gemini-1.5-pro · Google
Pioneered 2 Million token context window: processes entire codebases and hours of video in a single turn.
Last checked Aug 19, 2026. Calculations use the listed base rates; provider-specific tiers, cache writes, batch pricing, and long-context rules may differ. Note: Prompts >128k tokens bill at $2.50/$10.00. Context caching gives 75% discount. Confirm the current rate at the official provider source.
Input
$1.25
per 1M tokens
Output
$5.00
per 1M tokens
Cached input
$0.3125
per 1M tokens
Context window
2.1M
max output 8.2K
Gemini 1.5 Pro cost calculator
What Gemini 1.5 Pro costs per task
| Use case | Input tokens | Output tokens | Cost / request | Monthly @ 1K req/day |
|---|---|---|---|---|
| Customer support chatbot | 3,500 | 350 | $0.003828 | $114.844 |
| RAG / search-augmented answers | 8,000 | 500 | $0.00875 | $262.50 |
| AI coding assistant | 12,000 | 2,000 | $0.0183 | $547.50 |
| Document summarization | 25,000 | 600 | $0.0319 | $957.187 |
| Agentic workflow | 40,000 | 1,500 | $0.0331 | $993.75 |
| Content generation | 800 | 1,200 | $0.006775 | $203.25 |
| Data extraction & tagging | 2,000 | 250 | $0.003375 | $101.25 |
| Translation | 5,000 | 5,500 | $0.033 | $991.406 |
Assumes each use case's typical cacheable share of input. See full cost scenarios.
Compare with alternatives
| Model | Input /M | Output /M | Context | Chat request* |
|---|---|---|---|---|
| Gemini 1.5 Pro | $1.25 | $5.00 | 2.1M | $0.007125 |
| GPT-5.6 Sol | $5.00 | $30.00 | 1.1M | $0.035 |
| GPT-5.6 Terra | $2.00 | $12.00 | 1.1M | $0.014 |
| GPT-5.6 Luna | $0.20 | $1.20 | 1.1M | $0.0014 |
| GPT-5.6 Cyber | $12.50 | $75.00 | 1.1M | $0.0875 |
| GPT-5.5 Standard | $5.00 | $30.00 | 512K | $0.035 |
| GPT-5.5 Pro | $30.00 | $180.00 | 512K | $0.21 |
| GPT-5.4 Workhorse | $2.50 | $15.00 | 256K | $0.0175 |
| GPT-5.4 mini | $0.75 | $4.50 | 256K | $0.00525 |
*4,000 in + 800 out tokens, 50% cached input where available.
Related calculations
FAQ
Gemini 1.5 Pro costs $1.25 per 1M input tokens and $5.00 per 1M output tokens, with cached input at $0.3125 per 1M tokens. Verified Aug 19, 2026 against https://ai.google.dev/gemini-api/docs/pricing.
Gemini 1.5 Pro supports a 2,097,152-token context window with up to 8,192 output tokens per request, tokenized with sentencepiece.
At $1.25/M input and $5.00/M output, Gemini 1.5 Pro sits below GPT-5.6 Sol ($5.00/M in, $30.00/M out) — see the comparison table for full-workload differences.