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Claude Haiku 4.5 vs GPT-4.1— Pricing & Token Cost Comparison

Side-by-side API pricing and tokenizer details for Claude Haiku 4.5 (Anthropic) and GPT-4.1 (OpenAI).

Side-by-side pricing

FeatureClaude Haiku 4.5GPT-4.1
ProviderAnthropicOpenAI
Input (per 1M tokens)$0.800$2.00
Output (per 1M tokens)$4.00$8.00
Context cachingYes — 90% off cached tokensNo
Batch API discountNot available50% off
Context window200K tokens1M tokens
TokenizerAnthropic tokenizero200k_base (tiktoken)

Real-world cost example

1,000 API requests per month, each with 500 input tokens and 200 output tokens (500K input + 200K output total).

Claude Haiku 4.5
$1.2000
Input: $0.4000 + Output: $0.8000
GPT-4.1
$2.6000
Input: $1.0000 + Output: $1.6000

Claude Haiku 4.5 is 54% cheaper for this workload — saving $1.4000 per month at this volume.

Frequently asked questions

Is Claude Haiku 4.5 cheaper than GPT-4.1?
Yes, Claude Haiku 4.5 is cheaper for the typical workload above. At $0.800/1M input and $4.00/1M output tokens, it costs $1.2000 versus $2.6000 for GPT-4.1 — a 54% difference. Costs scale linearly, so larger workloads amplify this gap.
What is the context window of Claude Haiku 4.5 vs GPT-4.1?
Claude Haiku 4.5 supports a 200K token context window. GPT-4.1 supports a 1M token context window. A larger context window lets you include more text — documents, conversation history, or code — in a single API call.
Do Claude Haiku 4.5 or GPT-4.1 support context caching or batch discounts?
Claude Haiku 4.5 supports context caching (90% off repeated tokens). It does not offer a batch API discount. GPT-4.1 does not support context caching. It offers a 50% Batch API discount.

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Data provenance: Prices sourced directly from provider pricing pages.

Claude Haiku 4.5 prices last verified from Anthropic pricing page.

GPT-4.1 prices last verified from OpenAI pricing page.

Prices may change. Always verify against the provider's current pricing page before making purchasing decisions.