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Comparison · 2 models · Updated Nov 2, 2026

Gemini 2.5 Pro Preview 06-05 vs Gemini 4 Argon

Gemini 4 Argon comes out ahead, 52 to 48 on our weighted score, though Gemini 2.5 Pro Preview 06-05 is 16% cheaper per token.

  1. Google

    Gemini 2.5 Pro Preview 06-05

    Released Jun 5, 2025

    48/100
    • ECI—
    • Price$1.22 / $9.75
    • Context1.05M
    Full specs Remove Gemini 2.5 Pro Preview 06-05
  2. Our pick

    Google

    Gemini 4 Argon

    Released Oct 13, 2026New

    52/100
    • ECI166.1
    • Price$2.00 / $10.00
    • Context1.05M
    Full specs Remove Gemini 4 Argon

  3. Add a model

    Make it a three-way comparison.

01 — Verdict

Gemini 4 Argon is our pick

Gemini 4 Argon is the better all-round choice, scoring 52/100 against Gemini 2.5 Pro Preview 06-05 (48). It leads on inputs & features. Gemini 2.5 Pro Preview 06-05 wins on price. The score weighs price 50%, inputs & features 30%, context window 20%. None of the shared benchmarks cover every model here yet, so capability is left out of this verdict.

  • CapabilityNot enough dataNo independent benchmark covers every model here yet
  • Lowest priceGemini 2.5 Pro Preview 06-05Gemini 2.5 Pro Preview 06-05 $3.35 · Gemini 4 Argon $4.00 per 1M tokens (3:1 blend)
  • Longest contextAbout the sameGemini 2.5 Pro Preview 06-05 1,048,576 · Gemini 4 Argon 1,048,576 tokens
  • Widest inputsGemini 4 ArgonGemini 2.5 Pro Preview 06-05: Text, Images, PDFs, Audio · Gemini 4 Argon: Text, Images, PDFs, Audio, Video
  • Self-hostingNo open weightsBoth are available only through APIs
How the score is built
MeasureWeightGemini 2.5 Pro Preview 06-05Gemini 4 Argon
Price50%2420
Inputs & features30%80100
Context window20%6161
Overall100%48/10052/100

Left out because at least one model lacks the data: capability. The remaining weights were rescaled.

02 — Side by side

Every spec in one table

Highlighted cells lead their row. Dashes mean the data is not published.

Gemini 2.5 Pro Preview 06-05 vs Gemini 4 Argon specifications side by side
SpecificationGemini 2.5 Pro Preview 06-05GoogleGemini 4 ArgonGoogle
Capability
Capabilities Index (ECI)—166.1
ECI rank—#7 of 165
GPQA DiamondGraduate-level science questions—96.4%
FrontierMath Tiers 1–3Research-level mathematics—86.0%
OTIS Mock AIME 2024–2025Competition mathematics—100%
SimpleQA VerifiedShort factual questions—76.0%
Price per million tokens
Input$1.22 (best)$2.00
Output$9.75 (best)$10.00
Cached input—$0.10
Blended (3:1)$3.35 (best)$4.00
Long-context rateSame rateSame rate
Price sourceMedian of 4 providersOfficial Google API
Limits
Context window1,048,576 tokens1,048,576 tokens
Max output65,536 tokens65,536 tokens
Inputs and features
TextYesYes
ImagesYesYes
PDFsYesYes
AudioYesYes
VideoNoYes
ReasoningYesYeslow · medium · high
Tool callingYesYes
Structured outputNoYes
Availability
WeightsProprietaryProprietary
API model ID—gemini-4-argon
API providers424 (best)
ReleasedJun 5, 2025Oct 13, 2026
Knowledge cutoffJan 31, 2025Mar 2026
03 — Cost

What would a month cost?

Enter your expected volume in millions of tokens. List prices only; caching and batch discounts would lower these.

  • Gemini 2.5 Pro Preview 06-05$31.69
  • Gemini 4 Argon$40.00
04 — Questions

Which should you choose?

Which is better: Gemini 2.5 Pro Preview 06-05 or Gemini 4 Argon?

Gemini 4 Argon is the better all-round choice, scoring 52/100 against Gemini 2.5 Pro Preview 06-05 (48). It leads on inputs & features. Gemini 2.5 Pro Preview 06-05 wins on price. The score weighs price 50%, inputs & features 30%, context window 20%. None of the shared benchmarks cover every model here yet, so capability is left out of this verdict.

Which is cheaper, Gemini 2.5 Pro Preview 06-05 or Gemini 4 Argon?

Gemini 2.5 Pro Preview 06-05 is cheaper at $1.22 input / $9.75 output per million tokens (median across 4 API providers). Gemini 4 Argon costs $2.00 input / $10.00 output per million tokens (official Google API price). At a typical mix of three input tokens to one output token, that is $3.35 per million tokens for Gemini 2.5 Pro Preview 06-05 versus $4.00 for Gemini 4 Argon (1.2× as much).

Which scores higher on benchmarks?

There is no independent benchmark that covers both models yet. Gemini 2.5 Pro Preview 06-05 has not been scored yet and Gemini 4 Argon has an ECI of 166.1.

Which is better for coding?

There are no published SWE-bench Verified results for Gemini 2.5 Pro Preview 06-05 and Gemini 4 Argon yet, so there is no like-for-like coding score. Test both on a sample of your own tasks. Both support tool calling for agent workflows.

Which has the bigger context window?

Gemini 2.5 Pro Preview 06-05 and Gemini 4 Argon share the same 1,048,576-token context window. Maximum output per response: Gemini 2.5 Pro Preview 06-05 up to 65,536, Gemini 4 Argon up to 65,536 tokens.

Which can read images, PDFs, audio or video?

Gemini 2.5 Pro Preview 06-05 accepts text, images, PDFs and audio; Gemini 4 Argon accepts text, images, PDFs, audio and video. Gemini 4 Argon handles the widest range of inputs.

Are any of these open source?

No. Gemini 2.5 Pro Preview 06-05 and Gemini 4 Argon are proprietary and only available through APIs and apps.

Which is newer?

Gemini 4 Argon is the newest, released Oct 13, 2026. Gemini 2.5 Pro Preview 06-05 came out Jun 5, 2025. Knowledge cutoff: Gemini 2.5 Pro Preview 06-05 Jan 31, 2025, Gemini 4 Argon Mar 2026.

How do you decide the winner?

Each model gets a 0–100 score on capability (50%, independent benchmark results); price (25%, blended price per million tokens (3 input : 1 output), log scale); inputs & features (15%, image, PDF, audio and video input, tool calling, structured output and reasoning); context window (10%, maximum tokens per request, log scale). Dimensions missing for any model are dropped and the remaining weights rescaled, so every model is judged on the same evidence. Specs and prices come from public model listings and the labs’ own API pages; capability scores come from independent benchmark runs. Data updated Nov 2, 2026.

05 — Keep comparing

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