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Google Gemini 1.5 Flash Retired

  • Google
  • Released May 23, 2024
  • Weights not known
  • 1.05M context

Google Gemini 1.5 Flash was last priced at $0.075 per million input tokens and $0.30 per million output tokens, as of October 21, 2026. None of the 6 coding benchmarks behind the index has measured it, so it has no coding index, but 52 benchmarks outside the index have a result below.

Gemini 1.5 Flash is retired, so it sits outside the current price order and the rankings.

  • Coding index Not benchmarked No benchmark coverage
  • Cost per solved task Not computable No published attempt cost
  • Output, per million tokens $0.30 Not in the price order OpenRouter list price
  • Input, per million tokens $0.075 OpenRouter list price
  • Context window 1.05M Tokens per request

No longer sold through the API. Retired on September 29, 2025; last list price shown.

About and specs

OpenRouter publishes no description for this model.

API model id google/gemini-flash-1.5
  • Tool callingNot listed
  • Structured outputsNot listed
  • JSON modeNot listed
  • Reasoning modeNot listed
  • Web searchNot listed
Takes in
Not listed
Gives back
Not listed
Context window
1.05M tokens
Max output
Not published
Knowledge cutoff
Not published
Cached input $/Mtok
No cache price listed
Cache write $/Mtok
No cache write price listed
Reasoning $/Mtok
Not priced apart
Web search, per request
No search price listed
Tokenizer
Not named
Requests moderated
Not stated
Withdrawn on
No date announced
Parameters
Not published
Downloads, all time
No public weights
Training compute
No estimate published
Output speed
Not measured
Time to first token
Not measured
Speed on OpenRouter
Not measured
First token on OpenRouter
Not measured

Benchmarks: 52 of 195 measured

The tick on a coding bar is the median of every model measured on it. Outside coding, the place is this model's rank on that board. A board that never ran the model says so.

Coding index

Not benchmarked
  • Terminal-Bench 4 (Vals AI) Not measured
  • Vibe Code Bench (Vals AI) Not measured
  • LiveBench coding Not measured
  • SWE-bench Verified (Vals AI) Not measured
  • FrontierCode Not measured
  • LMArena WebDev Elo, scaled from 1200 to 1900 Not measured

No coding benchmark has measured this model, so there is no index. We do not estimate one from its price, its maker or its siblings. How it is weighted

Other public boards

All rankings

Coding4 of 33 boards

Not measured on Aider polyglot, SWE-bench Verified, SWE-bench Lite, SWE-bench (full test set), SWE-bench Multimodal, SWE-bench Multilingual, AA Coding Index, Code migration (Vals AI), ProgramBench (Vals AI), IOI (Vals AI), Terminal-Bench 2.1 (Vals AI), SWE-bench Multimodal (Vals AI), Vibe Code Bench 1-100 (Vals AI), SkillsBench (Vals AI), CyberBench (Vals AI), LiveCodeBench (Artificial Analysis run), SciCode, Terminal-Bench Hard (Artificial Analysis run), Terminal-Bench, DeepSWE, FrontierSWE, GSO-Bench, MirrorCode, Cybench, ALE-Bench, LMArena WebDev: React, LMArena WebDev: HTML, LMArena WebDev: from an image, SciCode

