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Every score has a dated snapshot.

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  3. Google: Nano Banana (Gemini 2.5 Flash Image) vs GPT-4.5 Orion

Pairwise benchmark snapshot · Aug 17, 2026noindex (thin pair)

Google: Nano Banana (Gemini 2.5 Flash Image) vs GPT-4.5 Orion benchmark

In this head-to-head showdown, Google: Nano Banana (Gemini 2.5 Flash Image) is more budget-friendly at $2.5/1M per 1M output tokens. Review the complete breakdown below to determine which model best fits your performance and budget requirements.

Executive Comparison Verdict

Bottom Line: Both Google: Nano Banana (Gemini 2.5 Flash Image) and GPT-4.5 Orion present distinct architectural strengths. Compare the verified benchmark matrix below to choose the model tailored to your specific application requirements.
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Verified Head-to-Head Advantage Breakdown

3 direct benchmark disciplines evaluated across capability, speed, and cost

Google: Nano Banana (Gemini 2.5 Flash Image) (2)GPT-4.5 Orion (1)
Google: Nano Banana (Gemini 2.5 Flash Image)
2 of 3 Wins
✓Input price✓Output price
GPT-4.5 Orion
1 of 3 Wins
✓Context window
Google
Leads 2 of 3 metrics
Google: Nano Banana (Gemini 2.5 Flash Image)

Auto-discovered from OpenRouter (google/gemini-2.5-flash-image). Preview until a second source matches.

$2.5/1M out
OpenAI
Leads 1 of 3 metrics
GPT-4.5 Orion

OpenAI largest dense non-reasoning model with expansive world knowledge and reduced hallucinations.

Elo 1,540$150/1M out
Top Rival Showdowns for Google: Nano Banana (Gemini 2.5 Flash Image)
All Matchups
Compare vs:vs Claude Opus 4.5vs GPT-5vs Grok 4.6vs DeepSeek V4 Provs Qwen 3 Max
Preference Leader

No shared data

Single model data

Throughput Leader

No shared data

No latency data

Value per Dollar LeaderGoogle: Nano Banana (Gemini 2.5 Flash Image) Wins

Google: Nano Banana (Gemini 2.5 Flash Image)

$2.5 / 1M output

Capability Percentiles

Relative percentile scores computed across all active models in the benchmark catalog.

Multi-Dimensional Capability Radar

Leaders Matchup Capability Radar

Comparing top Western standard models with China's leading frontier rival across 6 skill dimensions. Tap any spoke or dot to inspect.

Tap any node to inspect
0–100 %ile
Head-to-Head Comparison

Overall Matchup Breakdown

Category wins across reasoning intelligence, generation speed, and token cost.

Google: Nano Banana (Gemini 2.5 Flash Image) (2)vsGPT-4.5 Orion (8)
Google: Nano Banana (Gemini 2.5 Flash Image): 2W (20%)Overall: GPT-4.5 OrionGPT-4.5 Orion: 8W (80%)
← Google: Nano Banana (Gemini 2.5 Flash Image)GPT-4.5 Orion →
🏆GPT-4.5 Orion(5/5)

Intelligence & Reasoning

Preference Elo, Coding proficiency, SWE-bench & LiveBench accuracy

Benchmark
Google: Nano Banana (Gemini 2.5 Flash Image)vsGPT-4.5 Orion
Preference Elo
—vs1,540
Coding Elo
—vs1,520
SWE-bench
—vs71%
LiveBench
—vs68.5%
GPQA Diamond
—vs84%
Google: Nano Banana (Gemini 2.5 Flash Image): 0WGPT-4.5 Orion: 5W
🏆GPT-4.5 Orion(2/2)

Speed & Latency

Generation throughput and time to first token responsiveness

Benchmark
Google: Nano Banana (Gemini 2.5 Flash Image)vsGPT-4.5 Orion
Output speed
—vs60 tok/s
Time to first token
—vs350 ms
Google: Nano Banana (Gemini 2.5 Flash Image): 0WGPT-4.5 Orion: 2W
🏆Google: Nano Banana (Gemini 2.5 Flash Image)(2/3)

