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BenchLM
Data

Gemini 3.5 Flash vs Grok 4.6

Updated November 10, 2026. Rank says Grok 4.6 is ahead. Price, access, and your workload can each overturn that. Public scores include evidence status and uncertainty.

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Decision reading

Grok 4.6 has the higher public score estimate, 66.47 versus 61.48, but the 90% score intervals overlap. Treat that as a lead, not a settled winner. 11 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

61.48/100

Supported · Public rank #49

90% interval 52.9–70.1

Model B
xAI logo

xAI

66.47/100

Supported · Public rank #24

90% interval 63.2–69.7

API price per 1M tokens

Gemini 3.5 Flash: $1.50 input / $9 output

Grok 4.6: $2 input / $6 output

Context window

Gemini 3.5 Flash: 1M

Grok 4.6: 500K

Released

Gemini 3.5 Flash: May 19, 2026

Grok 4.6: August 12, 2026

Shared results
11
Gemini 3.5 Flash only
20
Grok 4.6 only
13
Like-for-like categories
3 / 8
Supported: Gemini 3.5 Flash and Grok 4.6How 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

    Grok 4.6

    Grok 4.6 has the higher public coding point estimate, 58.6 to 50.9, 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

    Grok 4.6

    Grok 4.6 has the higher public agentic point estimate, 69.7 to 51.1, 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

    Gemini 3.5 Flash

    Gemini 3.5 Flash has the larger documented context window.

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

    1K fresh input + 500 output tokens

    Grok 4.6

    Grok 4.6 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 3.5 Flash

    Gemini 3.5 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 3.5 Flash

    Gemini 3.5 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.

50.9Gemini 3.5 Flash58.6Grok 4.6

Like-for-like · BenchAlign v5.8

Grok 4.6 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

Or describe your own job

The LLM Selector reads what you need a model for and returns a shortlist, ranked in the same order the job pages publish.

Describe the task and constraints. This selector recommends models; it cannot carry out the task or access your files and accounts.

We keep what you type here, drafts included, for 180 days, and after that only the job and requirements read from it. Nothing is tied to your IP address or account. Leave out names and other personal details. Privacy

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.

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, reasoning, multimodal, 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 3.5 Flash
51.1
Supported · #51/132
Grok 4.6
69.7
Supported · #11/132
Basis
BenchAlign v5.8 lane · 9 vs 7 public rows
Reading
Grok 4.6 leads · intervals overlap

Coding

Like-for-like
Gemini 3.5 Flash
50.9
Supported · #46/158
Grok 4.6
58.6
Supported · #23/158
Basis
BenchAlign v5.8 lane · 7 vs 9 public rows
Reading
Grok 4.6 leads · intervals overlap

Knowledge

Like-for-like
Gemini 3.5 Flash
65.2
Supported · #28/179
Grok 4.6
67.9
Supported · #21/179
Basis
BenchAlign v5.8 lane · 4 vs 2 public rows
Reading
Grok 4.6 leads · intervals overlap

Reasoning

Directional only
Gemini 3.5 Flash
52.4
Estimated · #50/158
Grok 4.6
65.0
Supported · #22/158
Basis
BenchAlign v5.8 lane · 4 vs 3 public rows
Reading
Directional only

Multimodal

Not comparable
Gemini 3.5 Flash
68.6
Supported · #16/67
Grok 4.6
Not ranked
Basis
BenchAlign v5.8 lane · 5 vs 0 public rows
Reading
Not comparable

Multilingual

Not comparable
Gemini 3.5 Flash
Not ranked
Grok 4.6
Not ranked
Basis
Provisional lane · 0 vs 0 weighted rows
Reading
Not comparable

Instruction following

Not comparable
Gemini 3.5 Flash
87.7
#39/157
Grok 4.6
Not ranked
Basis
Provisional lane · 0 vs 0 weighted rows
Reading
Not comparable

Math

Not comparable
Gemini 3.5 Flash
62.6
Unranked · 2 rankable rows
Grok 4.6
65.6
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, reasoning, multimodal, 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 3.5 Flash
$0.006
Fits in one request
Grok 4.6
$0.005
Fits in one request

Grok 4.6 has the lower modeled cost

Costs use the listed standard API rates.

Repository review

50K fresh input + 3K output tokens

Gemini 3.5 Flash
$0.102
Fits in one request
Grok 4.6
$0.118
Fits in one request

Gemini 3.5 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 3.5 Flash
$0.15
Fits in one request
Grok 4.6
$0.2
Fits in one request

Gemini 3.5 Flash has the lower modeled cost

Costs use the listed standard API rates.

