Claude 3.5 HaikuvsGemini 2.5 Pro
Claude 3.5 Haiku | Gemini 2.5 Pro | |
|---|---|---|
| API pricingUSD per 1M tokens · lower wins · base tier | ||
Input priceWhat you pay for everything you send the model — your question, plus any documents or earlier conversation you include with it. | — | $1.25 |
Output priceWhat you pay for the text the model writes back. It is normally the dearer half: producing an answer costs more than reading one. | — | $10.00 |
Cached input priceA reduced rate for text you send over and over. If every request starts with the same instructions or the same document, the provider keeps a copy ready and charges less to read it again. | — | $0.125 |
| Benchmarks | ||
BullshitBench v2Nonsense detection — Given a confidently-worded but nonsensical prompt, does the AI spot that it makes no sense and push back — instead of playing along and inventing an answer? The score is how often it clearly called out the nonsense. Higher is better. | 50% | 20% |
SWE-Bench VerifiedCoding — Real coding tasks pulled from open-source projects — the AI has to find and fix actual bugs. A human-checked version of the original SWE-Bench. Higher is better. | 40.6% | 59.6% |
GPQA DiamondScience — Graduate-level science questions in biology, physics, and chemistry — hard enough that subject-matter PhDs score around 65%. Higher is better. | 41.6% | 86.4% |
| BenchmarksPublished by one model only | ||
MMMUMultimodal — Tests the AI on understanding images and text together across many college subjects. Higher is better. | — | 68% |
Arena Elo (Code)Community preference (code) — Like the text arena, but people vote on which AI writes better code. The votes become a chess-style Elo rating on arena.ai. Higher is better. | — | 1224 |
| Overview | ||
| Company | Anthropic | |
| Release date | Oct 22 2024 | Mar 25 2025 |
| Access | Proprietary | Proprietary |
Frequently asked questions
Gemini 2.5 Pro leads Claude 3.5 Haiku on 2 of the 3 benchmarks they both report (BullshitBench v2, SWE-Bench Verified, GPQA Diamond). Only Gemini 2.5 Pro has a verified first-party API price: $1.25 per million input tokens and $10.00 per million output tokens. No pay-as-you-go API rate is tracked for Claude 3.5 Haiku. Claude 3.5 Haiku shipped 154 days before Gemini 2.5 Pro, so benchmark comparisons should account for the intervening progress.
Published specifications for these two models are limited — see each model page for the latest details.
On BullshitBench v2, Claude 3.5 Haiku leads at 50% vs Gemini 2.5 Pro at 20%. On SWE-Bench Verified, Gemini 2.5 Pro leads at 59.6% vs Claude 3.5 Haiku at 40.6%. On GPQA Diamond, Gemini 2.5 Pro leads at 86.4% vs Claude 3.5 Haiku at 41.6%.
Claude 3.5 Haiku was released by Anthropic on Oct 22 2024.
Gemini 2.5 Pro was released by Google on Mar 25 2025.
Gemini 2.5 Pro leads on SWE-Bench Verified — Claude 3.5 Haiku 40.6% vs Gemini 2.5 Pro 59.6%.
Gemini 2.5 Pro leads on GPQA Diamond — Claude 3.5 Haiku 41.6% vs Gemini 2.5 Pro 86.4%.
Only Gemini 2.5 Pro has a verified first-party API price: $1.25 per million input tokens and $10.00 per million output tokens. No pay-as-you-go API rate is tracked for Claude 3.5 Haiku. Rates are pay-as-you-go API prices verified on August 18, 2026.