Pricing & Capacity

Cost per million tokens and max context window length

Benchmark
Google: Nano Banana (Gemini 2.5 Flash Image)vsGPT-4.5 Orion
Output price
$2.5/1Mvs$150/1M+$147.5/1M
Input price
$0.3/1Mvs$75/1M+$74.7/1M
Context window
33kvs128k+95k
Google: Nano Banana (Gemini 2.5 Flash Image): 2WGPT-4.5 Orion: 1W

Side-by-Side Benchmark Matrix

Preference Elo
Google: Nano Banana (Gemini 2.5 Flash Image)—
GPT-4.5 Orion1,540
lmarena · Aug 17, 2026
Coding Elo
Google: Nano Banana (Gemini 2.5 Flash Image)—
GPT-4.5 Orion1,520
lmarena · Aug 17, 2026
LiveBench
Google: Nano Banana (Gemini 2.5 Flash Image)—
GPT-4.5 Orion68.5%
livebench · Aug 17, 2026
SWE-bench
Google: Nano Banana (Gemini 2.5 Flash Image)—
GPT-4.5 Orion71%
swebench · Aug 17, 2026
GPQA Diamond
Google: Nano Banana (Gemini 2.5 Flash Image)—
GPT-4.5 Orion84%
seed-bootstrap · Aug 1, 2026
Time to first token
Google: Nano Banana (Gemini 2.5 Flash Image)—
GPT-4.5 Orion350 ms
seed-bootstrap · Aug 1, 2026
Output speed
Google: Nano Banana (Gemini 2.5 Flash Image)—
GPT-4.5 Orion60 tok/s
seed-bootstrap · Aug 1, 2026
Input price+$74.7/1M
Google: Nano Banana (Gemini 2.5 Flash Image)$0.3/1M
openrouter · Aug 17, 2026
GPT-4.5 Orion$75/1M
seed-bootstrap · Aug 1, 2026
Output price+$147.5/1M
Google: Nano Banana (Gemini 2.5 Flash Image)$2.5/1M
openrouter · Aug 17, 2026
GPT-4.5 Orion$150/1M
seed-bootstrap · Aug 1, 2026
Context window+95k
Google: Nano Banana (Gemini 2.5 Flash Image)33k
openrouter · Aug 17, 2026
GPT-4.5 Orion128k
seed-bootstrap · Aug 1, 2026
BenchmarkGoogle: Nano Banana (Gemini 2.5 Flash Image)GPT-4.5 OrionAdvantage Delta
Preference Elo—
1,540
lmarena · Aug 17, 2026
—
Coding Elo—
1,520
lmarena · Aug 17, 2026
—
LiveBench—
68.5%
livebench · Aug 17, 2026
—
SWE-bench—
71%
swebench · Aug 17, 2026
—
GPQA Diamond—
84%
seed-bootstrap · Aug 1, 2026
—
Time to first token—
350 ms
seed-bootstrap · Aug 1, 2026
—
Output speed—
60 tok/s
seed-bootstrap · Aug 1, 2026
—
Input price
$0.3/1M
openrouter · Aug 17, 2026
$75/1M
seed-bootstrap · Aug 1, 2026
+$74.7/1M
Output price
$2.5/1M
openrouter · Aug 17, 2026
$150/1M
seed-bootstrap · Aug 1, 2026
+$147.5/1M
Context window
33k
openrouter · Aug 17, 2026
128k
seed-bootstrap · Aug 1, 2026
+95k
Interactive Simulator (USD)

Workload Cost & Savings Calculator

Simulate monthly production API costs in USD (US Dollar).

Save up to 99% with Google: Nano Banana (Gemini 2.5 Flash Image)
Monthly Volume50M tokens/mo
Quick Presets:
Token Ratio (In vs Out)70% In / 30% Out
RAG / Search (10% out)Coding / Chat (50% out)
Google: Nano Banana (Gemini 2.5 Flash Image)$48.00 / mo
In: $10.5Out: $37.5
GPT-4.5 Orion$4,875.00 / mo
In: $2,625Out: $2,250
Estimated Cost Delta

Google: Nano Banana (Gemini 2.5 Flash Image) is estimated to save $4,827.00/month ($57,924/year).

