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xAI launches Grok 4.5, challenging GPT-5.5 and Claude with lower costs · 10 sources tracked

By PulseAugur Editorial · [15 sources] ·

xAI has launched Grok 4.5, a new AI model positioned as a strong competitor in the market, particularly for coding and agent tasks. It boasts a significantly larger context window of 500,000 tokens and offers aggressive pricing, reportedly half the cost of models like GPT-4o and Claude. While Grok 4.5 demonstrates impressive token efficiency and competitive performance, especially in coding benchmarks, some independent evaluations suggest it may not yet match the absolute quality of top-tier models like Fable 5 or GPT-5.5 in certain raw quality metrics. AI

IMPACT Grok 4.5's aggressive pricing and token efficiency could pressure competitors and accelerate adoption for high-volume tasks.

RANK_REASON New model release from a frontier lab (xAI) with performance and pricing details.

Read on Towards AI →

AI-generated summary · Google Gemini · from 15 sources. How we write summaries →

xAI launches Grok 4.5, challenging GPT-5.5 and Claude with lower costs · 10 sources tracked

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Frontier Release
New model release from a frontier lab (xAI) with performance and pricing details.
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15 independent sources
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model release, product
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63 days old
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+5 source(s) since last score
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Full methodology in our editorial standards.

COVERAGE [15]

  1. AI Explained TIER_1 English(EN) · AI Explained ·

    A Model Explosion: GPT 5.6 Sol, Grok 4.5 and Meta Muse Rewrite the Rules

    What a week in AI, for real. GPT 5.6 may actually beat Claude Fable, in what you get for your money, while the new Grok 4.5 and Meta Muse Spark 1.1 make the choice even harder. Uncovering a dozen nuggets of gold you may have missed from all the viral headlines, I can also assure …

  2. Towards AI TIER_1 English(EN) · Caspar Bannink - Senior AI Engineer ·

    Grok 4.5 Is xAI's Coding Comeback. The Price Is the Shock.

    <div class="medium-feed-item"><p class="medium-feed-image"><a href="https://pub.towardsai.net/grok-4-5-is-xais-coding-comeback-the-price-is-the-shock-c801931d027a?source=rss----98111c9905da---4"><img src="https://cdn-images-1.medium.com/max/1200/1*7isHWkZVfgomNE4QWLtRpA.png" widt…

  3. Medium — AI coding tag TIER_1 English(EN) · Tushar Koshti ·

    Grok 4.5 Outperforms GPT-5.5 — at a Fraction of the Cost

    <div class="medium-feed-item"><p class="medium-feed-image"><a href="https://medium.com/@tusharkoshti/grok-4-5-outperforms-gpt-5-5-at-a-fraction-of-the-cost-363f086b07c4?source=rss------ai_coding-5"><img src="https://cdn-images-1.medium.com/max/1134/1*MUg0Rmf8Y5A2ngUujPVjbA.png" w…

  4. Mastodon — sigmoid.social TIER_1 English(EN) · [email protected] ·

    Grok 4.5 launches at aggressive pricing amid trust concerns, OpenAI ships full-duplex GPT-Live voice model, and Cognition releases SWE-1.7 as benchmark reliabil

    Grok 4.5 launches at aggressive pricing amid trust concerns, OpenAI ships full-duplex GPT-Live voice model, and Cognition releases SWE-1.7 as benchmark reliability debates heat up. https:// ai0.news/posts/2026-07-09-dail y-digest/ # AI # OpenAI # Robotics # OpenSource

    LINKS ai0.news/…/2026-07-09-daily-digest
  5. Mastodon — sigmoid.social TIER_1 English(EN) · [email protected] ·

    Get excited coders! Grok 4.5 is now available at half the cost of GPT-4o and Claude. Built specifically for coding and agents after xAI's massive $60B Cursor ac

    Get excited coders! Grok 4.5 is now available at half the cost of GPT-4o and Claude. Built specifically for coding and agents after xAI's massive $60B Cursor acquisition, it's going to change the game! # Grok45 # Coding # AI # GameChanger # TechNews Grok 4.5 Launches at Half the …

    LINKS squaredtech.co/grok-45-launches-at-half-t… squaredtech.co/grok-45-launches-at-half-t…
  6. Mastodon — fosstodon.org TIER_1 English(EN) · [email protected] ·

    SpaceXAI has open-sourced Grok Build, the Rust-based agent harness and terminal interface behind its grok coding CLI. The Apache 2.0 licensed release covers the

    SpaceXAI has open-sourced Grok Build, the Rust-based agent harness and terminal interface behind its grok coding CLI. The Apache 2.0 licensed release covers the agent loop, tool dispatch and extension system. Grok 4.5 itself remains closed. https://www. marktechpost.com/2026/07/1…

  7. Mastodon — fosstodon.org TIER_1 English(EN) · orhun ·

    SpaceXAI just open sourced Grok Build! 📢 🦀 Terminal-based AI coding agent written in Rust! 🐀 And it uses @ ratatui_rs for the TUI! 🥳 ⭐ https:// github.com/xai/g