Intelligence0 of 2 boards

Not measured on AA Intelligence Index, Epoch Capabilities Index

Agentic work1 of 41 boards

Not measured on AA Agentic Index, Design Arena: agents building web apps, Design Arena: agents building full-stack apps, Design Arena: agents building mobile apps, Design Arena: agents building Android apps, Design Arena: agents building Godot games, Design Arena: agents building games, Design Arena: HTML slides, Design Arena: PowerPoint slides, Design Arena: spreadsheets, LiveBench research, LiveBench browser, LiveBench long agentic, SREBench (Vals AI), Finance Agent (Vals AI), Tax Agent Bench (Vals AI), Legal Research Bench (Vals AI), Harvey's Legal Agent Benchmark (Vals AI), Excel Modeling Benchmark (Vals AI), BioMysteryBench (Vals AI), Terminal-Bench-Science (Vals AI), Vals Science Index, Time Horizon Index (Vals AI), CUA-bench (Vals AI), Robo-bench (Vals AI), τ²-Bench Telecom, APEX-Agents, METR time horizons, Remote Labor Index, GDPval, OSWorld 2.0, DeepResearch Bench, PostTrainBench, TheAgentCompany, OSWorld, SpireClimb, Vending-Bench 2, LMArena Search, Berkeley Function Calling Leaderboard (BFCL), BrowseComp-Plus

Reasoning6 of 22 boards

Not measured on LiveBench reasoning, MysteryMechanism (Vals AI), GPQA Diamond (Artificial Analysis run), Humanity's Last Exam (Artificial Analysis run), ARC-AGI, ARC-AGI-2, Humanity's Last Exam, SimpleBench, Chess puzzles, Mystery game puzzles, EBR-bench, VPCT, BIG-Bench Hard, LMArena Vision: diagrams, LMArena Vision: homework, Kagi LLM Benchmark

Math8 of 13 boards

2 more math boards

Not measured on AA Math Index, AIME 2025 (Artificial Analysis run), FrontierMath, tiers 1 to 3, FrontierMath, tier 4, ProofBench

Knowledge11 of 18 boards

5 more knowledge boards

Not measured on CaseLaw (Vals AI), MedQA (Vals AI), MedCode (Vals AI), MMLU Pro (Artificial Analysis run), SimpleQA Verified, AI2 Reasoning Challenge, FACTS Benchmark Suite

Web design0 of 9 boards

Not measured on Design Arena: websites, Design Arena: UI components, Design Arena: game dev, Design Arena: data viz, Design Arena: 3D, Design Arena: all code categories, Design Arena: SVG, Design Arena: ASCII art, LiveBench design

General22 of 46 boards

16 more general boards

Not measured on Vals Index, LiveBench data analysis, Public Benefits Bench (Vals AI), SAGE (Vals AI), MedScribe (Vals AI), Vals Multimodal Index, IFBench, Long context reasoning (AA-LCR), LMCA, Fiction.LiveBench, Creative writing (Lech Mazur), CL-bench, Surface Evolver Bench, Furniture assembly, ExploitBench, HellaSwag, WinoGrande, CL-bench Life, LMArena Vision: reading text, LMArena Vision: humor, LMArena Vision: captioning, LMArena Vision: recognizing things, LMArena Vision: creative writing, LMArena Document

Image generation0 of 5 boards

Not measured on Design Arena: images, Design Arena: graphic design, Design Arena: logos, LMArena Text to Image, LMArena Image Edit

Public boards shown as published (Vals AI, Artificial Analysis, Design Arena) and kept out of the coding index. Each links to its source on the benchmark page.

