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gpt-5.6-sol-pro API price — 2 gateways compared

Cheapest right now: Glama at $2.50/MTok in — 1.6× cheaper than the priciest gateway.

from $2.50 per million input tokens · 1.6× spread between gateways · updated continually

Gateway	$ in /MTok	$ out /MTok	Context	Input price history	Model ID
Glama	$2.50	$15.00	1,050,000		openai/gpt-5.6-sol-pro	use
OpenRouter fees	$4.00	$20.00	1,050,000		openai/gpt-5.6-sol-pro	use

Fees beyond the token price

OpenRouter: No markup on token prices (provider pass-through), but credit purchases cost 5.5% via card ($0.80 minimum) or 5% via crypto; BYOK usage above the monthly allowance is charged 5%. source

2026-09-29 openrouter listed openai-gpt-5.6-sol-pro-output at 20.0 usd_per_mtok
2026-09-29 openrouter listed openai-gpt-5.6-sol-pro-input at 4.0 usd_per_mtok
2026-09-28 openrouter delisted openai-gpt-5.6-sol-pro-output
2026-09-28 openrouter delisted openai-gpt-5.6-sol-pro-input
2026-08-21 openrouter cut openai-gpt-5.6-sol-pro-output 33.3%: 15.0 → 10.0 usd_per_mtok
2026-08-21 openrouter cut openai-gpt-5.6-sol-pro-input 20.0%: 2.5 → 2.0 usd_per_mtok
2026-08-18 openrouter listed openai-gpt-5.6-sol-pro-output at 15.0 usd_per_mtok
2026-08-18 openrouter listed openai-gpt-5.6-sol-pro-input at 2.5 usd_per_mtok
2026-08-17 openrouter delisted openai-gpt-5.6-sol-pro-output
2026-08-17 openrouter delisted openai-gpt-5.6-sol-pro-input

The cheapest tracked gateway charges $2.50 per million input tokens and $15.00 per million output tokens (Glama). Prices refresh continually.

Glama for input tokens and Glama for output tokens, among the 2 gateways we track.

Yes — the most expensive tracked gateway charges 1.6× the cheapest for input tokens. Identical model, identical tokens, different bill.