MODELS
Gemini 1.5 Pro
Google's 2024 long-context champion — 2M tokens before anyone else.
Specs
- Context window
- 2,000,000
- Max output
- 8,192
- Modalities
- text, image, audio, video
- Tool use
- ✓
- Vision
- ✓
- Streaming
- ✓
- License
- proprietary
- Released
- 2024-02-15
Pricing
- Input / 1M
- $1.25
- Output / 1M
- $5.00
- Cached input / 1M
- $0.31
Cost estimate
Gemini 1.5 Pro is Google's February 2024 release that first put 2M-token context in production hands — entire codebases, hour-long videos, multi-document RAG without chunking. Native multimodal (text/image/audio/video) at $1.25/$5. Superseded by Gemini 2.5 Pro on most axes but still selected for its mature long-context behaviour and Google Cloud integration.
Editor's verdict
If you're already on Vertex AI and have legacy 1.5 Pro prompts, no rush to migrate — but new builds should pick 2.5 Pro at the same price tier with stronger reasoning and tool use. The 2M-context advantage is now matched by 2.5 Pro at the same price. Worth keeping on the radar for ultra-long-context evals where 1.5 Pro behaviour is the documented baseline.
Reviews
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Last updated: 2026-04-29