    SpaceXAI just open sourced Grok Build! 📢 🦀 Terminal-based AI coding agent written in Rust! 🐀 And it uses @ ratatui_rs for the TUI! 🥳 ⭐ https:// github.com/xai/grok-build # rustlang # ratatui # terminal # tui # ai # codingagent

  8. Mastodon — fosstodon.org TIER_1 English(EN) · [email protected] ·

    xAI: Grok 4.5 is lot better model than Claude based models for the COST wise. Worth trying! # ai # aicoding # tutorial https://www. youtube.com/watch?v=p_PryFc3

    xAI: Grok 4.5 is lot better model than Claude based models for the COST wise. Worth trying! # ai # aicoding # tutorial https://www. youtube.com/watch?v=p_PryFc3CDo

    LINKS youtube.com/watch
  9. dev.to — LLM tag TIER_1 English(EN) · alex getman ·

    Grok 4.5: a new competitor to GPT and Claude

    <p>Grok 4.5: a new competitor to GPT and Claude</p> <p>Posting this a little late, but I prepared something interesting. Grok 4.5 is temporarily available to test for free in Grok Build and Cursor.</p> <p>The model runs at around&nbsp;80 tokens per second, supports a context wind…

  10. dev.to — LLM tag TIER_1 English(EN) · Bruno Santos ·

    Grok 4.5: what the numbers say beyond xAI's announcement

    <p>xAI released Grok 4.5, positioned as an Opus-class model that is faster, more token-efficient, and cheaper. It is worth separating what comes from the official announcement, what comes from independent evaluation, and what is specific to the launch partnership with Cursor.</p>…

  11. r/LocalLLaMA TIER_1 English(EN) · /u/qubridInc ·

    Grok 4.5 released - GLM-5.2 shows up in xAI's own charts, 2.6 pts behind on SWE Bench Pro

    <!-- SC_OFF --><div class="md"><p><a href="https://x.ai/news/grok-4-5">https://x.ai/news/grok-4-5</a></p> <p>Quick numbers from the launch page:</p> <ul> <li>$2/M input, $6/M output. Closed weights. No EU until mid-July.</li> <li>SWE Bench Pro: Fable 80.4% &gt; Opus 4.8 69.2% &gt…

  12. Mastodon — mastodon.social TIER_1 日本語(JA) · [email protected] ·

    SpaceXAI publicly releases "Grok 4.5", which is good at coding and cheap – PC Watch https://www.yayafa.com/?p=2842813 #AgenticAi #AI #ArtificialGeneralIntelligence #ArtificialIntelligence #

    SpaceXAI、コーディングが得意でしかも安い「Grok 4.5」一般公開 – PC Watch https://www. yayafa.com/?p=2842813 # AgenticAi # AI # ArtificialGeneralIntelligence # ArtificialIntelligence # Grok # xai # XAIGrok # エージェント型AI # その他 # 人工知能 # 市場 # 汎用人工知能

  13. Mastodon — mastodon.social TIER_1 Deutsch(DE) · aisyndicate ·

    xAI releases Grok 4.5: 4.2x more token-efficient than Opus 4.8, but trails Fable 5 and GPT-5.5 in coding benchmarks. Inference costs and token economy

    xAI veröffentlicht Grok 4.5: 4,2-mal tokeneffizienter als Opus 4.8, aber in Coding-Benchmarks hinter Fable 5 und GPT-5.5. Inferenzkosten und Token-Ökonomie werden im Modellbetrieb oft wichtiger als reine Spitzenwerte. https:// the-decoder.de/xai-veroeffentl icht-grok-4-5-fast-auf…

    LINKS the-decoder.de/xai-veroeffentlicht-grok-4…
  14. Mastodon — mastodon.social TIER_1 Polski(PL) · aisight ·

    xAI's latest Grok 4.5 model directly challenges the position of GPT 5.5 and Fable 5. Although it still lags behind rivals in demanding programming tests, its b

    Najnowszy model Grok 4.5 od xAI bezpośrednio uderza w pozycję GPT 5.5 oraz Fable 5. Choć w wymagających testach programistycznych wciąż ustępuje rywalom, jego bezprecedensowo niski koszt eksploatacji może zmienić układ sił na rynku komercyjnych rozwiązań AI. # si # ai # sztucznai…

    LINKS aisight.pl/…/grok-4-5-czy-niska-cena-zrek… aisight.pl/…/generatory-obrazow-ai-stereo…
  15. r/singularity TIER_2 English(EN) · /u/NoFaithlessness951 ·

    Grok-4.5 on par with gpt-5.5-xhigh in coding at half the cost

    <table> <tr><td> <a href="https://www.reddit.com/r/singularity/comments/1ur6bie/grok45_on_par_with_gpt55xhigh_in_coding_at_half/"> <img alt="Grok-4.5 on par with gpt-5.5-xhigh in coding at half the cost" src="https://preview.redd.it/jjyo98j1q2ch1.png?width=640&amp;crop=smart&amp;…

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