LogoLMSpeed
  • Home
  • Free
  • Models
  • Providers
  • Docs
LogoLMSpeed
  1. Home
  2. Compare
  3. Models
  4. Deepseek Chat V3.1 vs Gemini 2.5 Pro
LogoLMSpeed

The best API speed test tool

GitHubGitHubTwitterX (Twitter)Email
Product
  • Features
  • Pricing
  • FAQ
Leaderboard
  • Overview
  • Speed Ranking
  • Latency Ranking
  • Health Ranking
  • Model Pricing
  • Model Speed
  • Reasoning
  • Coding
Models
  • All Models
  • GPT
  • Claude
  • Gemini
  • DeepSeek
  • Llama
  • Qwen
Free Models
  • All Free Models
  • Free GPT
  • Free Claude
  • Free Gemini
  • Free DeepSeek
  • Free Llama
  • Free Qwen
Resources
  • Speed Test
  • Provider Directory
  • Documentation
Legal
  • Cookie Policy
  • Privacy Policy
  • Terms of Service
© 2026 LMSpeed All Rights Reserved.Made by Nexmoe with ❤️
Back to models

Data points: 51

On this page

Key TakeawaysComparison sheetBenchmark score comparisonAPI audit comparisonProvider examplesWhen to choose each modelFAQRelated compare reports

Key Takeaways

The readout for DeepSeek Chat V3.1 and Gemini 2.5 Pro, before the detailed comparison sheet.

Decision read

Gemini 2.5 Pro

Gemini 2.5 Pro currently has the stronger profile, with verified wins split 1 to 5.

Evidence depth

51 data points

Includes 0 benchmark rows, 0 audit samples, and 5 provider examples.

Selection signal

Start with Gemini 2.5 Pro

The charts below split 5 high-signal samples across speed, scores, and audit health.

Change comparison

Switch either side of this report to compare another model with the same LMSpeed data pipeline.

Select a different model to open a new comparison URL.

Model compare

DeepSeek Chat V3.1 vs Gemini 2.5 Pro

deepseek-chat-v3-1-vs-gemini-2-5-pro

Model A

DeepSeek

DeepSeek Chat V3.1

Model B

Gemini

Gemini 2.5 Pro

Overall leaderContenderLeading
Verified metric wins1 wins5 wins
Where it leadsFirst-token latency

Benchmark score comparison

Third-party benchmark profile synced into LMSpeed; only metrics available for both models are shown.

Category performance

Compare benchmark category scores on a 0-100 scale. Select a category to inspect the gap.

Model A coverage
0 / 8
Model B coverage
7 / 8
Shared
0 shared categories
DeepSeek Chat V3.1Gemini 2.5 Pro
Category performanceCompare benchmark category scores on a 0-100 scale. Select a category to inspect the gap.AgentsCodingReasoningKnowledgeMathMultilingualMultimodalInstruction following

Avg. score

DeepSeek Chat V3.1

-

Avg. score

Gemini 2.5 Pro

60.8

Selected category

Agents

Gemini 2.5 Pro

Professional benchmark details

Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.

No shared professional benchmark scores are available yet.

API audit comparison

Latest completed audits from shared providers, with four safety and integrity score groups plus report links.

Provider
DeepSeekDeepSeek Chat V3.1
GeminiGemini 2.5 Pro
No completed audits are available from shared providers yet.

Provider examples

Speed aggregates and input/output pricing share each provider row for real API selection and migration cost checks.

Provider
DeepSeekDeepSeek Chat V3.1
GeminiGemini 2.5 Pro
10 tests
DeepSeek

DeepSeek Chat V3.1

speed / latency

18 tok/s / 2318ms

input / output

No data

Gemini

When to choose each model

This report only uses LMSpeed data for DeepSeek Chat V3.1 and Gemini 2.5 Pro: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.

Guidance
DeepSeekDeepSeek Chat V3.1
GeminiGemini 2.5 Pro
When to choose each model

DeepSeek Chat V3.1

DeepSeek Chat V3.1 is stronger when you prioritize First-token latency.

Gemini 2.5 Pro

Gemini 2.5 Pro is stronger when you prioritize Cheapest input price, Average speed, Free providers, Provider coverage, Recent tests.

FAQ

TL;DR: Gemini 2.5 Pro leads across 51 verifiable data points, including pricing, speed, latency, benchmarks, and provider examples.

Why is this comparison indexable?
It has 6 verifiable comparison points, and both models have pricing or benchmark data.
Are missing metrics invented?
No. Metrics without LMSpeed data are omitted from this report.

Related compare reports

Continue from DeepSeek Chat V3.1 vs Gemini 2.5 Pro into nearby model comparisons with enough verified LMSpeed data.

Cheapest input price, Average speed, Free providers, Provider coverage, Recent tests
Model metadataDeepSeek Chat V3.1 exposes 163.8K tokens; notable signals: Text input, Text output, Tool calling, Structured outputs.Gemini 2.5 Pro exposes 1.0M tokens; notable signals: Text input, Image input, File input, Audio input.
DeveloperDeepSeekGoogle
Context window163.8K tokens1.0M tokens
Max output32.8K tokens65.5K tokens
ReleasedAug 2025Jun 2025
Modalities

Input

Text

Output

Text

Input

TextImageFileAudiovideo

Output

Text
Features
Text inputText outputTool callingStructured outputsJSON modeReasoning
Text inputImage inputFile inputAudio inputText outputTool callingStructured outputsJSON modeReasoning
ParametersNo dataNo data
TokenizerDeepSeekGemini
Knowledge cutoff2025-03-312025-01-31
OpenRouter IDdeepseek/deepseek-chat-v3.1google/gemini-2.5-pro
ReferencesNo dataNo data

Gemini 2.5 Pro

speed / latency

N/A / N/A

input / output

No data

AI Tools5 tests
DeepSeek

DeepSeek Chat V3.1

speed / latency

34 tok/s / 1439ms

input / output

No data

Gemini

Gemini 2.5 Pro

speed / latency

N/A / N/A

input / output

No data

91VIP0 tests
DeepSeek

DeepSeek Chat V3.1

speed / latency

N/A / N/A

input / output

No data

Gemini

Gemini 2.5 Pro

speed / latency

N/A / N/A

input / output

No data

AI API0 tests
DeepSeek

DeepSeek Chat V3.1

deepseek/deepseek-chat-v3.1

speed / latency

N/A / N/A

input / output

$0.300/M / $1.50/M

Gemini

Gemini 2.5 Pro

google/gemini-2.5-pro-preview-05-06

speed / latency

N/A / N/A

input / output

$2.50/M / $20.00/M

Futureppo0 tests
DeepSeek

DeepSeek Chat V3.1

speed / latency

N/A / N/A

input / output

No data

Gemini

Gemini 2.5 Pro

speed / latency

N/A / N/A

input / output

No data

OpenRouter
DeepSeekDeepSeek Chat V3.1 vs GPT-5.46 verified data points
ClaudeClaude Opus 4.6 vs DeepSeek Chat V3.16 verified data points
DeepSeekDeepSeek Chat V3.1 vs GPT-56 verified data points
DeepSeekDeepSeek Chat V3.1 vs GPT-5.26 verified data points

Data as of Jun 19, 2026, 08:01 AM·Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.