Claude Fable 5$22.000/MClaude Opus 4.8$11.000/MClaude Opus 4.7$11.000/MClaude Opus 4.6$11.000/MClaude Opus 4.5$33.000/MClaude Sonnet 3.7$6.600/MClaude Opus 3$33.000/MClaude 2.1$12.800/MClaude 2$12.800/MGPT-5.5$12.500/MGPT-5.2$5.425/MGPT-5.2-Codex$5.425/MGPT-5$3.875/MGPT-4.5$97.500/MGPT-4 Turbo Preview$16.000/MGPT-4$39.000/MGPT-4-32k$78.000/Mo3$19.000/Mo3-mini$2.090/Mo4-mini$2.090/Mo1$28.500/Mo1-mini$5.700/Mo1-preview$28.500/MGemini 3.5 Pro$5.000/MGemini 3.1 Pro$5.000/MGemini 3 Pro$5.000/MGemini 2.5 Pro$3.875/MGemini 1.5 Pro$2.375/MGemini 1.0 Ultra$12.000/MGemini 1.0 Pro$0.800/MClaude Fable 5$22.000/MClaude Opus 4.8$11.000/MClaude Opus 4.7$11.000/MClaude Opus 4.6$11.000/MClaude Opus 4.5$33.000/MClaude Sonnet 3.7$6.600/MClaude Opus 3$33.000/MClaude 2.1$12.800/MClaude 2$12.800/MGPT-5.5$12.500/MGPT-5.2$5.425/MGPT-5.2-Codex$5.425/MGPT-5$3.875/MGPT-4.5$97.500/MGPT-4 Turbo Preview$16.000/MGPT-4$39.000/MGPT-4-32k$78.000/Mo3$19.000/Mo3-mini$2.090/Mo4-mini$2.090/Mo1$28.500/Mo1-mini$5.700/Mo1-preview$28.500/MGemini 3.5 Pro$5.000/MGemini 3.1 Pro$5.000/MGemini 3 Pro$5.000/MGemini 2.5 Pro$3.875/MGemini 1.5 Pro$2.375/MGemini 1.0 Ultra$12.000/MGemini 1.0 Pro$0.800/M
BETA
Subscribe
← Back to Index·All Google models
Google
GoogleEfficient

Gemini 1.5 Flash

Previous Gen

Cheap Gemini 1.5 sibling. The default before 2.0 Flash arrived; still common in legacy Vertex deployments.

Gemini 1.5 Flash is a efficient AI model from Google. It costs $0.075 per million input tokens and $0.300 per million output tokens (blended $0.142/M), with a 1M-token context window.

Released May 2024Modalities text, vision, audioOfficial model page ↗Provider pricing ↗API docs ↗Compare with another model →Estimate monthly cost →
INPUT
$0.075/M
per million input tokens
OUTPUT
$0.300/M
per million output tokens
BLENDED 70/30
$0.142/M
default reference rate · how it's calculated →
CONTEXT
1M
1,000,000 tokens
What it's good at
  • Cheap multimodal
  • 1M context
  • Wide Vertex availability
Typical use cases
  • Legacy Flash 1.5 pipelines
  • Migration candidates
Benchmarks
vs. best public score
MMLU79%
Multitask academic knowledge across 57 subjects.
GPQA Diamond51%
Graduate-level science questions, "Google-proof".
MATH78%
High-school competition math problems.
HumanEval75%
Python function synthesis from docstrings.
LMArena Elo1230 Elo
Crowd-sourced head-to-head preference Elo rating.
Hand-curated from each provider's published reports and public leaderboards. Methodology varies across sources — treat as directional rather than authoritative.
More from Google
See all 23 →
Gemini 3.5 Pro
Frontier · 1M ctx
in $2.000/Mout $12.000/M
Gemini 3.5 Flash
Balanced · 1M ctx
in $1.500/Mout $9.000/M
Gemini 3.1 Pro
Frontier · 1M ctx
in $2.000/Mout $12.000/M
Gemini 3 Pro
Frontier · 1M ctx
in $2.000/Mout $12.000/M
Gemini 3 Flash
Efficient · 1M ctx
in $0.500/Mout $3.000/M
Gemini 2.5 Pro
Frontier · 1M ctx
in $1.250/Mout $10.000/M
Frequently asked questions

How much does Gemini 1.5 Flash cost?

Gemini 1.5 Flash costs $0.075 per million input tokens and $0.300 per million output tokens, for a blended reference rate of $0.142 per million tokens.

What is Gemini 1.5 Flash's context window?

Gemini 1.5 Flash supports up to 1M tokens of context (1,000,000 tokens).

What is Gemini 1.5 Flash best for?

Gemini 1.5 Flash is well suited to Cheap multimodal, 1M context and Wide Vertex availability.

Who makes Gemini 1.5 Flash?

Gemini 1.5 Flash is developed and served by Google. It was released in May 2024.