Based on 50M tokens (30% gen)

Key Selection Recommendations

  • 1
    Google: Nano Banana (Gemini 2.5 Flash Image):Pick Google: Nano Banana (Gemini 2.5 Flash Image) when you are optimizing output cost.

Recommended Workload Routing

Repo / coding agentsinsufficient data

Need SWE-bench on both sides.

High-volume chatGoogle: Nano Banana (Gemini 2.5 Flash Image)

Lower output list price ($2.5/1M).

Voice / low-latency UIinsufficient data

Need TTFT on both sides.

Long-document RAGGPT-4.5 Orion

Larger window (128k).

Screenshots / visionGPT-4.5 Orion

GPT-4.5 Orion is the side marked multimodal in the catalog.

Target WorkloadRecommended PickEvaluation Rationale
Repo / coding agentsinsufficient dataNeed SWE-bench on both sides.
High-volume chatGoogle: Nano Banana (Gemini 2.5 Flash Image)Lower output list price ($2.5/1M).
Voice / low-latency UIinsufficient dataNeed TTFT on both sides.
Long-document RAGGPT-4.5 OrionLarger window (128k).
Screenshots / visionGPT-4.5 OrionGPT-4.5 Orion is the side marked multimodal in the catalog.
Community Sentiment

Cast Your Matchup Vote

0 total votes

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CompareLLM AI Matrix

Verified Head-to-Head Telemetry

LIVE BENCHMARK
VS
Google

Google: Nano Banana (Gemini 2.5 Flash Image)

Elo n/a
SWE-bench—
Speed (tok/s)33k
Input / 1M Tokens$0.3/1M
Output / 1M Tokens$2.5/1M
OpenAI

GPT-4.5 Orion

Elo 1,540
SWE-bench71%
Speed (tok/s)60 tok/s
Input / 1M Tokens$75/1M
Output / 1M Tokens$150/1M

Frequently Asked Questions

Which is better overall, Google: Nano Banana (Gemini 2.5 Flash Image) or GPT-4.5 Orion?
We do not have preference Elo for both models, so we do not declare an overall winner. Compare the metrics that exist.
Which is better at coding, Google: Nano Banana (Gemini 2.5 Flash Image) or GPT-4.5 Orion?
SWE-bench is missing for at least one model, so we do not rank coding from a single number.
Which is cheaper to run in production?
Google: Nano Banana (Gemini 2.5 Flash Image) output tokens are $2.5/1M versus $150/1M. Input prices and retry rates still move the real bill.
Which is faster, Google: Nano Banana (Gemini 2.5 Flash Image) or GPT-4.5 Orion?
We do not have TTFT for both models.
Which has the larger context window?
GPT-4.5 Orion accepts 128k tokens versus 33k.
Can I self-host either model?
Neither model is marked open-weights here. You are comparing hosted APIs.
Are these scores from CompareLLM’s own evals?
No. V1 aggregates public leaderboards (and optional first-party latency pings). Each cell names its source and date. Read /methodology.
What does preference Elo mean on this page?
Preference Elo is a crowd vote from LMArena / Arena. People see two hidden answers and pick the one they like more. The model that wins more often gets a higher Elo. That means people preferred it — not that it passed a school test. It is not SWE-bench, not accuracy, and not a number we invent. Google: Nano Banana (Gemini 2.5 Flash Image) and GPT-4.5 Orion Elo cells are dated snapshots from the named source — we do not compute Arena ourselves.

Similar Head-to-Head Comparisons

All Google: Nano Banana (Gemini 2.5 Flash Image) matchups →|All GPT-4.5 Orion matchups →
GPT-4.5 Orion vs OpenAI: o1 (previous gpt-flagship)GPT-4.5 Orion vs GPT-5 (next gpt-flagship)Gemini 3 Pro vs GPT-4.5 OrionGemini 3 Flash vs GPT-4.5 OrionGemini 2.0 Flash Thinking vs GPT-4.5 OrionGPT-5.6 Sol vs GPT-4.5 Orion