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  5. Gemini 2.5 Flash Preview 05-20vsGLM 5
Updated Feb 2026

Gemini 2.5 Flash Preview 05-20vsGLM 5

Gemini 2.5 Flash Preview 05-20 is cheaper than GLM 5 at $0.15/M vs $0.8/M input tokens.

Gemini 2.5 Flash Preview 05-20 and GLM 5 compared across 11 shared prompts
SpecGemini 2.5 Flash Preview 05-20GLM 5
Input price$0.15/M tokens$0.8/M tokens
Output price$0.6/M tokens$2.56/M tokens
Context window1.0M tokens203K tokens
Weights—Open
Free API (OpenRouter)NoNo
ReleasedMay 2025Feb 2026
Our Verdict
GLM 5
GLM 5
Gemini 2.5 Flash Preview 05-20
Gemini 2.5 Flash Preview 05-20Runner-up

Not enough votes to call it. On the specs, GLM 5 has the edge: bigger model tier, newer.

Gemini 2.5 Flash Preview 05-20 costs 4.3x less per token.

Too close to call

Reviewing agent-written code?See a Brief PR report

API pricing

Cost per 1M tokens

Gemini 2.5 Flash Preview 05-20
Input
$0.15
5.3× cheaper
Output
$0.60
4.3× cheaper
GLM 5
Input
$0.80
Output
$2.56

Gemini 2.5 Flash Preview 05-20 is cheaper on both: 5.3× input, 4.3× output.

Where to run it

8 hosts, cheapest first

Gemini 2.5 Flash Preview 05-20

No hosts listed on OpenRouter.

GLM 58 hosts
HostInOutContextUptime
GGMI Cloudfp8$0.60 in·$1.92 out·203k·97.3% upSStreamLakefp8$0.60 in·$1.92 out·198k·99.7% upBaidu Qianfanfp8$0.70 in·$2.24 out·203k·99.8% upSSiliconFlowfp8$0.95 in·$2.55 out·205k·99.6% upAmazon Bedrock$1.00 in·$3.20 out·203k·97.5% upNNovitafp8$1.00 in·$3.20 out·203k·100% up
2 more hostsFewer hosts
VVenicefp8$1.00 in·$3.20 out·198k·98.5% upZ.aifp8$1.00 in·$3.20 out·203k·100% up

Per million tokens. Prices and uptime via OpenRouter, checked 23 Sep 2026.

Writing DNA

Style Comparison

Similarity
37%

GLM 5 uses 59.7x more headings

Gemini 2.5 Flash Preview 05-20
GLM 5
69%Vocabulary54%
10wSentence Length17w
0.26Hedging0.37
1.1Bold6.3
5.5Lists4.7
0.00Emoji0.00
0.00Headings0.60
0.00Transitions0.18
Based on 2 + 22 text responses
Research

What we learned reading every model

FAQ

Common questions

Gemini 2.5 Flash Preview 05-20 is developed by Google AI while GLM 5 is developed by Zhipu AI. Gemini 2.5 Flash Preview 05-20 has a 1.0M token context window vs GLM 5's 203K. You can compare their actual outputs across 11 challenges on Rival to see how they differ in practice.

It depends on your use case. Gemini 2.5 Flash Preview 05-20 and GLM 5 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 11 challenges so you can judge which fits your needs best.

Gemini 2.5 Flash Preview 05-20 costs $0.15/M input tokens and GLM 5 costs $0.8/M input tokens. Gemini 2.5 Flash Preview 05-20 is $0.65/M cheaper per input. Check their side-by-side outputs on Rival to see if the price difference is justified by quality.

This page shows a side-by-side comparison of Gemini 2.5 Flash Preview 05-20 and GLM 5 across shared challenges. You can vote on which model produced the better output in a blind duel. Browsing and voting are free. No account is needed to look; signing in only saves your votes and likes.

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Model pages

Gemini 2.5 Flash Preview 05-20 logo
Gemini 2.5 Flash Preview 05-2011 outputs, specs and price
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GLM 553 outputs, specs and price
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