Tokenomics: A Community Leaderboard for Opus 4.7 Token Costs
Opus 4.7 landed Thursday. By Saturday, the first question every heavy API user was asking — is 4.7 cheaper or more expensive than 4.6 on the exact same request — had a community answer. Bill Chambers shipped tokens.billchambers.me, and the Hacker News front page pushed it to 519 points.
The tool is narrow by design. Paste a request transcript — JSON, labeled conversation, or plain text — and the page shows the request-token delta and the dollar-cost delta between Opus 4.6 and Opus 4.7. Four templates cover the common shapes: conversation, code, prose, blog post. Submissions feed an anonymous community leaderboard so everyone can see the drift on real inputs, not just toy benchmarks.
Under the hood it uses Anthropic's own token-counting SDK, so the numbers match what Anthropic's billing pipeline will actually charge. Prompt text gets sent to Anthropic for counting but not stored. Open source. Not affiliated with Anthropic.
The reason this resonates. When Anthropic ships a new flagship, the marketing benchmarks don't tell you the part that matters — whether your specific workload gets silently 15% more expensive because 4.7 tokenizes your prompts differently. Independent community measurement is the only thing that closes that gap. Chambers' tool is the first structured version of that measurement for the 4.6 to 4.7 transition. Expect to see it every time a new Opus ships.
https://tokens.billchambers.me
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The tool is narrow by design. Paste a request transcript — JSON, labeled conversation, or plain text — and the page shows the request-token delta and the dollar-cost delta between Opus 4.6 and Opus 4.7. Four templates cover the common shapes: conversation, code, prose, blog post. Submissions feed an anonymous community leaderboard so everyone can see the drift on real inputs, not just toy benchmarks.
Under the hood it uses Anthropic's own token-counting SDK, so the numbers match what Anthropic's billing pipeline will actually charge. Prompt text gets sent to Anthropic for counting but not stored. Open source. Not affiliated with Anthropic.
The reason this resonates. When Anthropic ships a new flagship, the marketing benchmarks don't tell you the part that matters — whether your specific workload gets silently 15% more expensive because 4.7 tokenizes your prompts differently. Independent community measurement is the only thing that closes that gap. Chambers' tool is the first structured version of that measurement for the 4.6 to 4.7 transition. Expect to see it every time a new Opus ships.
https://tokens.billchambers.me
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