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Comparison · 2 models · Updated Nov 2, 2026

o3-deep-research vs Sarvam-M

o3-deep-research comes out ahead, 49 to 6 on our weighted score, and it is the cheaper option too.

  1. Our pick

    OpenAI

    o3-deep-research

    Released Jun 26, 2025

    49/100
    • ECI—
    • Price$9.00 / $36.00
    • Context200K
  2. Sarvam AI

    Sarvam-M

    Released May 20, 2025

    6/100
    • ECI—
    • Price—
    • Context33K
  3. Add a model

    Make it a three-way comparison.

01 — Verdict

o3-deep-research is our pick

o3-deep-research is the better all-round choice, scoring 49/100 against Sarvam-M (6). It leads on inputs & features and context window. The score weighs inputs & features 60%, context window 40%. 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 priceo3-deep-researcho3-deep-research $15.75 per 1M tokens (3:1 blend) · Sarvam-M unpriced
  • Longest contexto3-deep-researcho3-deep-research 200,000 · Sarvam-M 32,768 tokens
  • Widest inputso3-deep-researcho3-deep-research: Text, Images · Sarvam-M: Text
  • Self-hostingSarvam-MPublishes downloadable weights (Apache 2.0)
How the score is built
MeasureWeighto3-deep-researchSarvam-M
Inputs & features60%6010
Context window40%320
Overall100%49/1006/100

Left out because at least one model lacks the data: capability and price. 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.

o3-deep-research vs Sarvam-M specifications side by side
Specificationo3-deep-researchOpenAISarvam-MSarvam AI
Capability
Capabilities Index (ECI)——
ECI rank——
Price per million tokens
Input$9.00—
Output$36.00—
Cached input——
Blended (3:1)$15.75—
Long-context rateSame rate—
Price sourceMedian of 1 providers—
Limits
Context window200,000 tokens (best)32,768 tokens
Max output100,000 tokens (best)32,768 tokens
Inputs and features
TextYesYes
ImagesYesNo
PDFsNoNo
AudioNoNo
VideoNoNo
ReasoningYesYes
Tool callingYesNo
Structured outputNoNo
Availability
WeightsProprietaryOpenApache 2.0
API model ID——
API providers1—
ReleasedJun 26, 2025May 20, 2025
Knowledge cutoffMay 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.

  • o3-deep-research$162.00
  • Sarvam-M—
04 — Questions

Which should you choose?

Which is better: o3-deep-research or Sarvam-M?

o3-deep-research is the better all-round choice, scoring 49/100 against Sarvam-M (6). It leads on inputs & features and context window. The score weighs inputs & features 60%, context window 40%. None of the shared benchmarks cover every model here yet, so capability is left out of this verdict.

Which is cheaper, o3-deep-research or Sarvam-M?

o3-deep-research is cheaper at $9.00 input / $36.00 output per million tokens (median across 1 API provider). . At a typical mix of three input tokens to one output token, that is $15.75 per million tokens for o3-deep-research versus . Sarvam-M has no published per-token price.

Which scores higher on benchmarks?

There is no independent benchmark that covers both models yet. o3-deep-research has not been scored yet and Sarvam-M has not been scored yet.

Which is better for coding?

There are no published SWE-bench Verified results for o3-deep-research and Sarvam-M yet, so there is no like-for-like coding score. Test both on a sample of your own tasks. Note that Sarvam-M does not support tool calling, which most coding agents need.

Which has the bigger context window?

o3-deep-research has the largest context window at 200,000 tokens, against 32,768 for Sarvam-M. Maximum output per response: o3-deep-research up to 100,000, Sarvam-M up to 32,768 tokens.

Which can read images, PDFs, audio or video?

o3-deep-research accepts text and images; Sarvam-M accepts text. o3-deep-research handles the widest range of inputs.

Are any of these open source?

Sarvam-M publishes its weights (Apache 2.0) and can be self-hosted; o3-deep-research is proprietary.

Which is newer?

o3-deep-research is the newest, released Jun 26, 2025. Sarvam-M came out May 20, 2025. Knowledge cutoff: o3-deep-research May 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 Nov 2, 2026.