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Model A
Gemini 3.6 Flash

Google

70.11/100

Supported · Public rank #21

90% interval 63.775.9

Gemini 3.6 Flash vs GPT-5.4 mini

Updated September 4, 2026. Public scores include evidence status and uncertainty. They are not guarantees for a specific workload.

OpenAI logo
Model B
GPT-5.4 mini

OpenAI

62.63/100

Supported · Public rank #59

90% interval 54.670.7

Decision reading

Gemini 3.6 Flash has the higher public score estimate, 70.11 versus 62.63, 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.

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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

    Gemini 3.6 Flash

    Gemini 3.6 Flash leads on the public coding lane, 58.9 to 42.9, with Supported evidence for both models, although the 90% intervals overlap.

    Confidence: limited

  • Long documents

    Prompts that approach the documented context limit

    Gemini 3.6 Flash

    Gemini 3.6 Flash has the larger documented context window.

    Confidence: documented

  • Chat turn cost

    1K fresh input + 500 output tokens

    GPT-5.4 mini

    GPT-5.4 mini has the lower estimated token cost for this stated workload. Costs use the listed standard API rates.

    Confidence: listed-rates

Show secondary and unsupported calls
  • Cache-heavy agent loop cost

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

    GPT-5.4 mini

    GPT-5.4 mini 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

    GPT-5.4 mini

    GPT-5.4 mini has the lower estimated token cost for this stated workload. Costs use the listed standard API rates.

    Confidence: listed-rates

  • Agentic work

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

    Not enough matched evidence

    GPT-5.4 mini is scored on Estimated evidence for agentic, so the reading is directional rather than like-for-like.

    Confidence: limited

What is actually comparable

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

Shared results
6
Gemini 3.6 Flash only
2
GPT-5.4 mini only
13
Like-for-like categories
2 / 8

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

Category results, on a stated basis

Each row shows the public-lane category score for both models: the BenchAlign 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.

Coding

Like-for-like
Gemini 3.6 Flash
58.9
Supported · #30/183
GPT-5.4 mini
42.9
Supported · #125/183
Basis
BenchAlign lane · 4 vs 4 public rows
Reading
Gemini 3.6 Flash leads · intervals overlap

Knowledge

Like-for-like
Gemini 3.6 Flash
68.6
Supported · #18/181
GPT-5.4 mini
56.4
Supported · #53/181
Basis
BenchAlign lane · 2 vs 5 public rows
Reading
Gemini 3.6 Flash leads · intervals overlap

Agentic

Directional only
Gemini 3.6 Flash
50.7
Supported · #60/151
GPT-5.4 mini
42.4
Estimated · #113/151
Basis
BenchAlign lane · 2 vs 6 public rows
Reading
Directional only

Reasoning

Not comparable
Gemini 3.6 Flash
77.8
Unranked · 2 rankable rows
GPT-5.4 mini
73.5
Unranked · 2 rankable rows
Basis
Provisional lane · 0 vs 0 weighted rows
Reading
Not comparable

Math

Not comparable
Gemini 3.6 Flash
Not ranked
GPT-5.4 mini
44.5
Unranked · 2 rankable rows
Basis
Provisional lane · 0 vs 2 weighted rows
Reading
Not comparable

Multilingual

Not comparable
Gemini 3.6 Flash
Not ranked
GPT-5.4 mini
Not ranked
Basis
Provisional lane · 0 vs 0 weighted rows
Reading
Not comparable

Multimodal

Not comparable
Gemini 3.6 Flash
82.3
Unranked · 1 rankable row
GPT-5.4 mini
56.6
#32/48
Basis
Provisional lane · 0 vs 1 weighted rows
Reading
Not comparable

Instruction following

Not comparable
Gemini 3.6 Flash
Not ranked
GPT-5.4 mini
89.6
#23/120
Basis
Provisional lane · 0 vs 0 weighted rows
Reading
Not comparable

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

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.

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 3.6 Flash
$0.00525
Fits in one request
GPT-5.4 mini
$0.003
Fits in one request

GPT-5.4 mini has the lower modeled cost

Costs use the listed standard API rates.

Repository review

50K fresh input + 3K output tokens

Gemini 3.6 Flash
$0.0975
Fits in one request
GPT-5.4 mini
$0.051
Fits in one request

GPT-5.4 mini 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 3.6 Flash
$0.135
Fits in one request
GPT-5.4 mini
$0.075
Fits in one request

GPT-5.4 mini has the lower modeled cost

Costs use the listed standard API rates.

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 3.6 Flash

$0.15 per 1M cached input tokens

Google Gemini API pricing

GPT-5.4 mini

$0.075 per 1M cached input tokens

OpenAI pricing

Reasoning profile

Gemini 3.6 Flash

Reasoning

GPT-5.4 mini

Reasoning

Weight access

Gemini 3.6 Flash

Proprietary

GPT-5.4 mini

Proprietary

License

Gemini 3.6 Flash

Proprietary

GPT-5.4 mini

Proprietary

Release date

Gemini 3.6 Flash

2026-07-21

GPT-5.4 mini

2026-03-17

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
Gemini 3.6 Flash has the higher public score estimate, 70.11 versus 62.63, but the 90% score intervals overlap.
Workload cost
Repository review: $0.0975 vs $0.051. Cache-heavy agent loop: $0.135 vs $0.075.
Context tradeoff
Gemini 3.6 Flash has the larger documented window (1M).