Your workload

Enter a month of tokens to price it at both models’ listed API rates.

Gemini 3.5 Flash
$33.00
per month
Grok 4.6
$32.00
per month

Standard listed rates, no batch or volume discounts.

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 3.5 Flash

$0.15 per 1M cached input tokens

Google Gemini API pricing

Grok 4.6

$0.5 per 1M cached input tokens

xAI Grok 4.6 release notes

Provider availability

Gemini 3.5 Flash

Not sourced

Grok 4.6

Not sourced

Reasoning profile

Gemini 3.5 Flash

Reasoning

Grok 4.6

Reasoning

Weight access

Gemini 3.5 Flash

Proprietary

Grok 4.6

Proprietary

License

Gemini 3.5 Flash

Proprietary

Grok 4.6

Proprietary

Release date

Gemini 3.5 Flash

2026-05-19

Grok 4.6

2026-08-12

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
Grok 4.6 has the higher public score estimate, 66.47 versus 61.48, but the 90% score intervals overlap.
Workload cost
Repository review: $0.102 vs $0.118. Cache-heavy agent loop: $0.15 vs $0.2.
Context tradeoff
Gemini 3.5 Flash has the larger documented window (1M).
Run the same representative tasks against both endpoints before changing production traffic.

Questions

Which is better, Gemini 3.5 Flash or Grok 4.6?

Grok 4.6 has the higher public score estimate, 66.47 versus 61.48, 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 3.5 Flash or Grok 4.6?

Grok 4.6 has the higher public coding point estimate, 58.6 to 50.9, with Supported evidence for both models. The conditional ranges do not establish rank confidence.

Which is better for agentic tasks, Gemini 3.5 Flash or Grok 4.6?

Grok 4.6 has the higher public agentic tasks point estimate, 69.7 to 51.1, with Supported evidence for both models. The conditional ranges do not establish rank confidence.

Which costs less, Gemini 3.5 Flash or Grok 4.6?

For the stated presets, chat costs $0.006 on Gemini 3.5 Flash and $0.005 on Grok 4.6; repository review costs $0.102 and $0.118; the cache-heavy agent loop costs $0.15 and $0.2. Costs use the listed standard API rates.

Which has the larger context window, Gemini 3.5 Flash or Grok 4.6?

Gemini 3.5 Flash has the larger documented context window: 1M, compared with 500K.

Benchmark evidence

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

Browse raw public benchmark evidence44 rows

Agentic

  • Terminal-Bench 2.1

    Gemini 3.5 Flash76.2%
    Source
    Grok 4.6—

    Not directly comparable

  • MCP Atlas

    Gemini 3.5 Flash83.6%
    Source
    Grok 4.6—

    Not directly comparable

  • Toolathlon

    Gemini 3.5 Flash56.5%
    Source
    Grok 4.6—

    Not directly comparable

  • OSWorld-Verified

    Gemini 3.5 Flash78.4%
    Source
    Grok 4.6—

    Not directly comparable

  • Finance Agent v2

    Gemini 3.5 Flash57.9%
    Source
    Grok 4.6—

    Not directly comparable

  • Gert Labs

    Gemini 3.5 Flash61.85%
    Source
    Grok 4.6—

    Not directly comparable

  • ResearchClawBench

    Gemini 3.5 Flash18.0%
    Source
    Grok 4.6—

    Not directly comparable

  • Terminal-Bench 2.1 (Vals)

