Claude Haiku 4.5 vs Gemini 2.5 Flash — Side-by-side pricing
Side-by-side API pricing and tokenizer details for Claude Haiku 4.5 (Anthropic) and Gemini 2.5 Flash (Google).
Side-by-side pricing
| Feature | Claude Haiku 4.5 | Gemini 2.5 Flash |
|---|---|---|
| Provider | Anthropic | |
| Input (per 1M tokens) | $1.00 | $0.300 |
| Output (per 1M tokens) | $5.00 | $2.50 |
| Context caching | Yes — 90% off cached tokens | Yes — 90% off cached tokens |
| Batch API discount | 50% off | 50% off |
| Context window | 200K tokens | 1M tokens |
| Tokenizer | Anthropic tokenizer | Gemini tokenizer |
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
$1.5000
Input: $0.5000 +Output: $1.0000
Gemini 2.5 Flash
$0.6500
Input: $0.1500 +Output: $0.5000
Gemini 2.5 Flash is 57% cheaper for this workload — saving $0.8500 per month at this volume.
Frequently asked questions
No, Gemini 2.5 Flash is cheaper for the typical workload above. At $0.300/1M input and $2.50/1M output tokens, it costs $0.6500 versus $1.5000 for Claude Haiku 4.5 — a 57% difference.
Claude Haiku 4.5 supports a 200K token context window. Gemini 2.5 Flash 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.
Claude Haiku 4.5 supports context caching (90% off repeated tokens). It offers a 50% Batch API discount. Gemini 2.5 Flash supports context caching (90% off repeated tokens). It offers a 50% Batch API discount.
No, they use different tokenizers. Claude Haiku 4.5 uses the Anthropic tokenizer, while Gemini 2.5 Flash uses Gemini tokenizer. Different tokenizers split text differently, so the same prompt will produce different token counts on each model — the effective cost difference may be larger or smaller than the per-token price difference alone suggests.
Claude Haiku 4.5 (Anthropic): $1 input / $5 output per 1M tokens. Gemini 2.5 Flash (Google): $0.3 input / $2.5 output per 1M tokens. Rates shown before caching or batch discounts.
For an 80% output / 20% input workload — typical for code generation or long-form writing — Claude Haiku 4.5 costs $4.2000 per 1M total tokens and Gemini 2.5 Flash costs $2.0600. Gemini 2.5 Flash is 51% cheaper for this pattern. For your exact ratio, paste a real prompt into the calculator above.
Claude Haiku 4.5 has a 200K-token context window — approximately 150K words or ~600 pages of standard text. Gemini 2.5 Flash has a 1M-token context window — approximately 750K words or ~3K pages. (Estimates assume ~0.75 words per token.)
Calculate costs for your actual prompt
Paste your prompt into the calculator and get exact token counts using each model's real tokenizer — all in your browser.
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