The Known Good Updated 29 Jul 2026
DeepSeek: R1 vs OpenAI: gpt-oss-120b ·DeepSeek vs OpenAI

DeepSeek: R1 vs OpenAI: gpt-oss-120b — head-to-head comparison

DeepSeek: R1 profile OpenAI: gpt-oss-120b profile All comparisons
DeepSeek: R1 — DeepSeek
Quality
#21 of 62
75based on 4 of 7 evaluations
Known Good Index
Speed
#154 of 317
49.1
Output tokens per second
Price
#222 of 370
$1.15
Blended per 1M tokens
In $0.70 · Out $2.50
Cache hit price
unranked
per 1M tokens
Context
#251 of 375
164k
tokens (~300 pages)
OpenAI: gpt-oss-120b — OpenAI
Quality
#42 of 62
61based on 3 of 7 evaluations
Known Good Index
Speed
#13 of 317
144.7
Output tokens per second
Price
#35 of 370
$0.07
Blended per 1M tokens
In $0.04 · Out $0.17
Cache hit price
#28 of 238
$0.015
per 1M tokens (−59%)
Context
#265 of 375
131k
tokens (~200 pages)
Summary

On the Known Good Index, DeepSeek: R1 scores 75 and OpenAI: gpt-oss-120b scores 61 — a 14-point lead for DeepSeek: R1. They share 2 published evaluations, with DeepSeek: R1 ahead on 0 and OpenAI: gpt-oss-120b ahead on 2.

Blended pricing is $1.15 per 1M tokens for DeepSeek: R1 and $0.07 for OpenAI: gpt-oss-120b — OpenAI: gpt-oss-120b is about 16.4× cheaper.

Throughput is 49 tokens per second for DeepSeek: R1 and 145 for OpenAI: gpt-oss-120b, with time to first token at 1.2s and 0.9s. DeepSeek: R1 accepts 164k tokens of context against 131k.

DeepSeek: R1 is open weights under Open weights (unrestricted); OpenAI: gpt-oss-120b is open weights under Open weights (unrestricted). 18 tracked hosts serve one or both, and 1 serve both.

Generated from tracked data on 29 Jul 2026 · how these comparisons are computed →

At a glance
MetricDeepSeek: R1OpenAI: gpt-oss-120b
Known Good Index 75 based on 4 of 7 evaluations 61 based on 3 of 7 evaluations
Blended $/1M $1.15 $0.07
Output tok/s 49 145
Context window 164k 131k
Providers 2 17
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Quality

Known Good Index and the capability indices, side by side

Index scores

Each index is min-max normalised across tracked models and scaled 0–100 from published evaluations. We do not run these evaluations.

MetricDeepSeek: R1OpenAI: gpt-oss-120b
Known Good Index 75 61
Mathematics Index 74 89
Reasoning Index 77
Agentic Index 18
Openness Index 60 60
The Known Good

Quality Breakdown

Every evaluation both models report a published score for

Evaluations both models report

Bar = DeepSeek: R1 · marker = OpenAI: gpt-oss-120b · scores ingested from Epoch AI (CC-BY 4.0)

GPQA Diamond69 / 76
Mock AIME 2024–2553 / 89

Right-hand figures read DeepSeek: R1 / OpenAI: gpt-oss-120b. DeepSeek: R1 leads on 0 of 2, OpenAI: gpt-oss-120b on 2.

The Known Good

Arena Elo

Human preference rating from blind pairwise votes

Arena ratings

Elo from blind pairwise votes, ingested from Arena. Higher is better.

MetricDeepSeek: R1OpenAI: gpt-oss-120b
Text Arena 1,373 1,366
Text Arena (style controlled) 1,398 1,352
The Known Good

Price & Cost

Published API pricing by token type

Published pricing

USD per 1M tokens. Blended is a 3:1 input:output mix. Live from OpenRouter, cross-checked against models.dev. Lower is better.

MetricDeepSeek: R1OpenAI: gpt-oss-120b
Input $/1M $0.70 $0.04
Output $/1M $2.50 $0.17
Blended $/1M $1.15 $0.07
Cache read $/1M $0.015
The Known Good
We publish blended price rather than cost-per-task. Cost-per-task requires token counts from an evaluation suite we do not run. Blended price is computed from published rates and is fully reproducible — see the pricing methodology.

Context Window

Maximum input accepted and maximum output emitted

Context and output limits

Provider-declared limits, from metadata via models.dev and OpenRouter. Higher is better.

MetricDeepSeek: R1OpenAI: gpt-oss-120b
Context window 164k 131k
Max output tokens 16k 131k
The Known Good

Speed & Latency

Median throughput and time to first token across hosting providers

Output speedTime to first token
Throughput and latency

Medians across all tracked providers, derived from OpenRouter endpoint telemetry.

MetricDeepSeek: R1OpenAI: gpt-oss-120b
Output tokens/s 49 145
Time to first token 1.2s 0.9s
The Known Good

Providers

Which hosts serve each model, and at what price and speed

18 hosts · 1 serve both
Full provider benchmarks →
Provider DeepSeek: R1 blendedDeepSeek: R1 tok/s OpenAI: gpt-oss-120b blendedOpenAI: gpt-oss-120b tok/s
Azure · first party $2.60 64
Novita $1.15 32 $0.10 64
Cerebras $0.45 501
SambaNova $0.34 367
Groq $0.26 352
Amazon Bedrock · first party $0.26 342
Nebius $0.26 231
DeepInfra $0.07 196
Google · first party $0.16 177
BaseTen $0.20 171
Mara $0.30 146
Together $0.26 114
Parasail $0.26 101
Phala $0.26 82
Mancer 2 $0.17 40
CoreWeave $0.07 32
DigitalOcean $0.17 22
SiliconFlow $0.15 12

Per-host pricing and telemetry from OpenRouter. A dash means that host does not serve that model.

The Known Good
Sources for this page
Pricing & providers — OpenRouter Metadata — models.dev Benchmarks — Epoch AI (CC-BY 4.0)Elo — Arena Full attribution →