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gpt-oss-120b vs Sakana Namazu

gpt-oss-120b

OpenAI

40#232
vs
Sakana Namazu

sakana

40#233
Signal-by-Signal Comparison
Signalgpt-oss-120bDeltaSakana Namazu
Capabilities
67
-33
100
Benchmarks
46
+46
0
Pricing
100
+4
96
Context window size
81
-5
86
Recency
65
-35
100
Output Capacity
85
+5
80
Overall Result
3 wins
of 6
3 wins
It's a tie - both models win 3 signals each

Score History

Score History (26 data points)
gpt-oss-120bSakana Namazu
gpt-oss-120b

40.4

current score

Leader

gpt-oss-120b

right now

Sakana Namazu

40

current score

LMMarketCap.com
Interactive Price Comparison
100Kcalls/month
1,000tokens (~1,333 chars)
500tokens (~667 chars)

gpt-oss-120b

OpenAI

Best Value
Per request$0.000122
Daily$0.41
Monthly$12.20
Annual$146.40

Sakana Namazu

sakana

Per request$0.002950
Daily$9.83
Monthly$295.00
Annual$3540.00

gpt-oss-120b saves you $282.80/month

That's $3393.60/year compared to Sakana Namazu at your current usage level of 100K calls/month.

96% cheaper
Choose gpt-oss-120b for cost optimization

gpt-oss-120b pricing:
Input:$0.04/M tokens
Output:$0.17/M tokens
Sakana Namazu pricing:
Input:$0.95/M tokens
Output:$4.00/M tokens
Winner
gpt-oss-120b

OpenAI

40

Composite Score

Sakana Namazu

sakana

40

Composite Score

Signal-by-Signal Comparison
Metricgpt-oss-120bSakana NamazuWinner
Overall Score
40
40
gpt-oss-120b
Rank#232#233
gpt-oss-120b
Quality Rank#232#233
gpt-oss-120b
Adoption Rank#232#233
gpt-oss-120b
Parameters120B----
Context Window131K262K
Sakana Namazu
Pricing$0.04/$0.17/M$0.95/$4.00/M--
Signal Scores
Capabilities
67
100
Sakana Namazu
Benchmarks
46
--
gpt-oss-120b
Pricing
100
96
gpt-oss-120b
Context window size
81
86
Sakana Namazu
Recency
65
100
Sakana Namazu
Output Capacity
85
80
gpt-oss-120b
Benchmark Head-to-Head(2 benchmarks)
gpt-oss-120b: 0Sakana Namazu: 0
gpt-oss-120b
Sakana Namazu
Normalized 0-100%
SWE-bench Verified
26%-
Arena Elo
1352-
Benchmark Interpretation

Our score (0-100) is driven by benchmark performance (90%) from Arena Elo ratings, MMLU, GPQA, HumanEval, SWE-bench, and 15+ standardized evaluations. Capabilities and context window serve as tiebreakers (10%). Learn more about our methodology.

gpt-oss-120bEntry Level

Scores 40/100 (rank #232), placing it in the top 20% of all 290 models tracked.

Raw Quality0/100
Cost Efficiency0/100
Speed0/100
Sakana NamazuEntry Level

Scores 40/100 (rank #233), placing it in the top 20% of all 290 models tracked.

Raw Quality0/100
Cost Efficiency0/100
Speed0/100

With only a 0-point gap, these models are in the same performance tier. The practical difference in output quality is minimal - your choice should depend on pricing, latency requirements, and specific feature needs.

When to Use Each Model

Choose gpt-oss-120b when you need:

  • High-volume production workloads where API costs must be minimized
  • Step-by-step reasoning and chain-of-thought problem solving
  • Self-hosted deployments where you need full control over the model

Choose Sakana Namazu when you need:

  • Processing long documents or large codebases (262K token context)
  • Multimodal workflows that require image understanding
  • Step-by-step reasoning and chain-of-thought problem solving
Cost-Performance Analysis
gpt-oss-120bBest Value
Input cost$0.04/M tokens
Output cost$0.17/M tokens
Cost per quality point$0.005
Est. monthly (1M tokens/day)$3.10
Sakana Namazu
Input cost$0.95/M tokens
Output cost$4.00/M tokens
Cost per quality point$0.124
Est. monthly (1M tokens/day)$74.25

gpt-oss-120b offers 96% better value per quality point. At 1M tokens/day, you'd spend $3.10/month with gpt-oss-120b vs $74.25/month with Sakana Namazu - a $71.14 monthly difference.

Latency & Speed
gpt-oss-120bFaster
Speed score0/100
Sakana Namazu
Speed score0/100

Both models have comparable response speeds. For most applications, the latency difference is negligible.

When latency matters most: Interactive chatbots, IDE code completion, real-time translation, and user-facing applications where response time directly impacts experience. For batch processing, background summarization, or offline analysis, latency is less critical.

Example Use Cases

Code generation & review

Based on overall model capabilities and architecture for coding tasks like generating functions, debugging, and refactoring

gpt-oss-120b

Customer support chatbot

Suitable for user-facing chat with competitive response times. gpt-oss-120b also offers lower per-token costs for high-volume support

gpt-oss-120b

Long document analysis

Larger context window (262K tokens) can process longer documents, contracts, and research papers in a single pass

Sakana Namazu

Batch data extraction

Lower output pricing ($0.17/M) reduces costs when processing thousands of records daily

gpt-oss-120b

Creative writing & content

Higher overall composite score (40/100) correlates with better nuance, coherence, and style in long-form content

gpt-oss-120b

Image understanding & OCR

Supports vision input - can analyze screenshots, diagrams, photos, and scanned documents directly

Sakana Namazu
Which Should You Choose?
Our recommendation:
gpt-oss-120b

gpt-oss-120b and Sakana Namazu are extremely close in overall performance (only 0.3999999999999986 points apart). Your best choice depends entirely on which specific strengths matter most for your use case.

gpt-oss-120b
Recommended

by OpenAI

  • Choose for Quality - Marginally better benchmark scores; both are excellent
  • Choose for Cost - 96% lower pricing; better value at scale
  • Choose for Reliability - Higher uptime and faster response speeds
  • Choose for Prototyping - Stronger community support and better developer experience
  • Choose for Production - Wider enterprise adoption and proven at scale

by sakana

Consider for specialized use cases.

Capability Comparison
Capabilitygpt-oss-120bSakana Namazu
Vision (Image Input)differs
Function Calling
Streaming
JSON Mode
Reasoning
Web Searchdiffers
Image Output
Monthly Cost Calculator
1,000tokens (600 in / 400 out)
100requests/day (3,000/month)

gpt-oss-120b

OpenAI

Best Value
$0.2706
estimated monthly cost

Sakana Namazu

sakana

$6.51
estimated monthly cost

gpt-oss-120b saves you $6.24/month

That's 96% cheaper than Sakana Namazu at 1,000 tokens/request and 100 requests/day.

Assumes 60% input / 40% output token ratio per request. Actual costs may vary based on your usage pattern.

Parameters & Context
Parametergpt-oss-120bSakana Namazu
Context Window131K262K
Max Output Tokens131,07265,536
Open SourceYesNo
CreatedAug 5, 2025Aug 11, 2026
Last updated: 21m ago

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gpt-oss-120b vs Sakana Namazu (2026) | LM Market Cap