    Gemini 3.5 Flash74.2%
    Source
    Grok 4.678.3%
    Source

    Grok 4.6 leads this result

  • MazeBench

    Gemini 3.5 Flash0%
    Source
    Grok 4.61%
    Source

    Grok 4.6 leads this result

  • Terminal-Bench 4.1

    Gemini 3.5 Flash—
    Grok 4.619.70%
    Source

    Not directly comparable

  • Terminal-Bench 3.0

    Gemini 3.5 Flash—
    Grok 4.626.5%
    Source

    Not directly comparable

  • APEX-Agents

    Gemini 3.5 Flash—
    Grok 4.657.5%
    Source

    Not directly comparable

  • ApprenticeBench

    Gemini 3.5 Flash—
    Grok 4.613%
    Source

    Not directly comparable

  • CWE-bench v1

    Gemini 3.5 Flash—
    Grok 4.657.0%
    Source

    Not directly comparable

Coding

  • Terminal-Bench 2.1

    Gemini 3.5 Flash76.2%
    Source
    Grok 4.6—

    Not directly comparable

  • SWE-bench Pro

    Gemini 3.5 Flash55.1%
    Source
    Grok 4.6—

    Not directly comparable

  • Vibe Code Bench

    Gemini 3.5 Flash48.68%
    Source
    Grok 4.6—

    Not directly comparable

  • cursorBench31

    Gemini 3.5 Flash49.8%
    Source
    Grok 4.6—

    Not directly comparable

  • CursorBench 3.2

    Shared source
    Gemini 3.5 Flash48.8%
    Grok 4.670.8%

    Grok 4.6 leads this result

  • LiveCodeBench (Vals)

    Gemini 3.5 Flash87.6%
    Source
    Grok 4.688.2%
    Source

    Grok 4.6 leads this result

  • SWE-bench (Vals)

    Gemini 3.5 Flash78.8%
    Source
    Grok 4.695.6%
    Source

    Grok 4.6 leads this result

  • Bug Hunt Bench

    Gemini 3.5 Flash—
    Grok 4.627.0 fixes
    Source

    Not directly comparable

  • DeepSWE

    Gemini 3.5 Flash—
    Grok 4.665.9%
    Source

    Not directly comparable

  • FrontierCode 1.1 Extended

    Gemini 3.5 Flash—
    Grok 4.661.3%
    Source

    Not directly comparable

  • VulcanBench v3

    Gemini 3.5 Flash—
    Grok 4.687.0%
    Source

    Not directly comparable

  • FrontierSWE v2

    Gemini 3.5 Flash—
    Grok 4.625.3%
    Source

    Not directly comparable

  • CursorBench 4.0

    Gemini 3.5 Flash—
    Grok 4.641.4%
    Source

    Not directly comparable

Reasoning

  • MRCRv2

    Gemini 3.5 Flash77.3%
    Source
    Grok 4.6—

    Not directly comparable

  • MRCR 1M

    Gemini 3.5 Flash26.6%
    Source
    Grok 4.6—

    Not directly comparable

  • ARC-AGI-2

    Gemini 3.5 Flash72.1%
    Source
    Grok 4.667.1%
    Source

    Gemini 3.5 Flash leads this result

  • ARC-AGI-1

    Gemini 3.5 Flash92.50%
    Source
    Grok 4.687.00%
    Source

    Gemini 3.5 Flash leads this result

  • ARC-AGI-3

    Gemini 3.5 Flash—
    Grok 4.62.1%
    Source

    Not directly comparable

Multimodal

  • ExtractBench (LlamaIndex)

    Gemini 3.5 Flash79.84%
    Source
    Grok 4.6—

    Not directly comparable

  • ParseBench

    Gemini 3.5 Flash73.22%
    Source
    Grok 4.6—

    Not directly comparable

  • CharXiv

    Gemini 3.5 Flash84.2%
    Source
    Grok 4.6—

    Not directly comparable

  • MMMU-Pro

    Gemini 3.5 Flash83.6%
    Source
    Grok 4.6—

    Not directly comparable

  • Blueprint-Bench 2

    Gemini 3.5 Flash33.6%
    Source
    Grok 4.6—

    Not directly comparable

Knowledge

  • GPQA-D

    Gemini 3.5 Flash92.7%
    Source
    Grok 4.6—

    Not directly comparable

  • HLE

    Gemini 3.5 Flash40.2%
    Source
    Grok 4.6—

    Not directly comparable

  • GPQA Diamond (Vals)

    Gemini 3.5 Flash92.7%
    Source
    Grok 4.694.7%
    Source

    Grok 4.6 leads this result

  • MMLU-Pro (Vals)

    Gemini 3.5 Flash89.5%
    Source
    Grok 4.689.4%
    Source

    Gemini 3.5 Flash leads this result

Instruction following

  • Gray Swan IPI (15 attempts)

    Gemini 3.5 Flash—
    Grok 4.651.8%
    Source

    Not directly comparable

Math

  • FrontierMath v2 (Tiers 1-3)

    Shared source
    Gemini 3.5 Flash62.807%
    Grok 4.665.965%

    Grok 4.6 leads this result

  • FrontierMath v2 (Tier 4)

    Shared source
    Gemini 3.5 Flash26.829%
    Grok 4.631.707%

    Grok 4.6 leads this result

44 public results · 11 shared

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Last updated November 10, 2026