GPT-5.6 Sol vs Claude Opus 5.5 API pricing

They have the same standard per-token price, so the bill is identical for any workload; check the fine print for long-context or other differences. Prices last checked 2026-10-15.

GPT-5.6 Sol (OpenAI)Claude Opus 5.5 (Anthropic)
Input $/1M tokens$4.0$4.0
Output $/1M tokens$20.0$20.0
Context——
Our tier (1–4)34

Example monthly bills

WorkloadGPT-5.6 SolClaude Opus 5.5Cheaper
Chat / Q&A
10M in / 2M out per month
$80.00$80.00Same cost
Coding
20M in / 5M out per month
$180.00$180.00Same cost
Output-heavy (reasoning, long answers)
10M in / 10M out per month
$240.00$240.00Same cost

Fine print

Cost only, not quality. “Tier” is our rough capability judgment, not a benchmark, and different tokenizers count the same text differently. Reasoning models may bill extra thinking tokens as output. Official sources: OpenAI, Anthropic.

See all models on the full price table, the OpenAI and Anthropic pricing pages, or try the savings calculator with your own numbers.

Weekly "AI price drops" email

Placeholder only — this form collects nothing.