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Google: Gemini 2.5 Flash

🇺🇸 Google · Gemini 2.5

Input Price $0.300 per million tokens NT$9.6
Output Price $2.50 per million tokens NT$80.0
Context Window 1.05M tokens Output limit: 66K
OpenRouter Route Price Please verify with official pricing pages
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Overview

Google: Gemini 2.5 Flash is a large language model API from Google, part of its Gemini 2.5 model family. Priced at $0.300 per million input tokens and $2.50 per million output tokens, it occupies the mid-range, balancing capability against running cost. Output tokens cost about 8× as much as input, so prompt-heavy workloads run noticeably cheaper than generation-heavy ones. An exceptionally large 1.05M-token context window (≈1,573 pages of text) means entire repositories or document collections can be processed without chunking. Beyond plain text it also accepts File, Image, Audio, Video input, so it can be applied to multimodal tasks rather than text alone. On Artificial Analysis's Intelligence Index it scores 14 (F grade), a useful proxy for its general reasoning strength relative to the other models tracked here. All prices on this page reflect OpenRouter's routed rates and are re-synced automatically every day; confirm against the provider's official pricing before committing to production.

Dimension Unit Price (USD) Price (TWD) Effective From
Input per 1M tokens $0.300 NT$9.6
Output per 1M tokens $2.50 NT$80.0
Cached Input per 1M tokens $0.030 NT$0.96
Cache Write per 1M tokens $0.083 NT$2.7
Reasoning per 1M tokens $2.50 NT$80.0
Image Input per image $0.0000 NT$0.00
Audio Input per minute $0.0000 NT$0.00
Web Search per search $0.014 NT$0.45

Provider
Google
Model Family
Gemini 2.5
Version String
google/gemini-2.5-flash
Status
Active
Modality
File, Image, Text, Audio, Video
Context Window
1,048,576 tokens
Output Limit
65,535 tokens

Index Metrics

Cross-domain capability indexes evaluated by Artificial Analysis — Artificial Analysis

Intelligence Index 14 F Measured: 2026-07-01

Benchmark Scores

Data source: Artificial Analysis

AA-LCR 45.9% C Measured: 2026-07-01
GPQA Diamond 68.3% B Measured: 2026-07-01
HLE 5.1% D Measured: 2026-07-01
MMMU Pro 65.5% B Measured: 2026-07-01
Non-Hallucination 6.7% Measured: 2026-07-01
Omniscience Accuracy 26.5% Measured: 2026-07-01
SciCode 29.0% C Measured: 2026-07-01
Tau2 14.9% Measured: 2026-07-01
TerminalBench 12.1% Measured: 2026-07-01

Performance Metrics

Real-world benchmarks, updated every 72 hours by Artificial Analysis — Artificial Analysis

First Token Latency 0.5s Measured: 2026-07-01
Output Speed 205 t/s Measured: 2026-07-01
Response Time 3.0s Measured: 2026-07-01

Use Case Analysis

Model strengths, weaknesses, and ideal use cases based on benchmarks and official documentation

Strength

  • Reasoning at Flash Cost Flash with 4096-8192 thinking tokens often matches Pro quality at <1/10 the cost. Official
  • Cost Efficiency 33x cheaper than Pro. Input $0.075/1M, Output $0.30/1M. Official
  • Ultra-long Context 1M context window, same as Pro. Official

Best For

  • Default Production Model Recommended as the default for most production use cases. Upgrade to Pro only when specific quality gaps are identified. Official
  • High-Volume Applications Chatbots, customer support, content generation, and classification at scale. Official

Not Recommended

  • Frontier Research Cutting-edge AI research or problems at the frontier of AI capability. Use Pro instead. Official

90-Day Price Trend

Input / Output price (USD per 1M tokens)

Past 90 days of records; every price change is shown here

Date Dimension Price (USD) Source
Web Search $0.014 OpenRouter
Audio Input $0.0000 OpenRouter
Image Input $0.0000 OpenRouter
Reasoning $2.50 OpenRouter
Cache Write $0.083 OpenRouter
Cached Input $0.030 OpenRouter
Output $2.50 OpenRouter
Input $0.300 OpenRouter
Web Search $0.014 OpenRouter
Audio Input $0.0000 OpenRouter
Image Input $0.0000 OpenRouter
Reasoning $2.50 OpenRouter
Cache Write $0.083 OpenRouter
Cached Input $0.030 OpenRouter
Output $2.50 OpenRouter
Input $0.300 OpenRouter
Web Search $0.014 OpenRouter
Audio Input $0.0000 OpenRouter
Image Input $0.0000 OpenRouter
Reasoning $2.50 OpenRouter
Cache Write $0.083 OpenRouter
Cached Input $0.030 OpenRouter
Output $2.50 OpenRouter
Input $0.300 OpenRouter
Web Search $0.014 OpenRouter
Audio Input $0.0000 OpenRouter
Image Input $0.0000 OpenRouter
Reasoning $2.50 OpenRouter
Cache Write $0.083 OpenRouter
Cached Input $0.030 OpenRouter
Output $2.50 OpenRouter
Input $0.300 OpenRouter
Web Search $0.014 OpenRouter
Audio Input $0.0000 OpenRouter
Image Input $0.0000 OpenRouter
Reasoning $2.50 OpenRouter
Cache Write $0.083 OpenRouter
Cached Input $0.030 OpenRouter
Output $2.50 OpenRouter
Input $0.300 OpenRouter
Web Search $0.014 OpenRouter
Audio Input $0.0000 OpenRouter
Image Input $0.0000 OpenRouter
Reasoning $2.50 OpenRouter
Cache Write $0.083 OpenRouter
Cached Input $0.030 OpenRouter
Output $2.50 OpenRouter
Input $0.300 OpenRouter
Web Search $0.014 OpenRouter
Audio Input $0.0000 OpenRouter

Key Insights

Key data points from this page for quick reference and citation.

  • Google: Gemini 2.5 Flash Input price: $0.3/M tokens
  • Google: Gemini 2.5 Flash Output price: $2.5/M tokens
  • Context window: 1,048,576 tokens
  • Provider: Google
  • Model family: Gemini 2.5
  • Modalities: File, Image, Text, Audio, Video
  • Data source: OpenRouter, updated daily