Skip to main content
BenchLM
Data

Gemini 3 Flash vs GPT-5.4

Updated October 17, 2026. Rank says GPT-5.4 is ahead. Price, access, and your workload can each overturn that. Public scores include evidence status and uncertainty.

Share or export
Share on XLinkedInAPI/MCP

Decision reading

GPT-5.4 has the higher public score estimate, 66.7 versus 54.28, but the 90% score intervals overlap. Treat that as a lead, not a settled winner. 6 results are shared. Category rows resting on Estimated evidence or different benchmark sets are marked directional and do not name a winner.

Model A
Google logo

Google

54.28/100

Supported · Public rank #70

90% interval 39.1–69.5

Model B
OpenAI logo

OpenAI

66.7/100

Supported · Public rank #30

90% interval 62.2–71.2

Shared results
6
Gemini 3 Flash only
5
GPT-5.4 only
36
Like-for-like categories
3 / 8
Supported: Gemini 3 Flash and GPT-5.4How the comparison works

Which one for your work

Recommendations appear only when a shared evidence basis or an explicit operating constraint supports the call. Secondary and unsupported use cases stay disclosed below the initial list.

  • Coding work

    Code generation, repair, and software-engineering tasks

    GPT-5.4

    GPT-5.4 has the higher public coding point estimate, 47.7 to 32.1, with Supported evidence for both models. The conditional ranges do not establish rank confidence.

    Confidence: limited
  • Agentic work

    Tool use, computer use, and multi-step task completion

    GPT-5.4

    GPT-5.4 has the higher public agentic point estimate, 52.1 to 32.4, with Supported evidence for both models. The conditional ranges do not establish rank confidence.

    Confidence: limited
  • Long documents

    Prompts that approach the documented context limit

    GPT-5.4

    GPT-5.4 has the larger documented context window.

    Confidence: documented
Show secondary and unsupported calls
  • Chat turn cost

    1K fresh input + 500 output tokens

    Gemini 3 Flash

    Gemini 3 Flash has the lower estimated token cost for this stated workload. Costs use the listed standard API rates.

    Confidence: listed-rates
  • Cache-heavy agent loop cost

    200K cached + 20K fresh input + 10K output tokens

    Gemini 3 Flash

    Gemini 3 Flash has the lower estimated token cost for this stated workload. Costs use the listed standard API rates.

    Confidence: listed-rates
  • Repository review cost

    50K fresh input + 3K output tokens

    Gemini 3 Flash

    Gemini 3 Flash has the lower estimated token cost for this stated workload. Costs use the listed standard API rates.

    Confidence: listed-rates

Which one for a specific job

Choose a job from the LLM Selector's task catalog to see the category row it rests on, under the same basis rules as the table below. A directional row stays directional; choosing a job never creates a winner.

The same task catalog as the LLM Selector. Each job names the evidence surface it rests on; nothing here adds a new score.

32.1Gemini 3 Flash47.7GPT-5.4

Like-for-like · BenchAlign v5.8

GPT-5.4 has the higher coding point estimate. Conditional score ranges do not establish rank confidence.

Coding scores combine specific tasks and setups. Match the editor, harness, and effort to your workflow.

Same basis rules as the category table below

What is actually comparable

Shared results can support a head-to-head reading. Results present for only one model describe coverage, not superiority.

1 category rests on Estimated evidence or different evidence sets. Those rows remain visible for coverage context but do not name a winner.

Shape of the matched evidence

Only shared public evidence is shown. Sparse evidence stays a ruled list rather than being closed into a radar shape.

Too few matched category axes support a radar. The ruled list below shows only shared benchmark results; positions use each benchmark’s normalized display scale when available.

  • FrontierMath v2 (Tier 4)Math

    Normalized gap 31.9
    Gemini 3 Flash:17.073%
    GPT-5.4:49.000%
  • FrontierMath v2 (Tiers 1-3)Math

    Normalized gap 27.4
    Gemini 3 Flash:51.228%
    GPT-5.4:78.596%
Bars run 0–100 on each benchmark’s normalized display scale

Category results, on a stated basis

Each row shows the public-lane category score for both models: the BenchAlign v5.8 lane for agentic, coding, and knowledge, and the weighted public rows elsewhere, with the same rank each model page reports. A row is like-for-like only when both scores rest on Supported evidence or the same weighted set. Directional and not-comparable rows remain visible, but they never receive a winner.

