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Claude Haiku 4.5 vs GPT-4o-mini: API Pricing Compared — Which Should You Route To? (2026)

2026-08-28·2 min read·ClawRouters Team
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TL;DR — Haiku 4.5 costs ~7–8× GPT-4o-mini ($1/$5 vs $0.15/$0.60) — the two best-known budget tiers are not actually in the same tier. Every number below is from our weekly-verified pricing tracker (verified 2026-08-26).

Pricing side by side (per 1M tokens, USD)

| Model | Provider | Input | Output | |-------|----------|-------|--------| | Claude Haiku 4.5 | Anthropic | $1 | $5 | | GPT-4o-mini | OpenAI | $0.15 | $0.6 |

Verified 2026-08-26 against official rate cards — the tracker keeps the change log.

What a real month costs

At a standard workload of 10M input + 2M output tokens/month:

On this mix, GPT-4o-mini is the cheaper column (7.4× gap). Your ratio will differ — run your own mix through the LLM cost calculator.

Choose Claude Haiku 4.5 if

your 'cheap' tasks still need real capability — Haiku 4.5 handles reasoning-lite work (structured extraction with judgment, decent chat) that sits above mini's ceiling.

Choose GPT-4o-mini if

true bulk: at $0.15/$0.60, GPT-4o-mini is the default answer for classification, routing decisions, tagging, and dedup at scale.

Routing decision card

Per-model detail: Claude Haiku 4.5 deep dive · GPT-4o-mini deep dive

Part of the LLM model comparison index. Prices move fast in 2026 — the tracker logs every change with dates.

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