Model comparison

Grok 4.7 vs Upstage Solar Pro 4

Q: Is Grok 4.7 or Upstage Solar Pro 4 cheaper for input?

Upstage Solar Pro 4 is cheaper at $0.30 per million input tokens, against $2 for Grok 4.7 — roughly 6.7× the price. Output tokens usually dominate a real bill, so weigh the output rate more heavily than the input rate. These are base rates; Grok 4.7 has tiered pricing: $2/$6 per MTok (<200K prompt); $4/$12 for all tokens at ≥200K. Cached input $0.50/MTok ($1.00 at ≥200K). US regional endpoint 1.1x. No Batch API; the 2x-price 'Fast' variant is Cursor and Grok Build only. xAI lists no separate text-output cap. Knowledge cutoff May 2026. Upstage Solar Pro 4 has tiered pricing: List $0.30/$1.20 per MTok; cached input $0.06. The 90%-off launch promo ended 2026-09-10. Closed API. 524K context with up to 128K output.

Q: Is Grok 4.7 or Upstage Solar Pro 4 cheaper for output?

Upstage Solar Pro 4 is cheaper at $1.20 per million output tokens, against $6 for Grok 4.7 — roughly 5.0× the price. Output tokens usually dominate a real bill, so weigh the output rate more heavily than the input rate. These are base rates; Grok 4.7 has tiered pricing: $2/$6 per MTok (<200K prompt); $4/$12 for all tokens at ≥200K. Cached input $0.50/MTok ($1.00 at ≥200K). US regional endpoint 1.1x. No Batch API; the 2x-price 'Fast' variant is Cursor and Grok Build only. xAI lists no separate text-output cap. Knowledge cutoff May 2026. Upstage Solar Pro 4 has tiered pricing: List $0.30/$1.20 per MTok; cached input $0.06. The 90%-off launch promo ended 2026-09-10. Closed API. 524K context with up to 128K output.

Q: Which has the larger context window, Grok 4.7 or Upstage Solar Pro 4?

Upstage Solar Pro 4 accepts 524K tokens against 500K for Grok 4.7. This only matters if you routinely send very long documents or large codebases.

Q: Do Grok 4.7 and Upstage Solar Pro 4 support the same reasoning levels?

Grok 4.7 exposes low, medium, high, xhigh, while Upstage Solar Pro 4 exposes low, medium, high.

Q: Should I use Grok 4.7 or Upstage Solar Pro 4?

Both sit in the frontier tier, so the choice usually comes down to price and context rather than capability. Grok 4.7 suits coding agents; Upstage Solar Pro 4 suits long-context.

SpaceXAI against Upstage, compared on context, price, and verified benchmark results.

Catalog record checked September 26, 2026Individual provider fields may changeEvidence confidence: High — see receipts below

SpaceXAI

Grok 4.7

Frontier

Upstage

Upstage Solar Pro 4

Frontier

AI model capability comparison
Specification	Grok 4.7	Upstage Solar Pro 4
Provider
Provider	SpaceXAI	Upstage
Tier
Tier	Frontier	Frontier
Context window
Context window	500K	Winner: 524K
Max output
Max output	Not verifiedUnverified	128K
Input / 1M tokens
Input / 1M tokens	$2	Winner: $0.30
Output / 1M tokens
Output / 1M tokens	$6	Winner: $1.20
Weights
Weights	Closed	Closed
Parameters
Parameters	new, larger base model with longer RL on multi-hour tasks	Not disclosedUnverified
Reasoning levels
Reasoning levels	low, medium, high, xhigh	low, medium, high
Modalities
Modalities	text, image	text
API model id
API model id	grok-4.7	solar-pro4
Released
Released	September 21, 2026	August 10, 2026
Artificial Analysis Intelligence Index [xhigh] (2026-09-26)
Artificial Analysis Intelligence Index [xhigh] (2026-09-26)	46.4	Not verifiedUnverified
Artificial Analysis Intelligence Index (2026-09-26)
Artificial Analysis Intelligence Index (2026-09-26)	Not verifiedUnverified	28.2
DeepSWE 1.1 [high] (2026-09-21)
DeepSWE 1.1 [high] (2026-09-21)	71	Not verifiedUnverified
Terminal-Bench 4.0 [xhigh] (2026-09-26)
Terminal-Bench 4.0 [xhigh] (2026-09-26)	25.8	Not verifiedUnverified

Prices are USD per million tokens at standard rates, excluding batch and caching discounts. Bold indicates the better figure where one is objectively better. 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.

