API cost decision in 10 seconds

NewGPT-6.1 Terra (batch) vs Claude Haiku 5.5 (batch)

Pick Claude Haiku 5.5 (batch) for lower cost; pick GPT-6.1 Terra (batch) only if the larger context window matters more.

Page updated:  Data confirmed:  Prices normalized to USD per 1M tokens Sample workload: 1M input + 500K output

Budget verdict

Pick Claude Haiku 5.5 (batch) for lower cost; pick GPT-6.1 Terra (batch) only if the larger context window matters more.

On the standard 1M input plus 500K output workload, Claude Haiku 5.5 (batch) is estimated at $0.17 vs $1.75 for GPT-6.1 Terra (batch), saving $1.57 (90% lower).

Cost-first pickClaude Haiku 5.5 (batch)
Context-first pickGPT-6.1 Terra (batch)
Sample savings$1.5790%
10x traffic gap$15.75

GPT-6.1 Terra (batch) has more context, but Claude Haiku 5.5 (batch) saves $1.57 on the standard workload. At 10x that traffic, the same price gap is about $15.75. Use the calculator below to replace the sample workload with your own token volume.

Cost sensitivity

Workload Sensitivity

Same prices, different token mixes.

Claude Haiku 5.5 (batch) stays cheaper across input-heavy, balanced, and output-heavy sample workloads.

Workload shapeToken mixBetter pickGPT-6.1 Terra (batch)Claude Haiku 5.5 (batch)
Input-heavy / RAG5M input + 500K outputClaude Haiku 5.5 (batch)$3.75$0.38
Balanced workload1M input + 1M outputClaude Haiku 5.5 (batch)$3$0.3
Output-heavy chatbot1M input + 5M outputClaude Haiku 5.5 (batch)$13$1.3
Cheaper input Claude Haiku 5.5 (batch) $0.5 vs $0.05 / 1M

Claude Haiku 5.5 (batch) is $0.45 cheaper per 1M input tokens (90% lower; 10x difference).

Cheaper output Claude Haiku 5.5 (batch) $2.5 vs $0.25 / 1M

Claude Haiku 5.5 (batch) is $2.25 cheaper per 1M output tokens (90% lower; 10x difference).

Larger context GPT-6.1 Terra (batch) 1.05M vs 1M

GPT-6.1 Terra (batch) has 50K more context (1.05x larger).

Sample workload Claude Haiku 5.5 (batch) $1.75 vs $0.17

Claude Haiku 5.5 (batch) is $1.57 cheaper on the standard workload (90% lower).

Estimate your workload cost

Your Workload Cost

Prices are normalized to USD per 1M tokens.
GPT-6.1 Terra (batch) Calculating… Estimated API cost
Claude Haiku 5.5 (batch) Calculating… Estimated API cost
Cheaper for this workload Calculating… Difference: calculating…

This estimate uses normalized public API pricing per 1M tokens. It is a planning aid, not a billing quote. Verify provider pricing, limits, and terms before production use.

Quick Decision

Verdict

Claude Haiku 5.5 (batch) has the lower input price; Claude Haiku 5.5 (batch) has the lower output price; GPT-6.1 Terra (batch) offers the larger context window. For the 1M input plus 500K output sample, Claude Haiku 5.5 (batch) is cheaper for the standard workload.

For a 1M input token plus 500K output token workload, the estimated API cost is $1.75 for GPT-6.1 Terra (batch) and $0.17 for Claude Haiku 5.5 (batch).

Best Fit

Choose GPT-6.1 Terra (batch) when you care most about larger context window.

Choose Claude Haiku 5.5 (batch) when you care most about lower input-token price, and lower output-token price.

Decision Notes
  • On the standard 1M input plus 500K output workload, Claude Haiku 5.5 (batch) is estimated at $0.17 vs $1.75 for GPT-6.1 Terra (batch), saving $1.57 (90% lower).
  • Claude Haiku 5.5 (batch) is $1.57 cheaper on the standard workload (90% lower).
  • Claude Haiku 5.5 (batch) is $0.45 cheaper per 1M input tokens (90% lower; 10x difference).
  • Claude Haiku 5.5 (batch) is $2.25 cheaper per 1M output tokens (90% lower; 10x difference).
  • GPT-6.1 Terra (batch) has 50K more context (1.05x larger).
Head-to-Head Specs
FeatureNewGPT-6.1 Terra (batch)
(OpenAI)
Claude Haiku 5.5 (batch)
(Anthropic)
Input Price
prompt tokens per 1M
$0.5$0.05
Completion Price
per 1M tokens
$2.5$0.25
Sample Workload Cost
1M input + 500K output
$1.75$0.17
Context Window1.05M1M
Release Date

Use-Case Decision Matrix

Use caseBetter pickWhy
Budget-constrained productionClaude Haiku 5.5 (batch)On the standard 1M input plus 500K output workload, Claude Haiku 5.5 (batch) is estimated at $0.17 vs $1.75 for GPT-6.1 Terra (batch), saving $1.57 (90% lower).
High-volume input processingClaude Haiku 5.5 (batch)Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill.
Long responses and chatbotsClaude Haiku 5.5 (batch)Lower output-token price matters most when assistants generate many completion tokens.
RAG or long-document workGPT-6.1 Terra (batch)A larger context window leaves more room for retrieved passages, conversation history, or source files.

Related Alternatives

Same-provider lower-cost swaps
  • gpt-oss-120b (free) can replace GPT-6.1 Terra (batch) when lower sample workload cost matters most: $0.
  • gpt-oss-20b (free) can replace GPT-6.1 Terra (batch) when lower sample workload cost matters most: $0.
  • gpt-oss-20b can replace GPT-6.1 Terra (batch) when lower sample workload cost matters most: $0.06.
  • gpt-oss-20b (batch) can replace GPT-6.1 Terra (batch) when lower sample workload cost matters most: $0.08.
Larger context near this budget
  • Llama 4 Scout offers 1.31M context with $0.25 sample workload cost.

Cheaper alternatives

Review low-cost models sorted by a standard 1M input plus 500K output workload.

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Larger context alternatives

Find models with larger context windows for RAG, long documents, and codebase review.

Open largest context models

Provider catalogs

Compare models within provider hubs before choosing a final API vendor.

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OpenAI catalog

Review all tracked OpenAI models before deciding whether this matchup is the right shortlist.

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Anthropic catalog

Check other Anthropic models with comparable pricing, context, or release timing.

Open Anthropic models
GPT-6.1 Terra (batch)

GPT-6.1 Terra is the mid-tier model in OpenAI's GPT-6.1 series, priced below GPT-6.1 Sol. It is suited for everyday agentic, coding, and writing work, is particularly strong at understanding screenshots...

Claude Haiku 5.5 (batch)

Claude Haiku 5.5 is Anthropic's small, fast model for high-volume, cost-sensitive work such as summarization, subagents, and browser use. It succeeds Claude Haiku 4.5 with stronger coding, computer use, and...