Agentic

Like-for-like
Gemini 3 Flash
32.4
Supported · #88/128
GPT-5.4
52.1
Supported · #44/128
Basis
BenchAlign v5.8 lane · 4 vs 15 public rows
Reading
GPT-5.4 leads

Coding

Like-for-like
Gemini 3 Flash
32.1
Supported · #88/150
GPT-5.4
47.7
Supported · #48/150
Basis
BenchAlign v5.8 lane · 3 vs 6 public rows
Reading
GPT-5.4 leads · intervals overlap

Knowledge

Like-for-like
Gemini 3 Flash
55.7
Supported · #55/184
GPT-5.4
69.1
Supported · #20/184
Basis
BenchAlign v5.8 lane · 2 vs 7 public rows
Reading
GPT-5.4 leads · intervals overlap

Instruction following

Directional only
Gemini 3 Flash
66.1
#76/148
GPT-5.4
90.7
#23/148
Basis
Provisional lane · 0 vs 0 weighted rows
Reading
Directional only

Reasoning

Not comparable
Gemini 3 Flash
63.8
Unranked · 2 rankable rows
GPT-5.4
64.2
#23/28
Basis
Provisional lane · 0 vs 2 weighted rows
Reading
Not comparable

Multimodal

Not comparable
Gemini 3 Flash
80.3
Unranked · 1 rankable row
GPT-5.4
73.1
#30/54
Basis
Provisional lane · 0 vs 3 weighted rows
Reading
Not comparable

Multilingual

Not comparable
Gemini 3 Flash
Not ranked
GPT-5.4
Not ranked
Basis
Provisional lane · 0 vs 0 weighted rows
Reading
Not comparable

Math

Not comparable
Gemini 3 Flash
57.4
Unranked · 2 rankable rows
GPT-5.4
82.0
Unranked · 2 rankable rows
Basis
Provisional lane · 2 vs 2 weighted rows
Reading
Not comparable

Ranks count the models scored in each category’s lane, so the agentic, coding, and knowledge denominators (BenchAlign v5.8) differ from the provisional-lane categories. Unranked scores sit on the provisional lane’s scale but never name a winner. Like-for-like rows within 0.5 points read as a practical tie.

Supported evidence per lane · bars run 0–100Methodology

What each workload costs

Three fixed token mixes turn per-token rates into comparable decisions. Each scenario states context fit and whether cached input had to fall back to the published list-input rate.

Chat turn

1K fresh input + 500 output tokens

Gemini 3 Flash
$0.002
Fits in one request
GPT-5.4
$0.01
Fits in one request

Gemini 3 Flash has the lower modeled cost

Costs use the listed standard API rates.

Repository review

50K fresh input + 3K output tokens

Gemini 3 Flash
$0.034
Fits in one request
GPT-5.4
$0.17
Fits in one request

Gemini 3 Flash has the lower modeled cost

Costs use the listed standard API rates.

Cache-heavy agent loop

200K cached + 20K fresh input + 10K output tokens

Gemini 3 Flash
$0.05
Fits in one request
GPT-5.4
$0.25
Fits in one request

Gemini 3 Flash has the lower modeled cost

Costs use the listed standard API rates.

Cached input falls back to the list input rate only where a cached rate is unpublished

Specification differences

Sourced differences are shown directly. Missing facts stay explicit instead of being inferred from a model name or family.

Cached-input rate

A missing cached-input rate falls back to the listed input rate only in the stated workload estimate.

