📋 AI Changelog

GPT-5.6 Sol

✅ Active

Flagship of the GPT-5.6 family for complex reasoning, coding, and agentic workloads; succeeded by GPT-6 Sol

Provider list prices

Context Window
1.1M
Input Price
$4.00/1M
Promotional rate through November 21, 2026
Output Price
$20.00/1M
Released
Jul 9, 2026

Capabilities

textvisionreasoningcodefunction-callingjson-mode

Crazyrouter API catalogue

Crazyrouter prices: $2.6 / $13

Catalogue checked: 2026-10-10T14:22:39+00:00. USD per 1M tokens, default group. The first context tier is shown; long contexts may cost more. This is a gateway catalogue snapshot, not a provider release announcement.

Get API Access →Current API models
curl https://crazyrouter.com/v1/chat/completions \
  -H "Authorization: Bearer $CRAZYROUTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"gpt-5.6-sol","messages":[{"role":"user","content":"Hello"}],"max_tokens":64}'

Version History

Sep 22, 2026Update

Succeeded by GPT-6 Sol, which launched at half the price

Aug 21, 2026Pricing Change

API and credit pricing cut by more than 20% to $4.00 per 1M input tokens and $20.00 per 1M output tokens for three months, through at least November 21, 2026

Aug 10, 2026Update

GPT-5.6-Cyber variant launched for cyber-defense partners

Jul 9, 2026New Release

GPT-5.6 Sol released to the public as OpenAI's flagship and strongest coding and cybersecurity model, introducing the Sol/Terra/Luna capability-tier naming

Jul 9, 2026Pricing Change

Launch pricing set at $5.00 per 1M input tokens and $30.00 per 1M output tokens; Fast mode on Cerebras at $12.50 input and $75.00 output

Jun 26, 2026Update

GPT-5.6 Sol, Terra, and Luna made available as a limited preview to about 20 trusted partner organizations while under U.S. government review