Gemini 3 Pro vs Claude Haiku 4.5 for email drafting: which is better in 2026?
A head-to-head look at Gemini 3 Pro and Claude Haiku 4.5 for email drafting. Benchmarks via artificialanalysis.ai, pricing as of May 2026. Compare AI models like these inside Admix.
Quick verdict
For email drafting in May 2026, Claude Haiku 4.5 edges out Gemini 3 Pro on the inputPricePerMTok metric. Best tone-to-price ratio for client-facing email.
Side-by-side specs
| Spec | Gemini | Haiku |
|---|---|---|
| Intelligence index | 75.6 | 65.8 |
| Coding index | 73.4 | 66.2 |
| Context window | 2M tokens | 500K tokens |
| Speed (tok/s) | 165 | 205 |
| Input $/M | $2.50 | $0.80 |
| Output $/M | $10.00 | $4.00 |
| Released | Feb 12, 2026 | Mar 19, 2026 |
How they handle email drafting
Gemini 3 Pro: Largest practical context window. The main caveat is coding scores below claude and gpt-5.
Claude Haiku 4.5: Best tone-to-price ratio for client-facing email.
Cost per 1,000 queries
Assuming 1,500 input and 800 output tokens per query:
- Gemini 3 Pro: $11.75 per 1,000 queries
- Claude Haiku 4.5: $4.40 per 1,000 queries
Verdict by sub-task
- Best raw quality on email drafting:
- Best price: Claude Haiku 4.5
- Longest context: Gemini 3 Pro
- Fastest: Claude Haiku 4.5
FAQ
Is Gemini 3 Pro better than Claude Haiku 4.5 for email drafting?
On May 2026 benchmarks (artificialanalysis.ai), Claude Haiku 4.5 ranks higher than Gemini 3 Pro for email drafting on the inputPricePerMTok metric. The gap is small enough that the choice often comes down to price, context length, and tone.
Which is cheaper, Gemini 3 Pro or Claude Haiku 4.5?
Gemini 3 Pro costs $2.50 input and $10.00 output per million tokens. Claude Haiku 4.5 costs $0.80 input and $4.00 output per million tokens.
Can I use both Gemini and Haiku in one app?
Yes. Admix is a multi model AI chat aggregator that lets you run Gemini 3 Pro and Claude Haiku 4.5 side by side under one subscription.
Sources
Benchmarks from artificialanalysis.ai (May 2026).
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