AtmoRouter publishes 2026 Claude API price comparison against Anthropic list rates
AtmoRouter published a pricing walkthrough comparing Anthropic's official Claude rates with its live catalogue prices, showing Sonnet 4.6 from $0.3975 input and $1.9875 output per million tokens versus Anthropic's $3 and $15 list price.
Why it matters
The post, dated November 6, 2026, lists AtmoRouter's lowest catalogue tiers for several Claude models, including Sonnet 5.5 from $0.15 input per million tokens and Haiku 4.5 from $0.125. AtmoRouter notes that higher tiers also exist and that its live models catalogue remains the source of truth.
To make the numbers concrete, the article models a coding agent running 400 turns a day at 12,000 input and 400 output tokens. By AtmoRouter's arithmetic, that costs about $2.23 per user-day at the lowest Sonnet 4.6 tier, compared with roughly $16.80 at Anthropic list price, and about $0.85 if 80 percent of input is a cache hit billed at 10 percent.
The company describes the post as a vendor-authored walkthrough, not an independent benchmark. Developers using Claude Code or the Anthropic SDK can test it by changing the base URL, but should verify actual tiers and cache hits in their own usage logs.