Run the same representative tasks against both endpoints before changing production traffic.

Benchmark evidence

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

Browse raw public benchmark evidence21 rows

Agentic

  • OSWorld-Verified

    Gemini 3.6 Flash83%
    Source
    GPT-5.4 mini72.1%
    Source

    Gemini 3.6 Flash leads this result

  • Terminal-Bench 2.1 (Vals)

    Gemini 3.6 Flash73.8%
    Source
    GPT-5.4 mini54.7%
    Source

    Gemini 3.6 Flash leads this result

  • Terminal-Bench 2.0

    Gemini 3.6 Flash
    GPT-5.4 mini60%
    Source

    Not directly comparable

  • MCP Atlas

    Gemini 3.6 Flash
    GPT-5.4 mini57.7%
    Source

    Not directly comparable

  • Toolathlon

    Gemini 3.6 Flash
    GPT-5.4 mini42.9%
    Source

    Not directly comparable

  • τ²-bench results

    Gemini 3.6 Flash
    GPT-5.4 mini93.4%
    Source

    Not directly comparable

Coding

  • deepSwe

    Gemini 3.6 Flash49%
    Source
    GPT-5.4 mini

    Not directly comparable

  • cursorBench32

    Gemini 3.6 Flash53.5%
    Source
    GPT-5.4 mini

    Not directly comparable

  • LiveCodeBench (Vals)

    Gemini 3.6 Flash88.1%
    Source
    GPT-5.4 mini81.5%
    Source

    Gemini 3.6 Flash leads this result

  • SWE-bench (Vals)

    Gemini 3.6 Flash79.6%
    Source
    GPT-5.4 mini73.0%
    Source

    Gemini 3.6 Flash leads this result

  • Vibe Code Bench

    Gemini 3.6 Flash
    GPT-5.4 mini47.97%
    Source

    Not directly comparable

  • FrontierCode 1.1 Main

    Gemini 3.6 Flash
    GPT-5.4 mini27.0%
    Source

    Not directly comparable

Knowledge

  • GPQA Diamond (Vals)

    Gemini 3.6 Flash93.4%
    Source
    GPT-5.4 mini83.1%
    Source

    Gemini 3.6 Flash leads this result

  • MMLU-Pro (Vals)

    Gemini 3.6 Flash89.3%
    Source
    GPT-5.4 mini84.6%
    Source

    Gemini 3.6 Flash leads this result

  • GPQA

    Gemini 3.6 Flash
    GPT-5.4 mini88%
    Source

    Not directly comparable

  • HLE

    Gemini 3.6 Flash
    GPT-5.4 mini41.5%
    Source

    Not directly comparable

  • HLE w/o tools

    Gemini 3.6 Flash
    GPT-5.4 mini28.2%
    Source

    Not directly comparable

Math

  • FrontierMath v2 (Tiers 1-3)

    Gemini 3.6 Flash
    GPT-5.4 mini28.280%
    Source

    Not directly comparable

  • FrontierMath v2 (Tier 4)

    Gemini 3.6 Flash
    GPT-5.4 mini2.080%
    Source

    Not directly comparable

Multimodal

  • MMMU-Pro

    Gemini 3.6 Flash
    GPT-5.4 mini76.6%
    Source

    Not directly comparable

  • MMMU-Pro w/ Python

    Gemini 3.6 Flash
    GPT-5.4 mini78%
    Source

    Not directly comparable

Frequently asked questions

Which is better, Gemini 3.6 Flash or GPT-5.4 mini?

Gemini 3.6 Flash has the higher public score estimate, 70.11 versus 62.63, 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 3.6 Flash or GPT-5.4 mini?

Gemini 3.6 Flash leads the public coding lane, 58.9 to 42.9, with Supported evidence for both models, although the 90% intervals overlap.

Which is better for agentic tasks, Gemini 3.6 Flash or GPT-5.4 mini?

Gemini 3.6 Flash scores higher for agentic tasks on the public lane, 50.7 to 42.4. GPT-5.4 mini is scored on Estimated evidence for agentic tasks, so the reading is directional rather than like-for-like. BenchLM does not name a winner for agentic tasks from a directional reading; read the shared benchmark rows directly and test the models on the same task set.

Which costs less, Gemini 3.6 Flash or GPT-5.4 mini?

For the stated presets, chat costs $0.00525 on Gemini 3.6 Flash and $0.003 on GPT-5.4 mini; repository review costs $0.0975 and $0.051; the cache-heavy agent loop costs $0.135 and $0.075. Costs use the listed standard API rates.

Which has the larger context window, Gemini 3.6 Flash or GPT-5.4 mini?

Gemini 3.6 Flash has the larger documented context window: 1M, compared with 400K.

Related comparisons

Last updated September 4, 2026

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