All 195 benchmarks as a table
Benchmark results for Google Gemini 1.5 Flash
BenchmarkResultIndex weight
Aider polyglotCoding Not measured Not in index
SWE-bench VerifiedCoding Not measured Not in index
SWE-bench LiteCoding Not measured Not in index
SWE-bench (full test set)Coding Not measured Not in index
SWE-bench MultimodalCoding Not measured Not in index
SWE-bench MultilingualCoding Not measured Not in index
LiveBench codingCoding Not measured 15%
LMArena WebDevCoding Not measured 10%
Vals IndexGeneral Not measured Not in index
GPQA DiamondReasoning 46.0% Not in index
AIMEMath 17.3% Not in index
MMLU ProKnowledge 65.6% Not in index
AA Intelligence IndexIntelligence Not measured Not in index
AA Coding IndexCoding Not measured Not in index
AA Agentic IndexAgentic work Not measured Not in index
Design Arena: websitesWeb design Not measured Not in index
Design Arena: UI componentsWeb design Not measured Not in index
Design Arena: game devWeb design Not measured Not in index
Design Arena: data vizWeb design Not measured Not in index
Design Arena: 3DWeb design Not measured Not in index
Design Arena: all code categoriesWeb design Not measured Not in index
Design Arena: SVGWeb design Not measured Not in index
Design Arena: ASCII artWeb design Not measured Not in index
Design Arena: agents building web appsAgentic work Not measured Not in index
Design Arena: agents building full-stack appsAgentic work Not measured Not in index
Design Arena: agents building mobile appsAgentic work Not measured Not in index
Design Arena: agents building Android appsAgentic work Not measured Not in index
Design Arena: agents building Godot gamesAgentic work Not measured Not in index
Design Arena: agents building gamesAgentic work Not measured Not in index
Design Arena: HTML slidesAgentic work Not measured Not in index
Design Arena: PowerPoint slidesAgentic work Not measured Not in index
Design Arena: spreadsheetsAgentic work Not measured Not in index
Design Arena: imagesImage generation Not measured Not in index
Design Arena: graphic designImage generation Not measured Not in index
Design Arena: logosImage generation Not measured Not in index
LiveBench reasoningReasoning Not measured Not in index
LiveBench data analysisGeneral Not measured Not in index
LiveBench researchAgentic work Not measured Not in index
LiveBench browserAgentic work Not measured Not in index
LiveBench long agenticAgentic work Not measured Not in index
LiveBench designWeb design Not measured Not in index
LiveCodeBench (Vals AI)Coding 36.9% Not in index
SWE-bench Verified (Vals AI)Coding Not measured 15%
Terminal-Bench 4 (Vals AI)Coding Not measured 25%
Vibe Code Bench (Vals AI)Coding Not measured 20%
Code migration (Vals AI)Coding Not measured Not in index
ProgramBench (Vals AI)Coding Not measured Not in index
SREBench (Vals AI)Agentic work Not measured Not in index
IOI (Vals AI)Coding Not measured Not in index
Terminal-Bench 2.1 (Vals AI)Coding Not measured Not in index
SWE-bench Multimodal (Vals AI)Coding Not measured Not in index
Vibe Code Bench 1-100 (Vals AI)Coding Not measured Not in index
SkillsBench (Vals AI)Coding Not measured Not in index
CyberBench (Vals AI)Coding Not measured Not in index
Finance Agent (Vals AI)Agentic work Not measured Not in index
Tax Agent Bench (Vals AI)Agentic work Not measured Not in index
Legal Research Bench (Vals AI)Agentic work Not measured Not in index
Harvey's Legal Agent Benchmark (Vals AI)Agentic work Not measured Not in index
Excel Modeling Benchmark (Vals AI)Agentic work Not measured Not in index
