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Comparison · 3 models · Updated Oct 4, 2026

Gemini 2.5 Computer Use Preview vs GPT-5.1 Chat vs Seed 1.6

Seed 1.6 comes out ahead, 55 to 38 and 35 on our weighted score, and it is the cheaper option too.

  1. Google

    Gemini 2.5 Computer Use Preview

    Released Oct 7, 2025

    35/100
    • ECI—
    • Price$1.25 / $10.00
    • Context128K
    Full specs Remove Gemini 2.5 Computer Use Preview

  2. OpenAI

    GPT-5.1 Chat

    Released Nov 13, 2025

    38/100
    • ECI—
    • Price$1.25 / $10.00
    • Context128K
    Full specs Remove GPT-5.1 Chat
  3. Our pick

    ByteDance Seed

    Seed 1.6

    Released Oct 15, 2025

    55/100
    • ECI—
    • Price$0.119 / $1.19
    • Context256K
    Full specs Remove Seed 1.6
01 — Verdict

Seed 1.6 is our pick

Seed 1.6 is the better all-round choice, scoring 55/100 against GPT-5.1 Chat (38) and Gemini 2.5 Computer Use Preview (35). It leads on price and context window. GPT-5.1 Chat wins on inputs & features. 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 priceSeed 1.6Seed 1.6 $0.386 · Gemini 2.5 Computer Use Preview $3.44 · GPT-5.1 Chat $3.44 per 1M tokens (3:1 blend)
  • Longest contextSeed 1.6Seed 1.6 256,000 · Gemini 2.5 Computer Use Preview 128,000 · GPT-5.1 Chat 128,000 tokens
  • Widest inputsGemini 2.5 Computer Use Preview and GPT-5.1 ChatGemini 2.5 Computer Use Preview: Text, Images · GPT-5.1 Chat: Text, Images · Seed 1.6: Text
  • Self-hostingNo open weightsAll three are available only through APIs
How the score is built
MeasureWeightGemini 2.5 Computer Use PreviewGPT-5.1 ChatSeed 1.6
Price50%242469
Inputs & features30%607045
Context window20%242436
Overall100%35/10038/10055/100

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 Computer Use Preview vs GPT-5.1 Chat vs Seed 1.6 specifications side by side
SpecificationGemini 2.5 Computer Use PreviewGoogleGPT-5.1 ChatOpenAISeed 1.6ByteDance Seed
Capability
Capabilities Index (ECI)———
ECI rank———
Price per million tokens
Input$1.25$1.25$0.119 (best)
Output$10.00$10.00$1.19 (best)
Cached input——$0.024
Blended (3:1)$3.44$3.44$0.386 (best)
Long-context rateOver 200K: $2.50 / $15.00Same rateOver 32K: $0.178 / $2.37
Price sourceOfficial Google APIMedian of 2 providersOfficial Volcengine Ark API
Limits
Context window128,000 tokens128,000 tokens256,000 tokens (best)
Max output64,000 tokens (best)16,384 tokens64,000 tokens (best)
Inputs and features
TextYesYesYes
ImagesYesYesNo
PDFsNoNoNo
AudioNoNoNo
VideoNoNoNo
ReasoningYesYesYesminimal · low · medium · high
Tool callingYesYesYes
Structured outputNoYesYes
Availability
WeightsProprietaryProprietaryProprietary
API model IDgemini-2.5-computer-use-preview-10-2025—doubao-seed-1-6-251015
API providers222
ReleasedOct 7, 2025Nov 13, 2025Oct 15, 2025
Knowledge cutoffJan 2025Sep 30, 2024—
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 Computer Use Preview$32.50
  • GPT-5.1 Chat$32.50
  • Seed 1.6$3.56
04 — Questions

Which should you choose?

Which is better: Gemini 2.5 Computer Use Preview, GPT-5.1 Chat or Seed 1.6?

Seed 1.6 is the better all-round choice, scoring 55/100 against GPT-5.1 Chat (38) and Gemini 2.5 Computer Use Preview (35). It leads on price and context window. GPT-5.1 Chat wins on inputs & features. 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 Computer Use Preview, GPT-5.1 Chat or Seed 1.6?

Seed 1.6 is cheaper at $0.119 input / $1.19 output per million tokens (official Volcengine Ark API price). Gemini 2.5 Computer Use Preview costs $1.25 input / $10.00 output per million tokens (official Google API price); GPT-5.1 Chat costs $1.25 input / $10.00 output per million tokens (median across 2 API providers). At a typical mix of three input tokens to one output token, that is $0.386 per million tokens for Seed 1.6 versus $3.44 for Gemini 2.5 Computer Use Preview (8.9× as much) and $3.44 for GPT-5.1 Chat (8.9× as much).

Which scores higher on benchmarks?

There is no independent benchmark that covers all three models yet. Gemini 2.5 Computer Use Preview has not been scored yet, GPT-5.1 Chat has not been scored yet and Seed 1.6 has not been scored yet.

Which is better for coding?

There are no published SWE-bench Verified results for Gemini 2.5 Computer Use Preview, GPT-5.1 Chat and Seed 1.6 yet, so there is no like-for-like coding score. Test both on a sample of your own tasks. All three support tool calling for agent workflows.

Which has the bigger context window?

Seed 1.6 has the largest context window at 256,000 tokens, against 128,000 for Gemini 2.5 Computer Use Preview and 128,000 for GPT-5.1 Chat. Maximum output per response: Gemini 2.5 Computer Use Preview up to 64,000, GPT-5.1 Chat up to 16,384, Seed 1.6 up to 64,000 tokens.

Which can read images, PDFs, audio or video?

Gemini 2.5 Computer Use Preview accepts text and images; GPT-5.1 Chat accepts text and images; Seed 1.6 accepts text. Gemini 2.5 Computer Use Preview handles the widest range of inputs.

Are any of these open source?

No. Gemini 2.5 Computer Use Preview, GPT-5.1 Chat and Seed 1.6 are proprietary and only available through APIs and apps.

Which is newer?

GPT-5.1 Chat is the newest, released Nov 13, 2025. Seed 1.6 came out Oct 15, 2025; Gemini 2.5 Computer Use Preview came out Oct 7, 2025. Knowledge cutoff: Gemini 2.5 Computer Use Preview Jan 2025, GPT-5.1 Chat Sep 30, 2024.

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 Oct 4, 2026.

05 — Keep comparing

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