Model comparison
Base 1 vs Grok 4.5
Base44 against SpaceXAI, 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
SpaceXAI
Grok 4.5
Balanced
| Specification | Base 1 | Grok 4.5 |
|---|---|---|
| Provider | ||
| Provider | Base44 | SpaceXAI |
| Tier | ||
| Tier | Balanced | Balanced |
| Context window | ||
| Context window | Not verifiedUnverified | 500K |
| Max output | ||
| Max output | Not verifiedUnverified | Not verifiedUnverified |
| Input / 1M tokens | ||
| Input / 1M tokens | Not verifiedUnverified | $2 |
| Output / 1M tokens | ||
| Output / 1M tokens | Not verifiedUnverified | $6 |
| Weights | ||
| Weights | Not verifiedUnverified | Closed |
| Parameters | ||
| Parameters | Not verifiedUnverified | Not verifiedUnverified |
| Reasoning levels | ||
| Reasoning levels | Not verifiedUnverified | low, medium, high |
| Modalities | ||
| Modalities | text | text, image |
| API model id | ||
| API model id | Not verifiedUnverified | grok-4.5 |
| Released | ||
| Released | Not verifiedUnverified | July 8, 2026 |
| Terminal-Bench 2.1 · source date Grok 4.5: 2026-07-16 | ||
| Terminal-Bench 2.1 · source date Grok 4.5: 2026-07-16 | Not verifiedUnverified | 83.3 |
| DeepSWE 1.1 · source date Grok 4.5: 2026-07-16 | ||
| DeepSWE 1.1 · source date Grok 4.5: 2026-07-16 | Not verifiedUnverified | 53 |
| DeepSWE 1.1 · source date Grok 4.5: 2026-07 | ||
| DeepSWE 1.1 · source date Grok 4.5: 2026-07 | Not verifiedUnverified | 54 |
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 date2026-07-16xAI — Introducing Grok 4.5 (vendor; Datacurve-run)
Agentic software engineering: pass@1 on real repo tasks with reported cost per completed task.
Directly comparable
- Source date2026-07-16xAI — Introducing Grok 4.5 (vendor)
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.
- Source date2026-07Google DeepMind 3.6 Flash evaluation report (vendor-authored cross-model comparison; distinct observation from xAI's 53, with run comparability unverified)
Agentic software engineering: pass@1 on real repo tasks with reported cost per completed task.
Directly comparable
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.
Grok 4.5: Standard $2/$6 per MTok below 200K prompt tokens; at 200K or more the full request bills $4/$12. Cached input $0.30 short or $0.60 long. US regional inference adds 10%. No separate text-output cap is verified.
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.
Grok 4.5
Grok 4.5 is SpaceXAI's hosted reasoning model with a 500K-token context and configurable low, medium and high effort.
Best for
- Real-time data queries
- Technical tasks
- Cost-sensitive reasoning
Watch out
An earlier API model, still listed in pricing; current docs recommend Grok 4.7. Context is 500K. xhigh requests map to high and reasoning cannot be disabled; presencePenalty, frequencyPenalty and stop are unsupported. Match the exact model, effort and dated benchmark configuration.
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)
- Grok 4.5: Whole-profile primary source check October 1 (accessed 2026-10-01)
- Grok 4.5: Whole-profile primary source check October 1 (accessed 2026-10-01)
- Grok 4.5: SpaceXAI API release notes — Grok4.5 July8, EU availability July17 (accessed 2026-10-01)
- Grok 4.5: SpaceXAI formal Grok4.5 announcement (July16; API release separately July8) (accessed 2026-08-29)
- Grok 4.5: xAI pricing (grok-4.5 $2/$6, 500K) (accessed 2026-08-29)
- Grok 4.5: SpaceXAI reasoning API (Grok 4.5 effort mapping) (accessed 2026-10-01)
Related comparisons
Common questions
Base 1 vs Grok 4.5
Answered from the verified figures on this page rather than general guidance.
Should I use Base 1 or Grok 4.5?
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.