Gemini 3 Flash

$0.05 per 1M cached input tokens

Google Gemini API pricing

GPT-5.4

$0.25 per 1M cached input tokens

OpenAI pricing

Documented inputs

Gemini 3 Flash

Not sourced

GPT-5.4

Not sourced

Documented outputs

Gemini 3 Flash

Not sourced

GPT-5.4

Not sourced

Provider availability

Gemini 3 Flash

Not sourced

GPT-5.4

Not sourced

Reasoning profile

Gemini 3 Flash

Non-Reasoning

GPT-5.4

Reasoning

Weight access

Gemini 3 Flash

Proprietary

GPT-5.4

Proprietary

License

Gemini 3 Flash

Proprietary

GPT-5.4

Proprietary

Release date

Gemini 3 Flash

2025-12-01

GPT-5.4

2026-03-05

If you already use one of these models

Deployment change
The models list different providers, so authentication, endpoint behavior, limits, and feature support may change.
Quality signal
GPT-5.4 has the higher public score estimate, 66.7 versus 54.28, but the 90% score intervals overlap.
Workload cost
Repository review: $0.034 vs $0.17. Cache-heavy agent loop: $0.05 vs $0.25.
Context tradeoff
GPT-5.4 has the larger documented window (1.05M).
Run the same representative tasks against both endpoints before changing production traffic.

Questions

Which is better, Gemini 3 Flash or GPT-5.4?

GPT-5.4 has the higher public score estimate, 66.7 versus 54.28, but the 90% score intervals overlap. The higher estimate is not a decisive winner because the uncertainty ranges overlap.

Which is better for coding, Gemini 3 Flash or GPT-5.4?

GPT-5.4 has the higher public coding point estimate, 47.7 to 32.1, with Supported evidence for both models. The conditional ranges do not establish rank confidence.

Which is better for agentic tasks, Gemini 3 Flash or GPT-5.4?

GPT-5.4 has the higher public agentic tasks point estimate, 52.1 to 32.4, with Supported evidence for both models. The conditional ranges do not establish rank confidence.

Which costs less, Gemini 3 Flash or GPT-5.4?

For the stated presets, chat costs $0.002 on Gemini 3 Flash and $0.01 on GPT-5.4; repository review costs $0.034 and $0.17; the cache-heavy agent loop costs $0.05 and $0.25. Costs use the listed standard API rates.

Which has the larger context window, Gemini 3 Flash or GPT-5.4?

GPT-5.4 has the larger documented context window: 1.05M, compared with 1M.

Benchmark evidence

The full public result ledger is available for audit without forcing a wide desktop table onto a phone.

Browse raw public benchmark evidence47 rows

Agentic

  • Gemini 3 Flash49.2%
    GPT-5.460.3%

    GPT-5.4 leads this result

  • Gemini 3 Flash56.63%
    GPT-5.464.89%

    GPT-5.4 leads this result

  • Gemini 3 Flash11.4%
    GPT-5.438.9%

    GPT-5.4 leads this result

  • Terminal-Bench 2.1 (Vals)

    Gemini 3 Flash53.9%
    Source
    GPT-5.4—

    Not directly comparable

  • Terminal-Bench 2.0

    Gemini 3 Flash—
    GPT-5.475.1%
    Source

    Not directly comparable

  • CyberGym

    Gemini 3 Flash—
    GPT-5.479.0%
    Source

    Not directly comparable

  • BrowseComp

    Gemini 3 Flash—
    GPT-5.482.7%
    Source

    Not directly comparable

  • OSWorld-Verified

    Gemini 3 Flash—
    GPT-5.475%
    Source

    Not directly comparable

  • MCP Atlas

    Gemini 3 Flash—
    GPT-5.470.6%
    Source

    Not directly comparable

  • Toolathlon

    Gemini 3 Flash—
    GPT-5.454.6%
    Source

    Not directly comparable

  • τ²-bench results

    Gemini 3 Flash—
    GPT-5.498.9%
    Source

    Not directly comparable

  • DeepSearchQA

    Gemini 3 Flash—
    GPT-5.473.6%
    Source

    Not directly comparable

  • ResearchClawBench

    Gemini 3 Flash—
    GPT-5.415.3%
    Source

    Not directly comparable

  • ExploitGym

    Gemini 3 Flash—
    GPT-5.46.0%
    Source

    Not directly comparable

  • ApprenticeBench

    Gemini 3 Flash—
    GPT-5.411%
    Source

    Not directly comparable

  • MazeBench

    Gemini 3 Flash—
    GPT-5.40%
    Source

    Not directly comparable

Coding

  • Vibe Code Bench

    Shared source
    Gemini 3 Flash20.20%
    GPT-5.467.42%

    GPT-5.4 leads this result

  • LiveCodeBench (Vals)

