gaClosedreleased Jul 9, 2026

GPT-5.6 Sol

API pricing · verified Aug 19, 2026

Input from $/1M

$5.00

Output from $/1M

$30.00

Context

1.05M

Providers

textvisiontoolsjson-modereasoning

Provider	Input $/1M	Output $/1M	Cached input $/1M	Updated	Source
OpenAI	$5.00	$30.00	$0.5	Aug 19, 2026	official page ↗

Arena & benchmarks

Board	Arena score	Rank	Votes	Snapshot
Text Overall gpt-5.6-sol-xhigh	1481±6	#19	15,558	Aug 13, 2026
WebDev gpt-5.6-sol-xhigh (codex-harness)	1622±8	#7	8,595	Aug 15, 2026
Coding gpt-5.6-sol-xhigh	1526±9	#15	4,436	Aug 13, 2026
Hard Prompts gpt-5.6-sol-xhigh	1504±7	#16	10,306	Aug 13, 2026

Benchmark	Score	Tested	Note	Source
Terminal-Bench 2.1	88.8	Jul 9, 2026	base, Codex harness; Ultra config: 91.9; vendor-reported, METR flagged high reward-hacking	source ↗
GPQA Diamond	94.1	Aug 3, 2026	from Alibaba's official Qwen3.8-Max release table (cross-vendor)	source ↗
Humanity's Last Exam	47.2	Aug 3, 2026	from Alibaba's official Qwen3.8-Max release table (cross-vendor)	source ↗
SWE-bench Pro	64.6	Aug 3, 2026	OpenAI has not published SWE-bench Pro; figure from Alibaba's vendor-run table	source ↗

Last verified: Aug 19, 2026. Prices change — always confirm on the official page before budgeting.Compare →Estimate monthly cost →