GPT-5.3 Codex vs Sarvam 30B

Side-by-side benchmark comparison across agentic, coding, multimodal, knowledge, reasoning, and math workflows.

Agentic
Coding
Multimodal & Grounded
Reasoning
Knowledge
Instruction Following
Multilingual
Mathematics

GPT-5.3 Codex· Sarvam 30B

Quick Verdict

Pick GPT-5.3 Codex if you want the stronger benchmark profile. Sarvam 30B only becomes the better choice if you want the cheaper token bill.

GPT-5.3 Codex is clearly ahead on the aggregate, 85 to 48. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.

GPT-5.3 Codex's sharpest advantage is in agentic, where it averages 74.4 against 35.5. The single biggest benchmark swing on the page is BrowseComp, 88% to 35.5%.

GPT-5.3 Codex is also the more expensive model on tokens at $2.50 input / $10.00 output per 1M tokens, versus $0.00 input / $0.00 output per 1M tokens for Sarvam 30B. That is roughly Infinityx on output cost alone. GPT-5.3 Codex gives you the larger context window at 400K, compared with 64K for Sarvam 30B.

Operational tradeoffs

ProviderOpenAISarvam
Price$2.50 / $10.00Free*
Speed79 t/sN/A
TTFT88.26sN/A
Context400K64K

Decision framing

BenchLM keeps the benchmark table and the operator tradeoffs on the same page so a better score does not hide a materially slower, pricier, or smaller-context model.

Runtime metrics show N/A when BenchLM does not have a sourced snapshot for that exact model. The scoring rules and freshness policy are documented on the methodology page.

BenchmarkGPT-5.3 CodexSarvam 30B
AgenticGPT-5.3 Codex wins
BrowseComp88%35.5%
OSWorld-Verified64.7%
CodingGPT-5.3 Codex wins
HumanEval95%92.1%
SWE-bench Verified85%34%
LiveCodeBench85%
SWE-bench Pro56.8%
SWE-Rebench58.2%
React Native Evals80.9%
LiveCodeBench v670.0%
Multimodal & Grounded
MMMU-Pro89%
OfficeQA Pro94%
Reasoning
MuSR93%
BBH98%
LongBench v292%
MRCRv293%
gpqaDiamond66.5%
KnowledgeGPT-5.3 Codex wins
MMLU99%85.1%
GPQA97%
SuperGPQA95%
MMLU-Pro90%80%
HLE44%
FrontierScience90%
SimpleQA95%
Instruction Following
IFEval93%
Multilingual
MGSM96%
MMLU-ProX91%
MathematicsGPT-5.3 Codex wins
AIME 202399%
AIME 202499%
AIME 202598%80%
HMMT Feb 202395%
HMMT Feb 202497%
HMMT Feb 202596%
BRUMO 202596%
MATH-50099%97%
HMMT Feb 202573.3%
HMMT Nov 202574.2%
Frequently Asked Questions (5)

Which is better, GPT-5.3 Codex or Sarvam 30B?

GPT-5.3 Codex is ahead overall, 85 to 48. The biggest single separator in this matchup is BrowseComp, where the scores are 88% and 35.5%.

Which is better for knowledge tasks, GPT-5.3 Codex or Sarvam 30B?

GPT-5.3 Codex has the edge for knowledge tasks in this comparison, averaging 81.5 versus 80. Inside this category, MMLU is the benchmark that creates the most daylight between them.

Which is better for coding, GPT-5.3 Codex or Sarvam 30B?

GPT-5.3 Codex has the edge for coding in this comparison, averaging 68.6 versus 34. Inside this category, SWE-bench Verified is the benchmark that creates the most daylight between them.

Which is better for math, GPT-5.3 Codex or Sarvam 30B?

GPT-5.3 Codex has the edge for math in this comparison, averaging 97.6 versus 86.5. Inside this category, AIME 2025 is the benchmark that creates the most daylight between them.

Which is better for agentic tasks, GPT-5.3 Codex or Sarvam 30B?

GPT-5.3 Codex has the edge for agentic tasks in this comparison, averaging 74.4 versus 35.5. Inside this category, BrowseComp is the benchmark that creates the most daylight between them.

Last updated: April 3, 2026

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