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Claude Haiku 5.5 (batch) vs gpt-oss-120b (batch)

Signal-by-Signal Comparison
SignalClaude Haiku 5.5 (batch)Deltagpt-oss-120b (batch)
Capabilities
100
+33
67
Pricing
100
0
100
Context window size
95
+14
81
Recency
100
+46
54
Output Capacity
82
+1
81
Overall Result
4 wins
of 5
1 wins
Claude Haiku 5.5 (batch) wins 4 of 5 signals

Score History

Score History (8 data points)
Claude Haiku 5.5 (batch)gpt-oss-120b (batch)
Claude Haiku 5.5 (batch)

58

current score

Leader

Claude Haiku 5.5 (batch)

right now

gpt-oss-120b (batch)

40

current score

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

Claude Haiku 5.5 (batch)

Anthropic

Per request$0.000175
Daily$0.58
Monthly$17.50
Annual$210.00

gpt-oss-120b (batch)

OpenAI

Best Value
Per request$0.000098
Daily$0.33
Monthly$9.76
Annual$117.12

gpt-oss-120b (batch) saves you $7.74/month

That's $92.88/year compared to Claude Haiku 5.5 (batch) at your current usage level of 100K calls/month.

44% cheaper
Choose gpt-oss-120b (batch) for cost optimization

Claude Haiku 5.5 (batch) pricing:
Input:$0.05/M tokens
Output:$0.25/M tokens
gpt-oss-120b (batch) pricing:
Input:$0.03/M tokens
Output:$0.14/M tokens
Winner
Claude Haiku 5.5 (batch)

Anthropic

58

Composite Score

gpt-oss-120b (batch)

OpenAI

40

Composite Score

Signal-by-Signal Comparison
MetricClaude Haiku 5.5 (batch)gpt-oss-120b (batch)Winner
Overall Score
58
40
Claude Haiku 5.5 (batch)
Rank#176#379
Claude Haiku 5.5 (batch)
Quality Rank#176#379
Claude Haiku 5.5 (batch)
Adoption Rank#176#379
Claude Haiku 5.5 (batch)
Parameters--120B--
Context Window1000K131K
Claude Haiku 5.5 (batch)
Pricing$0.05/$0.25/M$0.03/$0.14/M--
Signal Scores
Capabilities
100
67
Claude Haiku 5.5 (batch)
Pricing
100
100
gpt-oss-120b (batch)
Context window size
95
81
Claude Haiku 5.5 (batch)
Recency
100
54
Claude Haiku 5.5 (batch)
Output Capacity
82
81
Claude Haiku 5.5 (batch)
Benchmark Head-to-Head(1 benchmarks)
Claude Haiku: 0gpt-oss-120b (batch): 0
Claude Haiku
gpt-oss-120b (batch)
Normalized 0-100%
HLE
30.12%-
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.

Claude Haiku 5.5 (batch)Competitive

Scores 58/100 (rank #176), placing it in the top 40% of all 290 models tracked.

Raw Quality0/100
Cost Efficiency0/100
Speed0/100
gpt-oss-120b (batch)Entry Level

Scores 40/100 (rank #379), placing it in the top -30% of all 290 models tracked.

Raw Quality0/100
Cost Efficiency0/100
Speed0/100

Claude Haiku 5.5 (batch) has a 18-point advantage, which typically translates to noticeably stronger performance on complex reasoning, code generation, and multi-step tasks.

When to Use Each Model

Choose Claude Haiku 5.5 (batch) when you need:

  • Processing long documents or large codebases (1000K token context)
  • Multimodal workflows that require image understanding
  • Step-by-step reasoning and chain-of-thought problem solving

Choose gpt-oss-120b (batch) 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
Cost-Performance Analysis
Claude Haiku 5.5 (batch)
Input cost$0.05/M tokens
Output cost$0.25/M tokens
Cost per quality point$0.005
Est. monthly (1M tokens/day)$4.50
gpt-oss-120b (batch)Best Value
Input cost$0.03/M tokens
Output cost$0.14/M tokens
Cost per quality point$0.004
Est. monthly (1M tokens/day)$2.48

gpt-oss-120b (batch) offers 45% better value per quality point. At 1M tokens/day, you'd spend $2.48/month with gpt-oss-120b (batch) vs $4.50/month with Claude Haiku 5.5 (batch) - a $2.02 monthly difference.

Latency & Speed
Claude Haiku 5.5 (batch)Faster
Speed score0/100
gpt-oss-120b (batch)
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

Claude Haiku 5.5 (batch)

Customer support chatbot

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

Claude Haiku 5.5 (batch)

Long document analysis

Larger context window (1000K tokens) can process longer documents, contracts, and research papers in a single pass

Claude Haiku 5.5 (batch)

Batch data extraction

Lower output pricing ($0.14/M) reduces costs when processing thousands of records daily

gpt-oss-120b (batch)

Creative writing & content

Higher overall composite score (58/100) correlates with better nuance, coherence, and style in long-form content

Claude Haiku 5.5 (batch)

Image understanding & OCR

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

Claude Haiku 5.5 (batch)
Which Should You Choose?
Our recommendation:
Claude Haiku 5.5 (batch)

Claude Haiku 5.5 (batch) clearly outperforms gpt-oss-120b (batch) with a significant 18-point lead. For most general use cases, Claude Haiku 5.5 (batch) is the stronger choice. However, gpt-oss-120b (batch) may still excel in niche scenarios.

by Anthropic

  • Choose for Quality - Marginally better benchmark scores; both are excellent
  • 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 OpenAI

  • Choose for Cost - 45% lower pricing; better value at scale
Capability Comparison
CapabilityClaude Haiku 5.5 (batch)gpt-oss-120b (batch)
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)

Claude Haiku 5.5 (batch)

Anthropic

$0.3900
estimated monthly cost

gpt-oss-120b (batch)

OpenAI

Best Value
$0.2165
estimated monthly cost

gpt-oss-120b (batch) saves you $0.1735/month

That's 44% cheaper than Claude Haiku 5.5 (batch) 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
ParameterClaude Haiku 5.5 (batch)gpt-oss-120b (batch)
Context Window1M131K
Max Output Tokens128,000117,964
Open SourceNoYes
CreatedOct 7, 2026Aug 5, 2025
Last updated: 5m ago

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Claude Haiku 5.5 (batch) vs gpt-oss-120b (batch) (2026) | LM Market Cap