Claude Haiku 5.5 vs Step 5 Preview

Specs, per-token pricing, and live benchmark scores — refreshed daily from our benchmark database.

Specs & pricing

Claude Haiku 5.5Step 5 Preview
CompanyAnthropicStepFun
ReleasedOct 2026Oct 2026
Context window1.0M1.0M
Input /1M tokens$0.1$1
Output /1M tokens$0.5$2.7
Open weightsNoNo

Benchmarks

BenchmarkClaude Haiku 5.5Step 5 Preview
Speed (tok/s)235 tok/s—

Scores come from published leaderboards and official model cards (sources listed on the benchmarks page) and refresh daily. Pricing via vendor pages and OpenRouter.