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DeepSeek R2 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

DeepSeek R2

DeepSeek · released 2026-02-15

Quality (AA Index)86
Input price$0.55
Output price$2.20
Context128K
Throughput110 tok/s
P50 latency1.2s
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 DeepSeek R2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
MetricDeepSeek R2Gemini 2.5 FlashVerdict
Input price
/百万 tokens
$0.55$0.30Gemini 2.5 Flash −45%
Output price
/百万 tokens
$2.20$2.50DeepSeek R2 −12%
Context window
max input length
128K1MGemini 2.5 Flash +7.8×
AA Quality
AA Intelligence Index (0–100)
8678DeepSeek R2 +8pt
Arena Elo
LMArena human-pref Elo (800–2000)
——Tied
Throughput
tokens per second
110320Gemini 2.5 Flash +191%
P50 latency
first token
1.2s0.3sGemini 2.5 Flash −75%
Vision
multimodal
—
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
ScenarioDeepSeek R2Gemini 2.5 Flash
customer support
1000K req · 600/180 tok
$726$630
chat with docs
300K req · 4000/300 tok
$858$585
code generation
500K req · 2000/500 tok
$1.1K$925
voice assistant
600K req · 800/200 tok
$528$444
Our pick

For most workloads, choose Gemini 2.5 Flash.

  • 45% cheaper input price, which compounds at scale
  • 7.8× the context window — better for long documents and agents
  • 191% 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 DeepSeek R2 instead if: 尚未记录这对模型的具体取舍。两者质量差距可能很小，最终决定因素更多是工作负载契合度、集成成本与团队熟悉度。

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, DeepSeek R2 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": ["deepseek/deepseek-r2"]
    },
    "messages": [{"role": "user", "content": "..."}]
  }'

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