    Gemini 3 Flash85.6%
    Source
    GPT-5.4—

    Not directly comparable

  • SWE-bench (Vals)

    Gemini 3 Flash75.0%
    Source
    GPT-5.4—

    Not directly comparable

  • LiveCodeBench Pro

    Gemini 3 Flash—
    GPT-5.487.5%
    Source

    Not directly comparable

  • SWE-bench Pro

    Gemini 3 Flash—
    GPT-5.457.7%
    Source

    Not directly comparable

  • React Native Evals

    Gemini 3 Flash—
    GPT-5.485.3%
    Source

    Not directly comparable

  • Terminal-Bench 2.0

    Gemini 3 Flash—
    GPT-5.475.1%
    Source

    Not directly comparable

  • PostTrainBench v1.1

    Gemini 3 Flash—
    GPT-5.419.0%
    Source

    Not directly comparable

Reasoning

  • ARC-AGI-2

    Gemini 3 Flash—
    GPT-5.474.0%
    Source

    Not directly comparable

  • ARC-AGI-3

    Gemini 3 Flash—
    GPT-5.40.2%
    Source

    Not directly comparable

  • ARC-AGI-1

    Gemini 3 Flash—
    GPT-5.493.67%
    Source

    Not directly comparable

Multimodal

  • MMMU-Pro

    Gemini 3 Flash—
    GPT-5.481.2%
    Source

    Not directly comparable

  • OfficeQA Pro

    Gemini 3 Flash—
    GPT-5.453.2%
    Source

    Not directly comparable

  • MMMU-Pro w/ Python

    Gemini 3 Flash—
    GPT-5.482.1%
    Source

    Not directly comparable

  • CharXiv

    Gemini 3 Flash—
    GPT-5.482.8%
    Source

    Not directly comparable

  • ERQA

    Gemini 3 Flash—
    GPT-5.465.4%
    Source

    Not directly comparable

  • SimpleVQA

    Gemini 3 Flash—
    GPT-5.461.1%
    Source

    Not directly comparable

  • ScreenSpot Pro

    Gemini 3 Flash—
    GPT-5.485.4%
    Source

    Not directly comparable

  • ZeroBench

    Gemini 3 Flash—
    GPT-5.441.0%
    Source

    Not directly comparable

  • MedXpertQA (MM)

    Gemini 3 Flash—
    GPT-5.477.1%
    Source

    Not directly comparable

Knowledge

  • GPQA Diamond (Vals)

    Gemini 3 Flash87.9%
    Source
    GPT-5.4—

    Not directly comparable

  • MMLU-Pro (Vals)

    Gemini 3 Flash88.6%
    Source
    GPT-5.4—

    Not directly comparable

  • GPQA

    Gemini 3 Flash—
    GPT-5.492.8%
    Source

    Not directly comparable

  • HLE

    Gemini 3 Flash—
    GPT-5.452.1%
    Source

    Not directly comparable

  • HLE w/o tools

    Gemini 3 Flash—
    GPT-5.439.8%
    Source

    Not directly comparable

  • GPQA-D

    Gemini 3 Flash—
    GPT-5.492.8%
    Source

    Not directly comparable

  • HealthBench Hard

    Gemini 3 Flash—
    GPT-5.440.1%
    Source

    Not directly comparable

  • MedXpertQA (Text)

    Gemini 3 Flash—
    GPT-5.459.6%
    Source

    Not directly comparable

  • HealthBench Professional

    Gemini 3 Flash—
    GPT-5.448.1%
    Source

    Not directly comparable

Math

  • FrontierMath v2 (Tiers 1-3)

    Shared source
    Gemini 3 Flash51.228%
    GPT-5.478.596%

    GPT-5.4 leads this result

  • FrontierMath v2 (Tier 4)

    Shared source
    Gemini 3 Flash17.073%
    GPT-5.449.000%

    GPT-5.4 leads this result

47 public results · 6 shared

Watch Gemini 3 Flash vs GPT-5.4

One weekly email when material rank, price, or benchmark evidence changes make this matchup worth revisiting.

Read a sample issue

Join 5,600+ readers.

Last updated October 17, 2026