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Gemini 2.5 Pro vs Gemini 2.5 Flash

Side-by-side pricing, capabilities, real-world cost across common scenarios, and our editorial pick.

添加模型最多可对比 4 个模型
全部价格按美元 / 百万 token 计

Gemini 2.5 Pro

Google · released 2025-09-01

Quality (AA Index)87
Input price$1.25
Output price$10.00
Context1M
Throughput140 tok/s
P50 latency0.8s
View full pricing
OVERALL WINNER

Gemini 2.5 Flash

Google · released 2025-09-01

Quality (AA Index)78
Input price$0.30
Output price$2.50
Context1M
Throughput320 tok/s
P50 latency0.3s
View full pricing
通过 OpenRouter 试用 Gemini 2.5 Pro通过 OpenRouter 试用 Gemini 2.5 Flash

链接通过我们的 OpenRouter 推荐链接在新标签页打开。 查看推广披露

规格对比

绿色列 = 该指标获胜方
MetricGemini 2.5 ProGemini 2.5 FlashVerdict
Input price
/百万 tokens
$1.25$0.30Gemini 2.5 Flash −76%
Output price
/百万 tokens
$10.00$2.50Gemini 2.5 Flash −75%
Context window
max input length
1M1MTied
AA Quality
AA Intelligence Index (0–100)
8778Gemini 2.5 Pro +9pt
Arena Elo
LMArena human-pref Elo (800–2000)
——Tied
Throughput
tokens per second
140320Gemini 2.5 Flash +129%
P50 latency
first token
0.8s0.3sGemini 2.5 Flash −63%
Vision
multimodal
Tied
Function calling
tool use
Tied
Reasoning mode
chain-of-thought
Tied

常见场景月度费用

默认用量假设
ScenarioGemini 2.5 ProGemini 2.5 Flash
customer support
1000K req · 600/180 tok
$2.5K$630
chat with docs
300K req · 4000/300 tok
$2.4K$585
code generation
500K req · 2000/500 tok
$3.8K$925
voice assistant
600K req · 800/200 tok
$1.8K$444
Our pick

For most workloads, choose Gemini 2.5 Flash.

  • 76% cheaper input price, which compounds at scale
  • 129% faster throughput — matters for streaming UX and voice agents

The price-performance benchmark for vision tasks. Strong multimodal, weak on deep reasoning. Pair as a fast first hop ahead of a smarter fallback.

Choose Gemini 2.5 Pro instead if: Largest context window in the top tier (1M tokens). Tradeoff: pricier than DeepSeek and slower TTFT than GPT-5 — pick when whole-codebase or whole-PDF tasks matter.

阅读完整深度分析

为何选择？通过智能路由同时使用两者

第二阶段 · 带故障转移链的网关

Set Gemini 2.5 Flash as primary, Gemini 2.5 Pro as fallback. One key, one bill, automatic failover when Gemini 2.5 Flash errors.

第二阶段预览 · 网关尚未上线该接口目前不存在。网关计划在第二阶段上线——下面只是规划中的接口形态预览，不是可用的 API。上线时会通过 newsletter 通知订阅者。
查看计划中的 API 调用形态
$ curl https://api.aipricly.com/v1/chat/completions \
  -H "Authorization: Bearer $AIPC_KEY" \
  -d '{
    "routing": {
      "primary": "google/gemini-2-5-flash",
      "fallback": ["google/gemini-2-5-pro"]
    },
    "messages": [{"role": "user", "content": "..."}]
  }'

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