Model Tracker
Gemini 1.5 Flash
Gemini 1.5 Flash is an AI model made by Google. Google released it on 10 May 2024. It is retired. Its context window is 1,048,576 tokens.
Gemini 1.5 Flash is an AI model made by Google. Google released it on 10 May 2024. It is retired. Its context window is 1,048,576 tokens. Its longest answer is 8,192 tokens.
- Released
- 10 May 2024 — ai.google.dev, read 16 October 2026
- Status
- Retired — ai.google.dev, read 16 October 2026
- Retired
- Not confirmed: two readings disagree: 2025-09-29 and 2025-09-24
- Takes
- Not confirmed: two readings disagree: text, image, audio, video and text, image, audio, video, code
- Returns
- Text — ai.google.dev, read 16 October 2026
- Open weights
- Not confirmed: The maker's reviewed pages do not state whether Gemini 1.5 Flash has open weights.
- Licence
- Not confirmed: The maker's reviewed pages do not name a licence for Gemini 1.5 Flash.
- Context window
- 1,048,576 tokens — ai.google.dev, read 16 October 2026
- Longest answer
- 8,192 tokens — ai.google.dev, read 16 October 2026
- Knowledge cutoff
- Not confirmed: The reviewed Gemini 1.5 Flash model details do not print a knowledge cutoff.
- API price, input
- Not confirmed: The current pricing page does not list Gemini 1.5 Flash, and the reviewed maker pages provide no current standard input price for this shut-down model.
- API price, output
- Not confirmed: The current pricing page does not list Gemini 1.5 Flash, and the reviewed maker pages provide no current standard output price for this shut-down model.
- Where
- Not confirmed: Google states that Gemini 1.5 Flash was shut down and that a shut-down endpoint is no longer available; the reviewed pages do not state any current availability category for it.
- Parameters
- Not confirmed: The maker's reviewed pages do not publish a parameter count for Gemini 1.5 Flash.
- Model card
- Not confirmed: No Gemini 1.5 Flash model card or system card was found on the maker's reviewed pages.
Benchmarks
Measured by others, not by the maker: each score with the name the measurer gives the model and the setting it ran, its day and its licence.
Epoch AI
- Epoch Capabilities Index, Gemini 1.5 Flash (Sep 2024): 129.4 (123.1–131.3), as of 19 October 2026
- Epoch Capabilities Index, Gemini 1.5 Flash (May 2024): 122.6 (116.7–124.6), as of 19 October 2026
- GPQA Diamond, gemini-1.5-flash-002: 47.3% (± 2.8), run 27 January 2025
- GPQA Diamond, gemini-1.5-flash-001: 40.4% (± 2.4), run 27 January 2025
- OTIS Mock AIME 2024–2025, gemini-1.5-flash-002: 16.3% (± 4.1), run 25 February 2025
- OTIS Mock AIME 2024–2025, gemini-1.5-flash-001: 3.9% (± 1.4), run 25 February 2025
Epoch AI, ‘Capabilities & benchmarking’, epoch.ai/benchmarks, CC BY 4.0: Epoch AI’s own runs and its Capabilities Index. Data · CC BY 4.0
Questions
When was Gemini 1.5 Flash released?
Google released Gemini 1.5 Flash on 10 May 2024.
What is the context window of Gemini 1.5 Flash?
The context window of Gemini 1.5 Flash is 1,048,576 tokens, as Google prints it.
More from Google
- CodeGemma
- DiffusionGemma
- Gemini 1.0 Pro Vision
- Gemini 1.5 Flash-8B
- Gemini 1.5 Pro
- Gemini 2.0 Flash
- Gemini 2.0 Flash Experimental
- Gemini 2.0 Flash-Lite
- Gemini 2.5 Computer Use
- Gemini 2.5 Deep Think
- Gemini 2.5 Flash
- Gemini 2.5 Flash Image
- Gemini 2.5 Flash Live
- Gemini 2.5 Flash TTS
- Gemini 2.5 Flash-Lite
- Gemini 2.5 Pro
- Gemini 2.5 Pro TTS
- Gemini 3 Flash
- Gemini 3 Pro
- Gemini 3.1 Flash Live
- Gemini 3.1 Flash TTS
- Gemini 3.1 Flash-Lite
- Gemini 3.1 Pro
- Gemini 3.5 Flash
Sources
- Release notes | Gemini API | Google AI for Developers (read 16 October 2026)
- Gemini deprecations | Gemini API | Google AI for Developers (read 16 October 2026)
- Models | Gemini API | Google AI for Developers (read 16 October 2026)
- Gemini Developer API pricing | Gemini API | Google AI for Developers (read 16 October 2026)