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Step 5 Preview
Gemini 1.5 Flash
Gemini 1.5 Flash is a proprietary model from Google. It ranks #264 of 351 on the LMArena text leaderboard with a rating of 1287.
- Developer
- Google DeepMind
- Released
- Oct 20, 2026
- Context window
- —
- Price in / out, per 1M tokens
- —
- Weights
- Proprietary
- Inputs
- —
- Reasoning
- —
- Tool use
- —
Benchmarks
| Benchmark | Score bar | Accuracy | Rank | Cost / test |
|---|---|---|---|---|
| LiveCodeBenchCoding | 36.91% | 134 / 143 | $0.075 / $0.3 | |
| GPQA DiamondReasoning | 45.96% | 129 / 138 | $0.075 / $0.3 | |
| MMLU-ProReasoning | 65.61% | 130 / 138 | $0.075 / $0.3 | |
| AIMEReasoning | 17.29% | 82 / 96 | $0.075 / $0.3 | |
| MMMUReasoning | 57.19% | 87 / 93 | $0.075 / $0.3 |
Vals AI, as of Oct 24, 2026.
LMArena, by category
| Leaderboard | Rating | Rank | Votes |
|---|---|---|---|
| TextLMArena | 1287 | 264 / 351 | 34.9K |
| CodingLMArena | 1261 | 290 / 346 | 5.9K |
| MathLMArena | 1269 | 269 / 339 | 4.8K |
| Creative writingLMArena | 1285 | 238 / 349 | 5K |
| Instruction followingLMArena | 1257 | 269 / 351 | 14.6K |
| Hard promptsLMArena | 1257 | 279 / 351 | 9.3K |
| Multi-turnLMArena | 1253 | 291 / 349 | 6.3K |
| Long queriesLMArena | 1284 | 263 / 330 | 5.5K |
| ExpertLMArena | 1233 | 271 / 305 | 2.1K |
| Legal and governmentIndustries | 1302 | 251 / 325 | 2.2K |
| Medicine and healthcareIndustries | 1290 | 252 / 325 | 1.7K |
| Business and financeIndustries | 1264 | 261 / 344 | 4.3K |
| ChineseLanguages | 1295 | 251 / 328 | 3K |
| SpanishLanguages | 1243 | 250 / 249 | 283 |
| GermanLanguages | 1262 | 221 / 261 | 739 |
| FrenchLanguages | 1258 | 245 / 252 | 295 |
| JapaneseLanguages | 1252 | 186 / 236 | 753 |
| VisionLMArena | 1141 | 123 / 146 | 7.2K |
LMArena, CC BY 4.0, as of Oct 22, 2026. Where a model is rated at several effort levels, its best is shown (Gemini 1.5 Flash (002), Gemini 1.5 Flash (001)).
Compare Gemini 1.5 Flash
Google DeepMind
Google’s AI lab, behind Gemini and the open Gemma family, with very long context and native multimodality. Founded 2010 (DeepMind), merged with Google Brain in 2023, based in London. deepmind.google
Questions
Who makes Gemini 1.5 Flash?
Gemini 1.5 Flash is made by Google DeepMind, founded 2010 (DeepMind), merged with Google Brain in 2023 and based in London.
How does Gemini 1.5 Flash rank?
#264 of 351 on LMArena’s text leaderboard, rated 1287 (95% interval 1282–1291) from 34,902 votes, as of Oct 22, 2026.
Is Gemini 1.5 Flash open source?
No. Gemini 1.5 Flash is proprietary and served through its provider’s API.