--- title: "Is Grok 4.3 still undominated? · Undominated.ai" canonical: https://undominated.ai/check/x-ai__grok-4.3/ description: "Grok 4.3: whether it is still undominated. If anything in this catalogue is both better and cheaper, it is named, as of Sep 23, 2026. Unrated stays unrated." --- # Is Grok 4.3 still undominated? · Undominated.ai > Grok 4.3: whether it is still undominated. If anything in this catalogue is both better and cheaper, it is named, as of Sep 23, 2026. Unrated stays unrated. # Is Grok 4.3 a good deal? Whether anything in this catalogue beats Grok 4.3 on both quality and price, and what you give up if it does. A computation on the current catalogue, not an opinion. 13 undominated of 136 · Sep 23, 2026 [1 · Choose & set workload](#check-input)[2 · Read verdict](#check-verdict)[3 · Inspect alternatives](#check-options) As of Sep 23, 2026, Gemini 3.8 Flash scores higher and costs less than Grok 4.3 for Balanced on LMArena, but it is not a drop-in. You would give up: max output. [Inspect model evidence](/models/x-ai__grok-4.3/) [Compare differences & requirements](/compare/?models=x-ai%2Fgrok-4.3%2Cgoogle%2Fgemini-3.8-flash) Current model Grok 4.3 Balanced 3 tokens in per 1 out Balanced Summarise Chat Code gen Agentic Monthly spend (USD) Used only to say how many months a named switching cost would take to earn back. Leave blank to skip. Switching cost (USD) Gemini 3.8 Flash scores 97.0 points higher and costs 4% less, but you would give up: max output. [Grok 4.3](https://undominated.ai/models/x-ai__grok-4.3/) LMArena Elo · higher is better Scale starts at 1040 Elo ** 1397.7 Effective $/M · Balanced · lower is better ** $1.56/M [Gemini 3.8 Flash](https://undominated.ai/models/google__gemini-3.8-flash/) LMArena Elo · higher is better Scale starts at 1040 Elo ** 1494.7 Effective $/M · Balanced · lower is better ** $1.50/M Grok 4.3 takes text, image, file, returns up to 900,000 tokens from a 1,000,000-token context, and is listed by 4 sellers. Compared against 136 rated, priced models on this lens: nothing dominates it outright, 5 more dominate it but give something up. Grok 4.3 scores 1397.7 at $1.56 per million tokens for this mix. ## Higher score, lower price, named losses Not a drop-in. The loss is why these are not a recommendation. | Model | LMArena | Effective $/M | You give up | | --- | --- | --- | --- | | [Gemini 3.8 Flash](/models/google__gemini-3.8-flash/) | 1494.7 | $1.50/M | max output | | [Gemini 3.7 Flash](/models/google__gemini-3.7-flash/) | 1490.5 | $1.50/M | max output | | [Gemini 3.6 Flash](/models/google__gemini-3.6-flash/) | 1476.1 | $1.50/M | max output | | [GLM 5.3](/models/z-ai__glm-5.3/) | 1475.1 | $1.29/M | max output, image, file | | [GLM 5.3 Flash](/models/z-ai__glm-5.3-flash/) | 1471.9 | $0.237/M | file | 136 rated, priced standard models. Chartreuse is the frontier. Cobalt is the model you named, when it is not on the staircase. Copy watch URL [Open the frontier](/frontier/) The link keeps the model and mix, using the current catalogue. Monthly spend and switching cost stay in this browser tab and are left out of the link. ## Saved decision references Save the model, workload, catalogue date and capability-preservation rule in this browser. Spend, switching cost and bill contents are not saved. No account or notifications. Constraint: replacements must preserve the model’s capabilities; any losses remain named trade-offs. Historical decisions cannot be fully replayed from saved references: past prices, scores and capability evidence are not stored. Save this reference ## Continue your investigation - [Build a shortlist](/compare/) - [Inspect alternatives](/alternatives/) - [Check billing conditions](/traps/) - [Read model evidence](/models/)