AI Models · Paid vs Paid

GPT-5.6 Terra Paid vs Claude Haiku 4.5 Paid

GPT-5.6 Terra vs Claude Haiku 4.5 compared — price per token, context window, multimodality, openness and which to choose. Full 2026 breakdown.

GPT-5.6 Terra — full profile ›  ·  Claude Haiku 4.5 — full profile ›

Prices & specs refreshed from live data · OpenSourceAI.tech

Open-model prices = cheapest provider via OpenRouter; official maker rates may be higher.

Choose Claude Haiku 4.5 for the lower output price ($5/M vs $15/M). Choose GPT-5.6 Terra if you need the larger 1.1M context window.

GPT-5.6 Terra vs Claude Haiku 4.5 specs

SpecGPT-5.6 TerraClaude Haiku 4.5
MakerOpenAIAnthropic
TypeProprietaryProprietary
Context window1.1M tokens200K tokens
Input price$2.5/M$1/M
Output price$15/M$5/M
Vision / multimodalYesYes
Tool / function callingYesYes
Self-hostableNo (API only)No (API only)
LicenseProprietaryProprietary

Feature comparison

CapabilityGPT-5.6 TerraClaude Haiku 4.5
Open weights (downloadable)✗✗
Self-hostable✗✗
Runs fully offline✗✗
Vision / multimodal✓✓
Tool / function calling✓✓
1M+ context window✓✗

Benchmarks: GPT-5.6 Terra vs Claude Haiku 4.5

Independent benchmark scores measured by Artificial Analysis. Higher is better (except latency).

GPT-5.6 Terra
Claude Haiku 4.5
Intelligence index
55
–
Coding index
76.7
–
GPQA
92.5%
–
Humanity's Last Exam
41.8%
–
Long Context Reasoning
74%
–
SciCode
53.9%
–
IFBench
71.2%
–
τ²-Bench
86.3%
–
τ-Bench Banking
31.8%
–
Terminal-Bench
88%
–
Terminal-Bench Hard
57.6%
–
Speed
153.9 tok/s
–
Latency
102.59s
–
Intelligence per $
9.8
–

Benchmark data by Artificial Analysis.

How GPT-5.6 Terra and Claude Haiku 4.5 score

🤝 Neck and neck on these criteria (3.1 vs 3.1 / 5).
CriterionGPT-5.6 TerraClaude Haiku 4.5
Cost-efficiency3.04.0
Context window5.04.0
Openness1.51.5
Self-hosting1.01.0
Multimodality5.05.0

Scores come from live data — output price (cost), context length, open vs closed weights (openness & self-hosting) and vision/tool support (multimodality). Raw task quality isn't scored here; it depends on your benchmark — see the verdict.

What each model is

GPT-5.6 Terra Paid

OpenAI · Proprietary

GPT-5.6 Terra is a balanced model in OpenAI's GPT-5.6 series, positioned between the flagship Sol tier and the cost-efficient Luna tier. It is suited for everyday coding, reasoning, and agentic...

Claude Haiku 4.5 Paid

Anthropic · Proprietary

Claude Haiku 4.5 is Anthropic’s fastest and most efficient model, delivering near-frontier intelligence at a fraction of the cost and latency of larger Claude models. Matching Claude Sonnet 4’s performance...

Frequently asked questions

GPT-5.6 Terra vs Claude Haiku 4.5 — which is cheaper?

Claude Haiku 4.5 is cheaper on output ($5/M vs $15/M).

Which has the larger context window?

GPT-5.6 Terra offers the larger context window (1.1M tokens).

GPT-5.6 Terra vs Claude Haiku 4.5 — which should I pick in 2026?

Choose Claude Haiku 4.5 for the lower output price ($5/M vs $15/M). Choose GPT-5.6 Terra if you need the larger 1.1M context window.

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