2026-09-26
Artificial Analysis Terminal-Bench 4.0 (independent AA run, part of Intelligence Index v4.3.2)
Agentic terminal work: long multi-step tasks executed in a sandboxed shell environment.
Comparable with caveatNOT comparable with Terminal-Bench 2.x or 3.0 — 4.0 uses a new, non-overlapping task set. Within 4.0, scores from different harnesses (tbench.ai agent entries vs Artificial Analysis runs) are not interchangeable.
2026-09-26
Artificial Analysis (AA-estimated)
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 measuredAt.
2026-09-21
xAI — Grok 4.7 announcement (vendor; not yet on Datacurve's board)
Agentic software engineering: pass@1 on real repo tasks with reported cost per completed task.
Directly comparable

Pricing tiers

Grok 4.7: $2/$6 per MTok (<200K prompt); $4/$12 for all tokens at ≥200K. Cached input $0.50/MTok ($1.00 at ≥200K). US regional endpoint 1.1x. No Batch API; the 2x-price 'Fast' variant is Cursor and Grok Build only. xAI lists no separate text-output cap. Knowledge cutoff May 2026.

Upstage Solar Pro 4: List $0.30/$1.20 per MTok; cached input $0.06. The 90%-off launch promo ended 2026-09-10. Closed API. 524K context with up to 128K output.

FrontierRecord checked September 26, 2026

Grok 4.7

Grok 4.7 is xAI's flagship since 2026-09-21 — a larger new base model with longer RL on multi-hour tasks, at Grok 4.6's $2/$6 price.

Best for

Coding agents
Cost-sensitive frontier work
Cursor and GitHub Copilot users

Watch out

Token rates double above a 200K-token prompt and there is no Batch API; the DeepSWE figure is vendor-reported.

FrontierRecord checked September 26, 2026

Upstage Solar Pro 4

Solar Pro 4 is Upstage's closed flagship with a 524K context at a low $0.30/$1.20 list price.

Best for

Long-context
Cost-sensitive API
Korean + English

Watch out

Closed API; the launch promo has ended, so budget at the $0.30/$1.20 list rate.

When the cheaper one wins

Upstage Solar Pro 4 is cheaper on output at $1.20 per million tokens against $6 for Grok 4.7 — about 5.0×. Use the cheaper tier for classification, extraction, summarisation, and any task where the expensive model’s extra score does not change the accepted output. The expensive one only pays if your hardest task actually fails on the cheap tier. These are standard-tier API rates, excluding batch and cache discounts.

Run the model picker

Evidence confidence: High

How strong and complete the evidence behind this comparison is — not a prediction of which model is better.

Pricing verified on both sides — Input and output rates are verified for both models.
3/5 core specs verified on both sides — Not published for at least one side: max output, parameter count.
1 shared named benchmark with differing scores — Measured on: Artificial Analysis Intelligence Index.
Verified within the last 90 days — Newest catalog check was 2 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.

Grok 4.7: xAI — Grok 4.7 (accessed 2026-09-26)
Grok 4.7: xAI docs — grok-4.7 model card (accessed 2026-09-26)
Grok 4.7: xAI pricing (grok-4.7 $2/$6, ≥200K $4/$12) (accessed 2026-09-26)
Grok 4.7: GitHub changelog — Grok 4.7 in Copilot (2026-09-21) (accessed 2026-09-26)
Upstage Solar Pro 4: Upstage — Solar Pro 4 (accessed 2026-08-29)
Upstage Solar Pro 4: Upstage (accessed 2026-08-29)

Related comparisons

Diving deeper on one model? Grok 4.7 · Upstage Solar Pro 4

Common questions