feat(benchmark): update Sonnet 5.5 / Opus 5.5 pricing and repoint aliases - #18
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Sonnet 5.5 is $2.00/M input, $10/M output, $0.20/M cache read (10% of base) and $2.50/M cache write (1.25x base). The existing "sonnet" alias keeps pointing at Sonnet 4.6. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01HX8KccseqQb2rUserM2BDT
"sonnet" now resolves to claude-sonnet-5-5 pricing; the previous model stays available as the explicit "sonnet-4-6" alias. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01HX8KccseqQb2rUserM2BDT
"opus" (and the --model default) now resolves to claude-opus-5-5 pricing; opus-4-6/4-7/4-8 remain available as explicit aliases. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01HX8KccseqQb2rUserM2BDT
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01HX8KccseqQb2rUserM2BDT
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Summary
sonnetalias to Sonnet 5.5 and theopusalias to Opus 5.5.opusis also the--modeldefault.sonnet-4-6,opus-4-6,opus-4-7,opus-4-8.sonnet-5-5as an explicit alias, matchingopus-5-5.DefaultCountTokensModelininternal/tokensfromclaude-sonnet-4-6toclaude-sonnet-5-5.PricingSonnet/TokenCountModelSonnettoPricingSonnet46/TokenCountModelSonnet46.PricingOpuskeeps its name and now documents that it is the shared Opus 4.x pricing.--modelhelp text anddocs/benchmark.md.Behavior change
Running
cc-session benchmarkwith no--model,--model opusor--model sonnetnow uses 5.5 pricing and tokenizer, so cost numbers differ from earlier runs. To reproduce old results use--model opus-4-8or--model sonnet-4-6. The default count_tokens model is also now Sonnet 5.5.Test plan
gofmtcleango vet ./...go test ./...🤖 Generated with Claude Code
https://claude.ai/code/session_01HX8KccseqQb2rUserM2BDT