BioMysteryBench (Vals AI)Agentic work Not measured Not in index
Terminal-Bench-Science (Vals AI)Agentic work Not measured Not in index
Vals Science IndexAgentic work Not measured Not in index
Time Horizon Index (Vals AI)Agentic work Not measured Not in index
CUA-bench (Vals AI)Agentic work Not measured Not in index
Robo-bench (Vals AI)Agentic work Not measured Not in index
Public Benefits Bench (Vals AI)General Not measured Not in index
MysteryMechanism (Vals AI)Reasoning Not measured Not in index
MMMU Pro (Vals AI)Reasoning 57.2% Not in index
MATH 500 (Vals AI)Math 78.8% Not in index
MGSM (Vals AI)Math 86.6% Not in index
SAGE (Vals AI)General Not measured Not in index
LegalBench (Vals AI)Knowledge 63.2% Not in index
CaseLaw (Vals AI)Knowledge Not measured Not in index
CorpFin (Vals AI)Knowledge 38.2% Not in index
TaxEval (Vals AI)Knowledge 48.2% Not in index
MortgageTax (Vals AI)Knowledge 42.8% Not in index
MedQA (Vals AI)Knowledge Not measured Not in index
MedCode (Vals AI)Knowledge Not measured Not in index
MedScribe (Vals AI)General Not measured Not in index
Vals Multimodal IndexGeneral Not measured Not in index
AA Math IndexMath Not measured Not in index
GPQA Diamond (Artificial Analysis run)Reasoning Not measured Not in index
Humanity's Last Exam (Artificial Analysis run)Reasoning Not measured Not in index
MMLU Pro (Artificial Analysis run)Knowledge Not measured Not in index
LiveCodeBench (Artificial Analysis run)Coding Not measured Not in index
SciCodeCoding Not measured Not in index
Terminal-Bench Hard (Artificial Analysis run)Coding Not measured Not in index
IFBenchGeneral Not measured Not in index
Long context reasoning (AA-LCR)General Not measured Not in index
τ²-Bench TelecomAgentic work Not measured Not in index
AIME 2025 (Artificial Analysis run)Math Not measured Not in index
Terminal-BenchCoding Not measured Not in index
DeepSWECoding Not measured Not in index
FrontierCodeCoding Not measured 15%
FrontierSWECoding Not measured Not in index
GSO-BenchCoding Not measured Not in index
WeirdMLCoding 24.9% Not in index
MirrorCodeCoding Not measured Not in index
APEX-AgentsAgentic work Not measured Not in index
METR time horizonsAgentic work Not measured Not in index
Remote Labor IndexAgentic work Not measured Not in index
GDPvalAgentic work Not measured Not in index
OSWorld 2.0Agentic work Not measured Not in index
BALROGAgentic work 14.6% Not in index
DeepResearch BenchAgentic work Not measured Not in index
PostTrainBenchAgentic work Not measured Not in index
GPQA Diamond (Epoch AI run)Reasoning 47.3% Not in index
ARC-AGIReasoning Not measured Not in index
ARC-AGI-2Reasoning Not measured Not in index
Humanity's Last ExamReasoning Not measured Not in index
SimpleBenchReasoning Not measured Not in index
Chess puzzlesReasoning Not measured Not in index
Mystery game puzzlesReasoning Not measured Not in index
EBR-benchReasoning Not measured Not in index
OTIS Mock AIMEMath 16.3% Not in index
FrontierMath, tiers 1 to 3Math Not measured Not in index
FrontierMath, tier 4Math Not measured Not in index
ProofBenchMath Not measured Not in index
MATH level 5Math 61.9% Not in index
GSM8KMath 82.4% Not in index
SimpleQA VerifiedKnowledge Not measured Not in index
MMLUKnowledge 77.9% Not in index
GeoBenchKnowledge 76.0% Not in index
DTBenchGeneral 53.8% Not in index
LMCAGeneral Not measured Not in index
Fiction.LiveBenchGeneral Not measured Not in index
Creative writing (Lech Mazur)General Not measured Not in index
CL-benchGeneral Not measured Not in index
