Home / Compare / Claude Haiku 4.5 vs GPT-5.6 Sol

Claude Haiku 4.5 vs GPT-5.6 Sol

For a typical chat reply (2,000 tokens in, 400 out), GPT-5.6 Sol costs 2.0× as much as Claude Haiku 4.5: $8.00 against $4.00 per 1,000 requests at list price on 2026-09-28.

Claude Haiku 4.5GPT-5.6 Sol
Input, per 1M tokens$1.00$2.00
Output, per 1M tokens$5.00$10.00
Context window200K1.05M
Classification or routing (600 tokens in, 10 out), per 1,000$0.65$1.30
Chat reply (2,000 in, 400 out), per 1,000$4.00$8.00
Retrieval-augmented answer (8,000 in, 500 out), per 1,000$10.50$21.00
Confidence signalnono
Tool callingyesyes
BANKING77, correct of 400301not measured

Which one should carry your traffic?

If Claude Haiku 4.5 answers your requests as well as GPT-5.6 Sol, moving that traffic saves 50% on chat-shaped requests. Averages cannot tell you whether it does for your requests. Claude Haiku 4.5 does not expose a confidence signal through OpenRouter, so Gimbix would test it as a full replacement rather than a first answer.

Claude Haiku 4.5 profile · GPT-5.6 Sol profile · Measure it on your traffic