Model comparison
Base 1 vs GPT-5.6 Terra
Base44 against OpenAI, compared on context, price, and attributed benchmark results.
Recorded profile verification October 2, 2026Individual provider fields may changeEvidence confidence: Insufficient data — see receipts below
Base44
Base 1
Balanced
OpenAI
GPT-5.6 Terra
Balanced
| Specification | Base 1 | GPT-5.6 Terra |
|---|---|---|
| Provider | ||
| Provider | Base44 | OpenAI |
| Tier | ||
| Tier | Balanced | Balanced |
| Context window | ||
| Context window | Not verifiedUnverified | 1.05M |
| Max output | ||
| Max output | Not verifiedUnverified | 128K |
| Input / 1M tokens | ||
| Input / 1M tokens | Not verifiedUnverified | $2 |
| Output / 1M tokens | ||
| Output / 1M tokens | Not verifiedUnverified | $12 |
| Weights | ||
| Weights | Not verifiedUnverified | Closed |
| Parameters | ||
| Parameters | Not verifiedUnverified | Not verifiedUnverified |
| Reasoning levels | ||
| Reasoning levels | Not verifiedUnverified | none, low, medium, high, xhigh, max |
| Modalities | ||
| Modalities | text | text, image |
| API model id | ||
| API model id | Not verifiedUnverified | gpt-5.6-terra |
| Released | ||
| Released | Not verifiedUnverified | July 9, 2026 |
| Artificial Analysis Intelligence Index [max] · source date GPT-5.6 Terra: 2026-10-01 | ||
| Artificial Analysis Intelligence Index [max] · source date GPT-5.6 Terra: 2026-10-01 | Not verifiedUnverified | 42 |
| Terminal-Bench 2.1 · source date GPT-5.6 Terra: 2026-07-09 | ||
| Terminal-Bench 2.1 · source date GPT-5.6 Terra: 2026-07-09 | Not verifiedUnverified | 87.4 |
| LiveBench · source date GPT-5.6 Terra: 2026-09-05 | ||
| LiveBench · source date GPT-5.6 Terra: 2026-09-05 | Not verifiedUnverified | 77.9 |
Dates beside benchmark scores refer to the linked source’s publication or capture date unless that source explicitly states when it measured the result. A shared URL alone does not establish comparable runs; unverified setups are marked. Prices are USD per million tokens at standard rates, excluding batch and caching discounts. Values we could not confirm from the provider are shown as “Not verified” rather than estimated.
Benchmark receipts
Where each score comes from, and how far it can be compared across models.
- Source date2026-10-01Artificial Analysis (GPT-5.6 Terra (max))
Composite index blending reasoning, knowledge, and coding evals into one 0–100 score.
Comparable with caveatOnly same-version scores are comparable. v4.3.2 was rebaselined (the top score fell from 66 on v4.1.1 to ~58), so v4.1.1 figures must not be compared with v4.3.2 figures — check the cited source and its date.
- Source date2026-09-05LiveBench official leaderboard (benchmark-owned), max effort
Contamination-resistant general capability across reasoning, coding, math, data analysis, and language, with monthly question refreshes.
Comparable with caveatCompare only observations confirmed to use the same exact question-set version. Date proximity (including within one month) does not establish identical questions; when the version is unavailable, treat the scores as unaligned.
- Source date2026-07-09OpenAI GPT-5.6 launch table (vendor-reported; effort and experiment date unspecified) (Vendor launch table; complete common run settings unverified)
Agentic terminal work: multi-step tasks executed in a sandboxed shell environment.
Comparable with caveatNot comparable with Terminal-Bench 3.0 or 4.0 (different task sets) or v1; harness configuration (container, time limits) also shifts results.
Pricing tiers
Base 1: Uses Base44 message credits. Model-specific cost is shown under Credits Used per message; no direct token-rate API price is verified.
GPT-5.6 Terra: Launch $2.50/$15, reduced to $2/$12 on July 30. Above 272K input the full request bills $4/$18. Cached input $0.20; cache writes $2.50 at short context. Batch $1/$6 at short context. Regional/FedRAMP processing adds 10% where eligible.
Base 1
Base44's first in-house model is offered in its app-building chat, with the publisher describing it as trained on platform building patterns.
Best for
- Evaluating app-building prompts within Base44
- Comparing builder output in an eligible Base44 account
Watch out
No direct inference endpoint, stable API ID, downloadable checkpoint/license, exact context/output limits, parameter count or comparable numeric benchmark is verified. The founder announcement and product changelog do not establish a reliable day-level release date in captured page metadata. The manual model-selection guide requires Builder or higher, while the changelog uses broader all-plan language; verify account access. Publisher fit claims are not independent quality results.
GPT-5.6 Terra
OpenAI’s middle GPT-5.6 tier for balancing intelligence and cost, with text/image input and a 1.05M-token context.
Best for
- Cost-sensitive production
- Mixed reasoning workloads
- High-volume agents
Watch out
GPT-6.1 Sol lists the same $2 input price and a lower $10 output price than Terra’s $12. Compare representative tasks rather than infer quality from token prices or one index. Terra remains listed in the API model catalog.
When the cheaper one wins
One of these rows is missing a verified output price, so this page will not name a cheaper winner. Run the model picker against the actual job instead of guessing.
Run the model pickerEvidence confidence: Insufficient data
How strong and complete the evidence behind this comparison is — not a prediction of which model is better. Hard limitations apply: missing pricing; evidence too sparse.
- Pricing incomplete — No verified token pricing for Base 1.
- 0/5 core specs verified on both sides — Not published for at least one side: context window, max output, release date, parameter count, reasoning levels.
- No directly aligned benchmark setup — No benchmark has matching cited sources, source dates, units, effort and recorded run details on both models.
- Verified within the last 90 days — Older of the two catalog checks was 25 days ago.
- Both models carry source citations — Each side has at least two catalog sources on record.
Source receipts
Each catalog figure was checked against the provider or an independent second source on the date shown.
- Base 1: Product model access and modes (accessed 2026-10-02)
- Base 1: Publisher model announcement (accessed 2026-10-02)
- Base 1: Product rollout changelog (accessed 2026-10-02)
- Base 1: Credit billing (accessed 2026-10-02)
- GPT-5.6 Terra: OpenAI model card — whole-profile source check October 1 (accessed 2026-10-01)
- GPT-5.6 Terra: OpenAI current API pricing and processing tiers (accessed 2026-10-01)
- GPT-5.6 Terra: OpenAI — GPT-5.6 (accessed 2026-08-29)
- GPT-5.6 Terra: OpenAI API pricing (gpt-5.6-terra $2/$12) (accessed 2026-08-29)
Related comparisons
- Amazon Nova 2 Lite vs Base 1
- Amazon Nova 2 Lite vs GPT-5.6 Terra
- Amazon Nova 2 Pro vs Base 1
- Amazon Nova 2 Pro vs GPT-5.6 Terra
- Base 1 vs Claude Sonnet 5
- Base 1 vs Claude Sonnet 5.5
Diving deeper on one model? Base 1 · GPT-5.6 Terra
Common questions
Base 1 vs GPT-5.6 Terra
Answered from the verified figures on this page rather than general guidance.
Should I use Base 1 or GPT-5.6 Terra?
Next step
Choosing between them
The verified figures that separate this pair, computed from the catalog rather than restated boilerplate.
These two models match on every verified catalog figure — the decision comes down to provider preference, availability, and workload fit rather than published numbers.
Choosing a harness rather than a model — Cursor, Copilot, Claude Code, Windsurf, or Lovable? Compare agentic harnesses · Latest releases.