Surface Evolver BenchGeneral Not measured Not in index
Furniture assemblyGeneral Not measured Not in index
ExploitBenchGeneral Not measured Not in index
CybenchCoding Not measured Not in index
TheAgentCompanyAgentic work Not measured Not in index
OSWorldAgentic work Not measured Not in index
SpireClimbAgentic work Not measured Not in index
VPCTReasoning Not measured Not in index
BIG-Bench HardReasoning Not measured Not in index
AI2 Reasoning ChallengeKnowledge Not measured Not in index
HellaSwagGeneral Not measured Not in index
WinoGrandeGeneral Not measured Not in index
PIQAGeneral 87.5% Not in index
CL-bench LifeGeneral Not measured Not in index
ALE-BenchCoding Not measured Not in index
Vending-Bench 2Agentic work Not measured Not in index
Epoch Capabilities IndexIntelligence Not measured Not in index
LMArena TextGeneral 1287 Not in index
LMArena Text: codingCoding 1261 Not in index
LMArena Text: hard promptsReasoning 1257 Not in index
LMArena Text: mathMath 1269 Not in index
LMArena Text: instruction followingGeneral 1257 Not in index
LMArena Text: creative writingGeneral 1285 Not in index
LMArena VisionGeneral 1141 Not in index
LMArena Text: EnglishGeneral 1289 Not in index
LMArena Text: non-EnglishGeneral 1278 Not in index
LMArena Text: ChineseGeneral 1295 Not in index
LMArena Text: GermanGeneral 1262 Not in index
LMArena Text: JapaneseGeneral 1252 Not in index
LMArena Text: KoreanGeneral 1220 Not in index
LMArena Text: FrenchGeneral 1258 Not in index
LMArena Text: SpanishGeneral 1243 Not in index
LMArena Text: RussianGeneral 1287 Not in index
LMArena Text: PolishGeneral 1238 Not in index
LMArena Text: multi-turnGeneral 1253 Not in index
LMArena Text: longer queriesGeneral 1284 Not in index
LMArena Text: expertReasoning 1233 Not in index
LMArena Text: hard prompts in EnglishReasoning 1265 Not in index
LMArena Text: software and ITCoding 1278 Not in index
LMArena Text: mathematical workMath 1279 Not in index
LMArena Text: scienceKnowledge 1299 Not in index
LMArena Text: medicine and healthcareKnowledge 1290 Not in index
LMArena Text: legal and governmentKnowledge 1302 Not in index
LMArena Text: business and financeKnowledge 1265 Not in index
LMArena Text: writing and languageGeneral 1293 Not in index
LMArena Text: entertainment and mediaGeneral 1251 Not in index
LMArena WebDev: ReactCoding Not measured Not in index
LMArena WebDev: HTMLCoding Not measured Not in index
LMArena WebDev: from an imageCoding Not measured Not in index
LMArena Vision: EnglishGeneral 1157 Not in index
LMArena Vision: ChineseGeneral 1137 Not in index
LMArena Vision: reading textGeneral Not measured Not in index
LMArena Vision: diagramsReasoning Not measured Not in index
LMArena Vision: homeworkReasoning Not measured Not in index
LMArena Vision: humorGeneral Not measured Not in index
LMArena Vision: captioningGeneral Not measured Not in index
LMArena Vision: recognizing thingsGeneral Not measured Not in index
LMArena Vision: creative writingGeneral Not measured Not in index
LMArena SearchAgentic work Not measured Not in index
LMArena DocumentGeneral Not measured Not in index
LMArena Text to ImageImage generation Not measured Not in index
LMArena Image EditImage generation Not measured Not in index
Berkeley Function Calling Leaderboard (BFCL)Agentic work Not measured Not in index
Kagi LLM BenchmarkReasoning Not measured Not in index
BrowseComp-PlusAgentic work Not measured Not in index
SciCodeCoding Not measured Not in index
FACTS Benchmark SuiteKnowledge Not measured Not in index

