least through November 21, 2026, and extends earlier reductions applied to the Terra and Luna variants.

The cut lands amid a broader Bedrock push: AWS separately launched cross-region inference for all GPT-5.6 models (Sol, Terra, Luna) across more than 25 regions, using US-geographic and global inference profiles to raise throughput via the OpenAI and Converse APIs.

Strategically, this is a direct response to price pressure from Google's Gemini 3.7 Flash ($0.75/1M input) and xAI's Grok 4.6 (~$8/1M combined). Sol is a premium-tier model, so the cut narrows—but doesn't close—the gap to the low-cost challengers while defending OpenAI's enterprise Bedrock footprint.

The 'over the next 3 months' framing is the caveat: like Google's Flash pricing, this is promotional, not permanent, so enterprises standardizing on the discounted rate face a potential November repricing. A r/OpenAI thread ('Did GPT 5.6 Sol get secretly upgraded?', 211 upvotes) suggests users are also noticing quality changes alongside the price move. Watch whether OpenAI makes the cut permanent under competitive pressure.