What it costs

A list price says what a token costs. The cost per solved task says what a working answer costs, which is the number that decides.

Output price against the market

Gemini 1.5 Flash pricing
$0.05Dashed line: median $1.80, log scale$600.00
$0.30 per million output tokens is cheaper than 84% of the 344 paid models in the catalog.

Cost per solved task

How it is computed

Neither board that publishes what a SWE-bench Verified attempt costs, Vals AI and swebench.com, has run this model. We leave the number out rather than estimate it.

What the boards say about its runs

Beside a result, many boards publish what the run cost, how long it took, the tokens it spent or the votes behind a rating. Each figure as its board printed it, one board per row.

What each board publishes about the runs behind Google: Gemini 1.5 Flash's results
BoardResultWhat the run costAlso published
WeirdML 24.9% $0.0028 per run Median lines of code 70
GPQA Diamond 46.0% Not published Latency, as printed 3.4 s
AIME 17.3% Not published Latency, as printed 5.7 s
MMLU Pro 65.6% Not published Latency, as printed 1.7 s
LiveCodeBench (Vals AI) 36.9% Not published Latency, as printed 2.5 s
MMMU Pro (Vals AI) 57.2% Not published Latency, as printed 41 s
MATH 500 (Vals AI) 78.8% Not published Latency, as printed 2.6 s
MGSM (Vals AI) 86.6% Not published Latency, as printed 1.4 s
LegalBench (Vals AI) 63.2% Not published Latency, as printed 0.5 s
CorpFin (Vals AI) 38.2% Not published Latency, as printed 28 s
TaxEval (Vals AI) 48.2% Not published Latency, as printed 3.7 s
MortgageTax (Vals AI) 42.8% Not published Latency, as printed 2.1 s
31 more boards
What each board publishes about the runs behind Google: Gemini 1.5 Flash's results, continued
LMArena Text 1287 Elo Not published Votes 34,902 · Interval (±) ±4.2
LMArena Text: coding 1261 Elo Not published Votes 5,892 · Interval (±) ±8.0
LMArena Text: hard prompts 1257 Elo Not published Votes 9,262 · Interval (±) ±6.6
LMArena Text: math 1269 Elo Not published Votes 4,789 · Interval (±) ±8.6
LMArena Text: instruction following 1257 Elo Not published Votes 14,561 · Interval (±) ±5.9
LMArena Text: creative writing 1285 Elo Not published Votes 5,017 · Interval (±) ±8.9
LMArena Vision 1141 Elo Not published Votes 7,241 · Interval (±) ±9.9
LMArena Text: English 1289 Elo Not published Votes 18,364 · Interval (±) ±5.4
LMArena Text: non-English 1278 Elo Not published Votes 16,538 · Interval (±) ±5.6
LMArena Text: Chinese 1295 Elo Not published Votes 2,980 · Interval (±) ±11.4
LMArena Text: German 1262 Elo Not published Votes 739 · Interval (±) ±21.5
LMArena Text: Japanese 1252 Elo Not published Votes 753 · Interval (±) ±21.9
LMArena Text: Korean 1220 Elo Not published Votes 502 · Interval (±) ±28.5
LMArena Text: French 1258 Elo Not published Votes 295 · Interval (±) ±34.4
LMArena Text: Spanish 1243 Elo Not published Votes 283 · Interval (±) ±33.7
LMArena Text: Russian 1287 Elo Not published Votes 5,101 · Interval (±) ±8.8
LMArena Text: Polish 1238 Elo Not published Votes 117 · Interval (±) ±61.5
LMArena Text: multi-turn 1253 Elo Not published Votes 6,324 · Interval (±) ±8.3
LMArena Text: longer queries 1284 Elo Not published Votes 5,463 · Interval (±) ±8.4
LMArena Text: expert 1233 Elo Not published Votes 2,116 · Interval (±) ±13.1
LMArena Text: hard prompts in English 1265 Elo Not published Votes 5,484 · Interval (±) ±8.2
LMArena Text: software and IT 1278 Elo Not published Votes 9,225 · Interval (±) ±6.8
LMArena Text: mathematical work 1279 Elo Not published Votes 4,114 · Interval (±) ±9.3
LMArena Text: science 1299 Elo Not published Votes 6,083 · Interval (±) ±8.3
LMArena Text: medicine and healthcare 1290 Elo Not published Votes 1,696 · Interval (±) ±15.0
LMArena Text: legal and government 1302 Elo Not published Votes 2,160 · Interval (±) ±13.4
LMArena Text: business and finance 1265 Elo Not published Votes 4,259 · Interval (±) ±9.7
LMArena Text: writing and language 1293 Elo Not published Votes 9,441 · Interval (±) ±7.0
LMArena Text: entertainment and media 1251 Elo Not published Votes 5,693 · Interval (±) ±8.2
LMArena Vision: English 1157 Elo Not published Votes 3,888 · Interval (±) ±12.6
LMArena Vision: Chinese 1137 Elo Not published Votes 370 · Interval (±) ±44.3

No comparison page of its own yet: one needs a coding index on both sides, and Gemini 1.5 Flash has none. Compare Gemini 1.5 Flash with any model